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Sangeetha M, Pitchaimani J, Madhu V. Recent advancements in ubiquitous colorimetric and fluorometric sensors for the detection of methanol. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2025; 17:3856-3875. [PMID: 40314427 DOI: 10.1039/d4ay02024c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2025]
Abstract
Methanol, an aliphatic alcohol, is a widely recognized volatile organic compound (VOC) extensively used as a cost-effective solvent in various chemical, agricultural, and biological industries. However, the intentional adulteration of alcoholic beverages with inexpensive methanol for economic gain poses significant health hazards, including birth defects, respiratory illnesses, nervous system damage, and various chronic conditions. Prolonged exposure to methanol vapour can result in adverse effects such as eye inflammation, dizziness, headaches, insomnia, stomach problems, visual impairment, and even fatality. Notably, from 2017 to 2019, there were 7104 documented cases of methanol intoxication, resulting in 1888 fatalities across 306 recorded outbreaks of methanol poisoning. Notably, over 90% of these cases reported in Asia. Given the severe health risks associated with methanol, there is an urgent need for dependable detection methods to ensure public safety. One promising approach involves chemosensors capable of detecting methanol through changes in fluorescence or color. This review article provides a comprehensive overview of the latest advancements in methanol detection, categorizing sensors based on their materials, structural attributes, and detection mechanisms. In essence, the review highlights recent research progress in fluorometric and colorimetric methods for methanol detection.
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Affiliation(s)
- Mani Sangeetha
- ICAR-Krishi Vigyan Kendra, Tamil Nadu Agricultural University, Papparapatty-636 809, Dharmapuri, Tamil Nadu, India
| | - Jayaraman Pitchaimani
- Department of Chemistry, Sri Sai Ram Institute of Technology, West Tambaram, Chennai-600044, Tamil Nadu, India.
| | - Vedichi Madhu
- Multifunctional Materials and Catalysis Laboratory, Division of Physical Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641 114, Tamil Nadu, India.
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2
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Liu T, Hwang YJ, Zhang L, Hong J, Hwang T, Jun SC. Hybrid Series of Carbon-Vacancy Electrodes for Multi Chemical Vapors Diagnosis Using a Residual Multi-Task Model. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2025:e2500412. [PMID: 40349187 DOI: 10.1002/advs.202500412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2025] [Revised: 04/04/2025] [Indexed: 05/14/2025]
Abstract
Detecting individual gases with various sensors is a well-established field in gas sensing. However, substantial challenges and opportunities remain in the simultaneous detection and classification of multiple gases. Artificial intelligence (AI) integrated gas sensor systems effectively enable multi-gas detection using specialized algorithms. Nevertheless, these algorithms are prone to overfitting owing to their high model complexity; this study proposes a sensor array that engineers carbon vacancies in graphene oxide via metal ion doping and high-temperature reduction, enabling high-sensitivity, simultaneous detection of various gases at low temperatures (20 °C). By integrating an advanced artificial intelligence framework, the acquired electrical signals are transformed, and a multi-task learning (MTL) approach is applied to achieve instantaneous identification of four gas types and four-level concentrations. The proposed MTL framework demonstrates superior performance by effectively mitigating overfitting and improving generalization through feature sharing and mutual regularization between gas type classification and concentration estimation tasks. Experimental validation on vehicle exhaust gas fault diagnosis highlights the method's effectiveness and applicability in complex conditions, achieving 98.22% accuracy and 48% faster inference compared to traditional single-task models. This study provides a basis for developing more intelligent and adaptable sensor systems capable.
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Affiliation(s)
- Tianci Liu
- School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yun Ji Hwang
- School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Lu Zhang
- School of Electrical and Electronic Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jongwoo Hong
- School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Teajong Hwang
- School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Seong Chan Jun
- School of Mechanical Engineering, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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3
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Tang Y, Zhou B, Liu J, Guo L, Ying B, Chen X, Zhang W, Liang Y, Li L, Duan Q, Mao R, Wang P, Li HY, Liu H. Specific Odor Coding Using a Single Thin-Film Transistor. NANO LETTERS 2025; 25:7587-7594. [PMID: 40293971 DOI: 10.1021/acs.nanolett.5c01512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2025]
Abstract
The specificity of olfactory receptor cells (ORCs) in the human nose is the physiological basis for their powerful odor coding capacity. Ideally, artificial ORCs in bioinspired machine olfaction represented by electronic noses (e-noses) should have a desirable specificity. However, mapping gas-solid interactions at the ORC level for specific odor perception remains a key challenge because of the cross-sensitivity issues of gas sensors in e-noses. Here, we use a thin-film transistor (TFT) to generate a two-dimensional matrix code by resolving the electronic transduction process (chemical reception and electron transduction) arising from the gas-solid interactions. As a proof-of-concept experiment, we selected lead sulfide quantum dots and black phosphorus as sensitive materials and achieved specific discrimination between typical oxidizing gases. The developed coding method has physical interpretability, enabling its extension to other gas-sensitive materials and target analytes.
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Affiliation(s)
- Yanting Tang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Bowen Zhou
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Jingyao Liu
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Lanpeng Guo
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Binzhou Ying
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Xinyi Chen
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Wenjian Zhang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Yaxin Liang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Long Li
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Qiuyang Duan
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Rongyu Mao
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Peng Wang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Hua-Yao Li
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
| | - Huan Liu
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China
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Zhou Q, Feng M, Shi C, Qian M, Ma X, He R, Meng X, Shi Y, Cao Q, Zheng L. Multiple stimulus modulated organic crystal polymorphs with tunable luminescence behavior. Chem Sci 2025:d5sc01503k. [PMID: 40336996 PMCID: PMC12053732 DOI: 10.1039/d5sc01503k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2025] [Accepted: 04/28/2025] [Indexed: 05/09/2025] Open
Abstract
Polymorphism is defined as the ability of a substance to exist in two or more crystalline forms, which provide a unique platform for revealing the relationship between its spatial structure and properties. However, organic crystal polymorphism can be commonly obtained by growing crystals in different solvents or at different temperatures. This study reports a compound named p-An-Br containing carbazole and anthracene chromophores with three multiple stimulus modulated crystal polymorphs with green, yellow and red fluorescence, respectively. Interestingly, switching of p-An-Br between crystal G, crystal Y and crystal R can be achieved through the uptake and release of methanol using different stimuli, which shows dynamically adjustable luminescent colors. Significantly, structure-property investigations via the in-depth analysis of molecular conformations and frameworks of the polymorphic crystals demonstrate that the diverse conformations and abundant noncovalent interactions have a predominant impact on emission behavior. Consequently, the crystals R can be used for the highly sensitive and specific sensing of methanol with a detection limit of 39.35 ppm. This study not only provides a new strategy for crystal polymorphism, but also develops an effective method for the detection of methanol.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Mingxia Feng
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Caihong Shi
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Mengqiu Qian
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Xiurong Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Runying He
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Xian Meng
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Yonggang Shi
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Qiue Cao
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
| | - Liyan Zheng
- Key Laboratory of Medicinal Chemistry for Natural Resource of Yunnan University, Ministry of Education, School of Chemical Science and Technology, Yunnan University Kunming 650091 P. R. China
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Shi L, Song J, Wang Y, Fu H, Patrick-Iwuanyanwu K, Zhang L, Lawrie CH, Zhang J. Applications of Carbon-Based Multivariable Chemical Sensors for Analyte Recognition. NANO-MICRO LETTERS 2025; 17:246. [PMID: 40316837 PMCID: PMC12048389 DOI: 10.1007/s40820-025-01741-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2025] [Accepted: 03/19/2025] [Indexed: 05/04/2025]
Abstract
Over recent decades, carbon-based chemical sensor technologies have advanced significantly. Nevertheless, significant opportunities persist for enhancing analyte recognition capabilities, particularly in complex environments. Conventional monovariable sensors exhibit inherent limitations, such as susceptibility to interference from coexisting analytes, which results in response overlap. Although sensor arrays, through modification of multiple sensing materials, offer a potential solution for analyte recognition, their practical applications are constrained by intricate material modification processes. In this context, multivariable chemical sensors have emerged as a promising alternative, enabling the generation of multiple outputs to construct a comprehensive sensing space for analyte recognition, while utilizing a single sensing material. Among various carbon-based materials, carbon nanotubes (CNTs) and graphene have emerged as ideal candidates for constructing high-performance chemical sensors, owing to their well-established batch fabrication processes, superior electrical properties, and outstanding sensing capabilities. This review examines the progress of carbon-based multivariable chemical sensors, focusing on CNTs/graphene as sensing materials and field-effect transistors as transducers for analyte recognition. The discussion encompasses fundamental aspects of these sensors, including sensing materials, sensor architectures, performance metrics, pattern recognition algorithms, and multivariable sensing mechanism. Furthermore, the review highlights innovative multivariable extraction schemes and their practical applications when integrated with advanced pattern recognition algorithms.
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Affiliation(s)
- Lin Shi
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China
| | - Jian Song
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China.
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China.
| | - Yu Wang
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China
| | - Heng Fu
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China
| | | | - Lei Zhang
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China.
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China.
| | - Charles H Lawrie
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China.
- Biogipuzkoa Health Research Institute, San Sebastian, 20014, Spain.
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain.
- Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DU, UK.
| | - Jianhua Zhang
- School of Microelectronics, Shanghai University, Shanghai, 201800, People's Republic of China.
- Sino-Swiss Institute of Advanced Technology (SSIAT), Shanghai University, Shanghai, 201899, People's Republic of China.
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6
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Choi E, Jeong TI, Nguyen TM, Gliserin A, Lee J, Bak GH, Kim S, Kim S, Oh JW, Kim S. Identification of Gas Mixture Components with Multichannel Hierarchical Analysis of Time-Resolved Hyperspectral Data. ACS Sens 2025; 10:3003-3012. [PMID: 40127313 PMCID: PMC12038880 DOI: 10.1021/acssensors.5c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2025] [Revised: 03/11/2025] [Accepted: 03/18/2025] [Indexed: 03/26/2025]
Abstract
Chemical vapor sensors are essential for various fields, including medical diagnostics and environmental monitoring. Notably, the identification of components in unknown gas mixtures has great potential for noninvasive diagnosis of diseases such as lung cancer. However, current gas identification techniques, despite the development of electronic nose-based sensor platforms, still lack sufficient classification accuracy for mixed gases. In our previous study, we introduced multichannel hierarchical analysis using a time-resolved hyperspectral system to address the spectral ambiguity of conventional RGB sensor-based colorimetric e-noses. Here, we demonstrate the identification of mixed gas components through time-resolved line hyperspectral measurements with an eight-colorimetric sensor array that uses genetically engineered M13 bacteriophages as gas-selective colorimetric sensors. The time-dependent spectral variations induced by mixed gas in the different colorimetric sensors are converted into a hyperspectral three-dimensional (3D) data cube. For efficient machine learning classification, the data cube was converted into a multichannel spectrogram by applying a novel data processing method, including dimensionality reduction and a block average filter to reduce high-dimensional complexity and improve the signal-to-noise ratio. A convolution filter was then used for hierarchical analysis of the multichannel spectrogram, effectively capturing the complex gas-induced spectral patterns and temporal dynamics. Our study demonstrates a classification accuracy of 93.9% for pure and mixed gases of acetone, ethanol, and xylene at a low concentration of 2 ppm.
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Affiliation(s)
- Eunji Choi
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
| | - Tae-In Jeong
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
| | - Thanh Mien Nguyen
- BK21
FOUR Education and Research Division for Energy Convergence Technology, Pusan National University, Busan 46241, Republic of Korea
- Bio-IT
Fusion Technology Research Institute, Pusan
National University, Busan 46241, Republic
of Korea
| | - Alexander Gliserin
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
- Department
of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Republic
of Korea
| | - Jimin Lee
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
| | - Gyeong-Ha Bak
- BK21
FOUR Education and Research Division for Energy Convergence Technology, Pusan National University, Busan 46241, Republic of Korea
- Bio-IT
Fusion Technology Research Institute, Pusan
National University, Busan 46241, Republic
of Korea
| | - San Kim
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
| | - Sehyeon Kim
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
| | - Jin-Woo Oh
- BK21
FOUR Education and Research Division for Energy Convergence Technology, Pusan National University, Busan 46241, Republic of Korea
- Bio-IT
Fusion Technology Research Institute, Pusan
National University, Busan 46241, Republic
of Korea
- Department
of Nano Fusion Technology Institute, Pusan
National University, Busan 46241, Republic
of Korea
| | - Seungchul Kim
- Department
of Cogno-Mechatronics Engineering, Pusan
National University, Busan 46241, Republic
of Korea
- Department
of Optics and Mechatronics Engineering, Pusan National University, Busan 46241, Republic
of Korea
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7
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Bulemo PM, Kim DH, Shin H, Cho HJ, Koo WT, Choi SJ, Park C, Ahn J, Güntner AT, Penner RM, Kim ID. Selectivity in Chemiresistive Gas Sensors: Strategies and Challenges. Chem Rev 2025; 125:4111-4183. [PMID: 40198852 DOI: 10.1021/acs.chemrev.4c00592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2025]
Abstract
The demand for highly functional chemical gas sensors has surged due to the increasing awareness of human health to monitor metabolic disorders or noncommunicable diseases, safety measures against harmful greenhouse and/or explosive gases, and determination of food freshness. Over the years of dedicated research, several types of chemiresistive gas sensors have been realized with appreciable sensitivities toward various gases. However, critical issues such as poor selectivity and sluggish response/recovery speeds continue to impede their widespread commercialization. Specifically, the mechanisms behind the selective response of some chemiresistive materials toward specific gas analytes remain unclear. In this review, we discuss state-of-the-art strategies employed to attain gas-selective chemiresistive materials, with particular emphasis on materials design, surface modification or functionalization with catalysts, defect engineering, material structure control, and integration with physical/chemical gas filtration media. The nature of material surface-gas interactions and the supporting mechanisms are elucidated, opening opportunities for optimizing the materials design, fine-tuning the gas sensing performance, and guiding the selection of the most appropriate materials for the accurate detection of specific gases. This review concludes with recommendations for future research directions and potential opportunities for further selectivity improvements.
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Affiliation(s)
- Peresi Majura Bulemo
- Department of Mechanical and Industrial Engineering, University of Dar es Salaam, P.O. Box 35131, Dar es Salaam, Tanzania
| | - Dong-Ha Kim
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hamin Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Hee-Jin Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
| | - Won-Tae Koo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
| | - Seon-Jin Choi
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
- Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Chungseong Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
| | - Andreas T Güntner
- Human-Centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United States
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, Daejeon 34141, Republic of Korea
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8
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Luo W, Dai F, Liu Y, Wang X, Li M. Pulse-driven MEMS gas sensor combined with machine learning for selective gas identification. MICROSYSTEMS & NANOENGINEERING 2025; 11:72. [PMID: 40268887 PMCID: PMC12019587 DOI: 10.1038/s41378-025-00934-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2024] [Revised: 02/28/2025] [Accepted: 03/19/2025] [Indexed: 04/25/2025]
Abstract
The sensing and identification of trace gases are essential for ensuring chemical safety and protecting human health. This study introduces a low-power electronic nose system that utilizes a single sensor driven by repeated pulsed power inputs, offering a viable alternative to conventional sensor array-based methods. The sensor's compact design and suspended architecture facilitate a rapid thermal response, effectively decoupling the influences of temperature, physisorption, and charge exchange on the conductivity of the sensing material. This mechanism generates distinct gas sensing responses, characterized by alternating dual responses within a single time period. The unique dynamics of the dual signals, which vary with gas type and concentration, enable precise identification of multiple gas species using machine learning (ML) algorithms. Microfabricated through wafer-level batch processing, our innovative electronic nose system holds significant potential for battery-powered mobile devices and IoT-based monitoring applications.
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Affiliation(s)
- Wenxin Luo
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, 510006, China
| | - Fa Dai
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yijun Liu
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, 510006, China
| | - Xin Wang
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, 510006, China
| | - Mingjie Li
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, 510006, China.
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9
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Sun Y, Cui J, Fu S, Sun S, Qian K, Luo Z, Han D. Rare Earth-Driven Photogenerated Charge Separation in SnO 2@Y 2O 3 Heterojunctions for Enhanced H 2S Sensing at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2025; 17:15948-15958. [PMID: 40016912 DOI: 10.1021/acsami.4c19811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2025]
Abstract
Although conventional heat-activated gas sensors effectively detect air pollutants such as highly toxic H2S and NO2, their high operating temperatures increase the risk of explosions in flammable gas environments, limiting their applications. In this study, we report a novel composite material of SnO2@Y2O3 synthesized using an electrospinning-solvothermal method. This is the first demonstration of gas sensing at room temperature using SnO2@Y2O3 heterostructures under low-power ultraviolet light. This heterostructure has excellent H2S sensing performance, thanks to its rich adsorbed oxygen species [21.01%, significantly higher than pure SnO2 (11.55%)] and enhanced interfacial charge transfer. The introduction of the Y element greatly reduces the photogenerated electron-hole recombination efficiency of the composite material under UV light. Furthermore, the SnO2@Y2O3 sensor's response to 10 ppm of H2S under UV irradiation is 318.3% higher than that of the pure SnO2 sensor. In addition, the sensor has excellent selectivity to H2S due to the interface potential barrier between the two, and the response is at least 6.8 times that of other interfering gases. DFT calculations further show that the adsorption energy of H2S on the SnO2@Y2O3 heterojunction is significantly higher than that on the SnO2 (110) surface. In addition, the electron transfer amount of H2S on the SnO2@Y2O3 heterojunction (0.385 e) is 218.2% higher than that on the SnO2 (110) surface (0.121 e). This work proposes a new strategy for improving the performance of gas sensors by introducing element Y and light excitation, providing a low-temperature, safe, and highly selective sensing platform for toxic gases such as H2S.
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Affiliation(s)
- Yanhui Sun
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, China
- School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jiawen Cui
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, China
| | - Shouhang Fu
- Faculty of Medicine, Dalian University of Technology, Dalian 116024, China
| | - Shupeng Sun
- School of Integrated Circuits, Dalian University of Technology, Dalian 116024, China
| | - Kehan Qian
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, China
| | - Zhixin Luo
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, China
| | - Dongye Han
- College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600, China
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10
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Huang D, Fu X, Wang K, Zheng Z, Zhang L, Ye Z, Jiang J, Han ZK, Zhu L. Enhanced Oxygen Vacancy Formation in Pt-WO 3 via W-OH Bond Cleavage Using Water-Based One-Step Electrospinning for High-Performance Gas Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2025; 41:6152-6163. [PMID: 40014765 DOI: 10.1021/acs.langmuir.4c05115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2025]
Abstract
Oxygen vacancies play a crucial role in charge transport and surface states in semiconductor metal oxides, significantly influencing various research fields, such as photocatalysis and gas sensor. Developing effective strategies to generate oxygen vacancies and thereby enhance device performance is highly desirable. In this study, we proposed a water-based one-step electrospinning method to introduce hydroxyl groups, leading to the synthesis of Pt-decorated WO3 nanofibers (Pt-WO3(H2O)) with increased oxygen vacancies. Density functional theory calculations revealed that the dissociation energy of W-OH is lower than that of the W-O bonds, promoting the formation of oxygen vacancies via W-OH bond cleavage. These vacancies reduced the adsorption energy of acetone on the WO3 surface, enhancing surface interactions. Consequently, the Pt-WO3(H2O) sensor exhibited an ultrahigh response of 82 to 1.8 ppm acetone at 300 °C, which was about 1 order of magnitude higher than the one fabricated by conventional electrospinning. These findings indicate that water-based electrospinning is an effective technique for generating oxygen vacancies in metal oxide nanofibers. Our high-performance acetone sensor, capable of detecting low concentrations, holds great potential for applications in noninvasive health screening.
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Affiliation(s)
- Denghui Huang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Xiaolan Fu
- Department of Physics, School of Physical Science and Technology, Ningbo University, Ningbo 315211, P. R. China
| | - Kaixin Wang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Zicheng Zheng
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Liyuan Zhang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Zhizhen Ye
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Jie Jiang
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Zhong-Kang Han
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
| | - Liping Zhu
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, P. R. China
- Zhejiang Provincial Engineering Research Center of Oxide Semiconductors for Environmental and Optoelectronic Applications, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
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11
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Kwon K, Lee YJ, Jung Y, Soltis I, Na Y, Romero L, Kim MC, Rodeheaver N, Kim H, Lee C, Ko SH, Lee J, Yeo WH. Smart filtering facepiece respirator with self-adaptive fit and wireless humidity monitoring. Biomaterials 2025; 314:122866. [PMID: 39342918 DOI: 10.1016/j.biomaterials.2024.122866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 09/12/2024] [Accepted: 09/26/2024] [Indexed: 10/01/2024]
Abstract
The widespread emergence of airborne diseases has transformed our lifestyle, and respirators have become an essential part of daily life. Nevertheless, finding respirators that fit well can be challenging due to the variety of human facial sizes and shapes, potentially compromising protection. In addition, the current respirators do not inform the user of the air quality in case of continuous long-term use. Here, we introduce a smart filtering facepiece respirator incorporating a humidity sensor and pressure sensory feedback for self-fit adjusting and maintaining an adequate fit. The humidity detection sensor uses laser-induced graphene, and the pressure sensor array based on the dielectric elastomeric sponge monitors the respirator contact on the user's face, providing real-time closed-loop feedback and the wearer's fitting status. Those membrane sensors show outstanding performance, such as a low humidity hysteresis of 0.131 % and a precise pressure detection limit of 0.23 ± 0.02 kPa. As a result of the self-fit adjusting mode, the overall fit factor is increased by 10 % on average compared to the commercial respirator. This significant improvement in fit factor, coupled with the innovative design, has the potential to develop next-generation facepiece respirators as essential personal protective equipment.
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Affiliation(s)
- Kangkyu Kwon
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yoon Jae Lee
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yeongju Jung
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Ira Soltis
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yewon Na
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Lissette Romero
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; School of Industrial Design, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Myung Chul Kim
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Nathan Rodeheaver
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Hodam Kim
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Chaewon Lee
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seung-Hwan Ko
- Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea; Institute of Advanced Machinery and Design (SNU-IAMD), Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.
| | - Jinwoo Lee
- Department of Mechanical, Robotics, and Energy Engineering, Dongguk University, 30 Pildong-ro 1-gil, Jung-gu, Seoul, 04620, South Korea.
| | - Woon-Hong Yeo
- Wearable Intelligent Systems and Healthcare Center (WISH Center), Institute for Matter and Systems, Georgia Institute of Technology, Atlanta, GA, 30332, USA; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA; Wallace H. Coulter Department of Biomedical Engineering, Georgia Tech and Emory University School of Medicine, Atlanta, GA, 30332, USA; Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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12
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Li Y, Li Y, Shi Y, Gao J, Lu J, Wang C, Chang J, Wang Z, Yang Y, Yang B, Feng L, Fu Q, Bao X, Wu ZS. Single cobalt atoms with unconventional dynamic coordination mechanism for selective ammonia sensor. Natl Sci Rev 2025; 12:nwaf031. [PMID: 39974516 PMCID: PMC11837343 DOI: 10.1093/nsr/nwaf031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2024] [Accepted: 01/22/2025] [Indexed: 02/21/2025] Open
Abstract
Developing gas sensors that can simultaneously achieve high sensitivity and selectivity for the detection of a single-type gas remains a significant challenge. Herein we demonstrate cobalt (Co) single atoms with an unconventional dynamically changing coordination structure that could be used as NH3-sensing material with superior sensitivity and selectivity. According to the steric effect of 2-methylimidazole (2MI) molecules and carbonyl groups on graphene, the Co single atom is evolved into a bidentate coordinated structure (Co-2MI-G). In-situ characterization and theoretical simulation reveal that the sensing mechanism of Co-2MI-G is the specific chemical adsorption between unsaturated coordinated Co single atoms and NH3 molecules, causing a reversible switching of coordination number from 2 to 4, a valence state transfer from Co2+ to Co3+ of Co single atoms, and a band-gap width from 0.14 eV to 0.50 eV. Consequently, the Co-2MI-G-based gas sensor presents a sensing response of 67.598% for 1 ppm NH3 and a limit of detection of 2.67 ppb, at least 1.8 times higher than that of state-of-the-art NH3 sensors, together with robust stability and reproducibility. This work provides an innovative perspective on utilizing single atoms for ultra-selective gas sensing by coordination regulation.
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Affiliation(s)
- Yuejiao Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yaguang Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Research Center for Solar Driven Carbon Neutrality, Engineering Research Center of Zero-Carbon Energy Buildings and Measurement Techniques, Ministry of Education, The College of Physics Science and Technology, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Yushu Shi
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianmei Gao
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jianmin Lu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chao Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junyu Chang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhenming Wang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Environmental Research Institute, Shandong University, Qingdao 266237, China
| | - Yangyue Yang
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bing Yang
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian 116023, China
| | - Liang Feng
- Department of Instrumentation and Analytical Chemistry, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qiang Fu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xinhe Bao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhong-Shuai Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian 116023, China
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13
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Liang H, Zhu Y, Zhao Z, Tang Z, Niu Y, Zhang D, Wang Y, Gong W. Enhanced room temperature ammonia gas sensing based on a multichannel PSS-functionalized graphene/PANI network. Analyst 2025; 150:669-679. [PMID: 39831568 DOI: 10.1039/d4an01488j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2025]
Abstract
Disordered polymerization of polymers widens the polymerization degree distribution, which leads to uncontrollable thickness and significantly weakens their sensing performance. Herein, poly(sodium p-styrenesulfonate)-functionalized reduced graphene oxide (PSS-rGO) with multichannel chain structures coated with thin polyaniline layer (PSS-rGO/PANI) nanocomposites was synthesized via a facile interfacial polymerization route. The morphology and microstructure of the PSS-rGO/PANI nanocomposites were characterized using Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The flexible PSS-rGO/PANI-2 sensor exhibits excellent room temperature NH3 sensing performance, including a higher sensitivity of 362% and a faster response/recovery time of 23/158 s towards 100 ppm NH3 than other PSS-rGO/PANI nanocomposites. In addition, the flexible PSS-rGO/PANI-2 sensor has a low detection limit of 10 ppb, superior selectivity, repeatability, and long-term stability over 75 days. Remarkably, the flexible PSS-rGO/PANI-2 sensor shows excellent humidity resistance (196 ± 3%, 50 ppm) even at a high relative humidity of 80%. The gas sensing mechanism was systematically investigated through high protonation states and strong π-π conjugation of PSS-rGO/PANI. This work provides a convenient method to construct multichannel thin polyaniline layer-coated graphene nanocomposites and promotes their application in flexible wearable electronics.
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Affiliation(s)
- Hongping Liang
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
| | - Ye Zhu
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
| | - Zhenting Zhao
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
| | - Zilun Tang
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, 516007, China
| | - Yue Niu
- School of Physical Sciences, Great Bay University, Dongguan 523000, P. R. China
| | - Duoduo Zhang
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
| | - Yao Wang
- Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China.
| | - Weiping Gong
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, 516007, China.
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14
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Miao L, Song P, Xue Y, Hou Z, Hasegawa T, Okawa A, Goto T, Seo Y, Maezono R, Sekino T, Yin S. Novel Selectivity: Target of Gas Sensing Defined by Behavior. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2025; 37:e2413023. [PMID: 39703090 PMCID: PMC11837890 DOI: 10.1002/adma.202413023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2024] [Revised: 11/26/2024] [Indexed: 12/21/2024]
Abstract
Traditional selectivity of gas sensors determined by the magnitude of the response value has significant limitations. The distinctive inversion sensing behavior not only defies the traditional sensing theory but also provides insight into defining selectivity. Herein, the novel definition of selectivity is established in a study with VO2(M1). The sensing behavior of VO2(M1) is investigated after its synthesis conditions optimization by machine learning. In gases of the same nature, VO2(M1) shows remarkably selective for NH3 marked with unique resistance increase behavior. Such anomalous behavior is attributed to the formation of the Schottky junction between VO2(M1) and the electrode. The "work function-electron affinity" relation is summarized as the selectivity coefficient, a parameter for predicting the selectivity of the sensing material effectively.
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Affiliation(s)
- Lei Miao
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
| | - Peng Song
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
- School of Information ScienceJAISTIshikawa923–1292Japan
| | - Yibei Xue
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
| | - Zhufeng Hou
- State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China
| | - Takuya Hasegawa
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
| | - Ayahisa Okawa
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
| | - Tomoyo Goto
- SANKENOsaka UniversityIbarakiOsaka567‐0047Japan
- Institute for Advanced Co‐Creation StudiesOsaka University1‐1 YamadaokaSuitaOsaka565–0871Japan
| | | | - Ryo Maezono
- School of Information ScienceJAISTIshikawa923–1292Japan
| | | | - Shu Yin
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)Tohoku UniversitySendai980–8577Japan
- Advanced Institute for Materials Research (WPI‐AIMR)Tohoku UniversitySendai980–8577Japan
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15
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Wang T, Tao W, Kou X, Zhao L, Sun P, Lu G. Bi 2Sn 2O 7 Overlayer Assists Bilayer Chemiresistor in Humidity-Independent and Highly Selective Detection of Expiratory Acetone. ACS Sens 2024; 9:6717-6727. [PMID: 39680889 DOI: 10.1021/acssensors.4c02378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2024]
Abstract
Constructing a bilayer structure has not been reported as a method to mitigate the adverse effect of water poisoning on oxide chemiresistors while simultaneously enhancing gas selectivity and sensitivity. To address this challenge, pyrochlore-Bi2Sn2O7 has been first utilized as an overlayer on a ZnO sensing layer for constructing a bilayer acetone chemiresistor, leading to remarkable improvement in the performance for trace-level (500 p-p-b) acetone detection under high humidity (80% relative humidity). In addition, owing to the catalytic predecompositions of ethanol across the overlayer, an outstanding acetone gas selectivity (Sacetone/Sethanol = 2.9) has been achieved, with a more than 4-fold improvement compared with monolayer ZnO chemiresistor (Sacetone/Sethanol = 0.7). More significantly, comprehensive experiments coupled with in situ characterizations have verified the generation of hydroxyl radicals (•OH) on the Bi2Sn2O7 overlayer. These radicals are capable of enhancing the kinetics between •OH and acetone, reducing the activation energy required for the gas sensing reaction, and thus leading to an unexpected phenomenon of enhanced acetone sensitivity under high humid conditions (Sacetone at 80% RH > Sacetone at 5% RH). These demonstrations offer crucial insight into the precise design of highly efficient overlayers for breath sensing.
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Affiliation(s)
- Tianshuang Wang
- State Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Wei Tao
- State Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Xueying Kou
- School of Electronic Information Engineering, Changchun University of Science and Technology, Changchun 13000, China
| | - Liupeng Zhao
- State Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Peng Sun
- State Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Geyu Lu
- State Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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16
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Wang L, Sun T, Zhao X, Li L, Guo Z, Xiong C, Yin Y, Hu Y, Zou Y, Huang J. Electrophilic-Attack Doped Organic Field-Effect Transistors for Ultrasensitive and Selective Hydrogen Sulfide Detection. ACS APPLIED MATERIALS & INTERFACES 2024; 16:68103-68111. [PMID: 39623748 DOI: 10.1021/acsami.4c15971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2024]
Abstract
Doping of organic semiconductors (OSCs) has been developed as an effective means of modulating the density and transfer efficiency of charge carriers; however, realization of effective doping to tailor the chemical sensing performance of OSC-based sensors still remains not explored extensively. In addition, the application of OSCs in chemical sensors is usually limited by the poor stability and low selectivity. Herein, flexible donor-acceptor copolymer-based organic field-effect transistor (OFET) chemical sensors are designed via an electrophilic attack doping strategy. The p-dopant trityl tetrakis(pentafluorophenyl) borate (TrTPFB) can be effectively doped into the host molecular N-alkyl-diketopyrrolo-pyrroledithienylthieno[3,2-b]thiophene (DPPDTT). It is simple to alter the doping efficiency and film thickness (ca. 5.5-17.7 nm) by adjusting the proportion and concentration of guest-host molecules, which endows facile carrier mobility and enhanced sensing sensitivity modulation toward reducing gases at room temperature. Particularly, 1.0 mol% TrTPFB-doped DPPDTT achieved the highest response to H2S gas, including ultralow detection concentration (0.5 ppb), excellent selectivity, high humidity stability, and long-term storage stability. This work can provide a new strategy for the potential applications of the organic electronic sensing devices.
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Affiliation(s)
- Lu Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Tongrui Sun
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Xinglei Zhao
- State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology, Beijing 102206, P. R. China
| | - Li Li
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Ziyi Guo
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Chonghao Xiong
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Yifeng Yin
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Yuanyuan Hu
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & International Science and Technology Innovation Cooperation Base for Advanced Display Technologies of Hunan Province, School of Physics and Electronics, Hunan University, Changsha 410082, P. R. China
| | - Yidong Zou
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
| | - Jia Huang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University, Tongji University, Shanghai 200434, P. R. China
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17
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Wu Z, Lv S, Xiao P, Salentijn GI, Cheng H, Li H, Sun J, Ye X, Sun B. Comprehensive analysis of risk factors (methanol, acetaldehyde and higher alcohols) in alcoholic beverages and their reduction strategies: GC-MS analysis and modified activated carbon adsorption and characterization. Food Chem 2024; 460:140461. [PMID: 39047481 DOI: 10.1016/j.foodchem.2024.140461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/23/2024] [Accepted: 07/12/2024] [Indexed: 07/27/2024]
Abstract
This study endeavors to examine the levels of risk factors in alcoholic beverages and propose mitigation strategies. GC-MS analysis was utilized to assess risk factors in various distilled-spirits. The content of such risk factors in spirits ranked as follows: vodka ≈ gin < baijiu < whiskey < brandy, and all were adhering to the Chinese national standard. Additionally, a method was refined to alleviate these risks, employing various reagents for activated carbon modification and evaluating their adsorption efficiency for risk factors reduction. Oxalic acid-modified activated carbon exhibited promising adsorption rates for risk factors with acceptable flavor compounds loss, rendering it a prospective solution for health hazard reduction. Characterization via SEM and nitrogen-adsorption-desorption was conducted on the optimal material, complemented by sensory experiments to optimize its application. This study offers valuable insights into the content of risk factors in alcoholic beverages, aiding in improving quality and safety of alcoholic beverages.
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Affiliation(s)
- Ziyang Wu
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China; College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Silei Lv
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China
| | - Peng Xiao
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China
| | - Gert Ij Salentijn
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands; Wageningen Food Safety Research, Wageningen University & Research, P.O Box 230, 6700 AE Wageningen, the Netherlands
| | - Huan Cheng
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Hehe Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China.
| | - Jinyuan Sun
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Baoguo Sun
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing Technology and Business University, Beijing 100048, China
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18
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Dinu DF, Oenen K, Schlagin J, Podewitz M, Grothe H, Loerting T, Liedl KR. How Vibrational Notations Can Spoil Infrared Spectroscopy: A Case Study on Isolated Methanol. ACS PHYSICAL CHEMISTRY AU 2024; 4:679-695. [PMID: 39634648 PMCID: PMC11613289 DOI: 10.1021/acsphyschemau.4c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 09/12/2024] [Accepted: 09/12/2024] [Indexed: 12/07/2024]
Abstract
Unraveling methanol's infrared spectrum has challenged spectroscopists for a century, with numerous loose ends still to be explored. We engage in this exploration based on experiments of isolating single methanol molecules in solid argon and neon matrices. We report infrared spectra of methanol in its natural isotopic composition and with partial and full deuteration. These experiments are accompanied by calculating wavenumbers involving anharmonicity and mode-coupling based on the vibrational configuration interaction approach. This allows for an unambiguous assignment of all fundamentals and resonances in the mid-infrared spectrum. An increasing degree of deuteration lifts resonances and aids in assigning bands uniquely. It also becomes evident that different notations typically used in chemistry or physics to describe molecular vibration from spectroscopy fail to describe the spectra appropriately. We highlight the shortcomings and suggest a more elaborate analysis using Sankey diagrams to unambiguously identify spectral features. Consequently, we demystify debated resonances occurring from various stretches and deformations of the methyl group.
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Affiliation(s)
- Dennis F. Dinu
- Institute
of Materials Chemistry, TU Wien, Getreidemarkt 9/165, Vienna 1060, Austria
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80, Innsbruck 6020, Austria
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52, Innsbruck 6020, Austria
| | - Kemal Oenen
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80, Innsbruck 6020, Austria
| | - Jonas Schlagin
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80, Innsbruck 6020, Austria
| | - Maren Podewitz
- Institute
of Materials Chemistry, TU Wien, Getreidemarkt 9/165, Vienna 1060, Austria
| | - Hinrich Grothe
- Institute
of Materials Chemistry, TU Wien, Getreidemarkt 9/165, Vienna 1060, Austria
| | - Thomas Loerting
- Department
of Physical Chemistry, University of Innsbruck, Innrain 52, Innsbruck 6020, Austria
| | - Klaus R. Liedl
- Department
of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80, Innsbruck 6020, Austria
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19
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D'Andria M, Elias Abi‐Ramia Silva T, Consogno E, Krumeich F, Güntner AT. Metastable CoCu 2O 3 Nanocrystals from Combustion-Aerosols for Molecular Sensing and Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2408888. [PMID: 39252677 PMCID: PMC11586830 DOI: 10.1002/adma.202408888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 08/21/2024] [Indexed: 09/11/2024]
Abstract
Metastable nanostructures are kinetically trapped in local energy minima featuring intriguing surface and material properties. To unleash their potential, there is a need for non-equilibrium processes capable of stabilizing a large range of crystal phases outside thermodynamic equilibrium conditions by closely and flexibly controlling atomic reactant composition, spatial temperature distribution and residence time. Here, the capture of metastable pseudo-binary metal oxides at room temperature is demonstrated with scalable combustion-aerosol processes. By a combination of X-ray diffraction, electron microscopy and on-line flame characterization, the occurrence of metastable CoCu2O3 is investigated with controlled crystal size (4-16 nm) over thermodynamically stable CuO and Co3O4. Immediate practical impact is demonstrated by exceptional sensing and stable catalytic performance for air pollutant detection (e.g., 15 parts-per-billion benzene) shown for, at least, 21 days. This approach can be extended to various binary, ternary and high entropy oxides with even more components. Also, secondary phases can be loaded on such metastable nanocrystals to access novel materials promising for actuators, energy storage or solar cells.
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Affiliation(s)
- Matteo D'Andria
- Human‐Centered Sensing LaboratoryDepartment of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
| | - Tiago Elias Abi‐Ramia Silva
- Human‐Centered Sensing LaboratoryDepartment of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
| | - Edoardo Consogno
- Human‐Centered Sensing LaboratoryDepartment of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic ChemistryDepartment of Chemistry and Applied BiosciencesETH ZurichZurichCH‐8093Switzerland
| | - Andreas T. Güntner
- Human‐Centered Sensing LaboratoryDepartment of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
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20
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Skowronkova N, Adamek M, Zvonkova M, Matyas J, Adamkova A, Dlabaja S, Buran M, Sevcikova V, Mlcek J, Volek Z, Cernekova M. Optimizing Low-Cost Gas Analysis with a 3D Printed Column and MiCS-6814 Sensor for Volatile Compound Detection. SENSORS (BASEL, SWITZERLAND) 2024; 24:6594. [PMID: 39460075 PMCID: PMC11511080 DOI: 10.3390/s24206594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2024] [Revised: 10/08/2024] [Accepted: 10/11/2024] [Indexed: 10/28/2024]
Abstract
This paper explores an application of 3D printing technology on the food industry. Since its inception in the 1980s, 3D printing has experienced a huge rise in popularity. This study uses cost-effective, flexible, and sustainable components that enable specific features of certain gas chromatography. This study aims to optimize the process of gas detection using a 3D printed separation column and the MiCS-6814 sensor. The principle of the entire device is based on the idea of utilizing a simple capillary chromatographic column manufactured by 3D printing for the separation of samples into components prior to their measurement using inexpensive chemiresistive sensors. An optimization of a system with a 3D printed PLA block containing a capillary, a mixing chamber, and a measuring chamber with a MiCS-6814 sensor was performed. The optimization distributed the sensor output signal in the time domain so that it was possible to distinguish the peak for the two most common alcohols, ethanol and methanol. The paper further describes some optimization types and their possibilities.
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Affiliation(s)
- Nela Skowronkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic; (N.S.); (M.Z.); (A.A.); (V.S.)
| | - Martin Adamek
- Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic; (M.A.); (S.D.)
| | - Magdalena Zvonkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic; (N.S.); (M.Z.); (A.A.); (V.S.)
| | - Jiri Matyas
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida Tomase Bati 5678, 760 01 Zlin, Czech Republic;
| | - Anna Adamkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic; (N.S.); (M.Z.); (A.A.); (V.S.)
| | - Stepan Dlabaja
- Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic; (M.A.); (S.D.)
| | - Martin Buran
- Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic;
| | - Veronika Sevcikova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic; (N.S.); (M.Z.); (A.A.); (V.S.)
| | - Jiri Mlcek
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic; (N.S.); (M.Z.); (A.A.); (V.S.)
| | - Zdenek Volek
- Department of Nutritional Physiology and Animal Product Quality, Institute of Animal Science, Pratelstvi 815, 104 00 Prague, Czech Republic;
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic
| | - Martina Cernekova
- Department of Fat, Surfactant and Cosmetics Technology, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova, 275, 760 01 Zlin, Czech Republic;
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21
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Sawatmuenwai P, Kaewket K, Ngamchuea K. Electrochemical Analysis of Methanol with Nafion-Coated Copper Oxide Nanoparticles. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2024; 2024:1809578. [PMID: 39371604 PMCID: PMC11455596 DOI: 10.1155/2024/1809578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Accepted: 09/19/2024] [Indexed: 10/08/2024]
Abstract
This work introduces a Nafion-coated copper(I) oxide nanoparticle electrode (Nafion/Cu2O/GC) designed for the electrochemical detection of methanol (CH3OH). The responses of the composite material toward CH3OH were enhanced by the selective permeation of CH3OH through the hydrophilic channels of the Nafion membrane in combination with the electroactivity of Cu2O nanoparticles. The sensor displayed a linear detection range of 0.33-100 mM CH3OH with a sensitivity of 0.17 μA·mM-1 and a detection limit (3 s/m) of 0.10 mM. It exhibited excellent reproducibility with a relative standard deviation of <5%. The sensor's practical applicability was demonstrated through recovery studies on hand sanitizer samples, achieving ca. 100% recovery. The sensor was further used to elucidate CH3OH adsorption on activated carbon, revealing that the process conforms to the Langmuir isotherm model.
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Affiliation(s)
- Pantipa Sawatmuenwai
- School of ChemistryInstitute of ScienceSuranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima 30000, Thailand
| | - Keerakit Kaewket
- School of ChemistryInstitute of ScienceSuranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima 30000, Thailand
| | - Kamonwad Ngamchuea
- School of ChemistryInstitute of ScienceSuranaree University of Technology, 111 University Avenue, Suranaree, Muang, Nakhon Ratchasima 30000, Thailand
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22
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Wang W, Huang T, Cao Z, Zhu X, Sun Y, Dong F. Surface Defect-Induced Specific Catalysis Activates 100% Selective Sensing toward Amine Gases at Room Temperature. ACS NANO 2024; 18:23205-23216. [PMID: 39146530 DOI: 10.1021/acsnano.4c05801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Achieving selective sensing toward target volatile organic compound gases is of vital importance in the fields of air quality assessment, food freshness evaluation, and diagnosis of patients via exhaled breath. However, chemiresistive sensors that exhibit specificity like biological enzymes in a complex environment are rare. Herein, we developed a strategy of optimizing oxygen vacancy structures in tin oxides to induce specific catalysis, activating 100% selective sensing toward amine gases at room temperature. In situ technologies and theoretical calculations reveal that the "donor-receptor" coordination between nitrogen atoms from amine molecules and bridging oxygen vacancies (OVBri)-induced electron-deficient center is the essence of specific catalysis and provides the bridge from the surface oxidation reaction to electrophysical characteristics evolution, which allows the sensor to exhibit amine-specific sensing behavior, even in gas mixtures. Moreover, OVBri enhances the selectivity by enabling a room-temperature sensing pathway where lattice oxygens participate in catalytic oxidation for amine molecules, resulting in record-high sensing values: 19,938.92 toward 100 ppm of triethylamine, 15,236.78 toward trimethylamine, and 123.41 toward diethylamine. Our findings illustrate the feasibility of designing specific active sites through defect engineering and can contribute to the advancement of highly selective sensors based on catalytic processes.
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Affiliation(s)
- Wu Wang
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Taobo Huang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China
| | - Zhengmao Cao
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
| | - Xiuping Zhu
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China
| | - Yanjuan Sun
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, P. R. China
| | - Fan Dong
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, P. R. China
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23
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Lv W, Yang J, Xu Q, Mehrez JAA, Shi J, Quan W, Luo H, Zeng M, Hu N, Wang T, Wei H, Yang Z. Wide-range and high-accuracy wireless sensor with self-humidity compensation for real-time ammonia monitoring. Nat Commun 2024; 15:6936. [PMID: 39138176 PMCID: PMC11322651 DOI: 10.1038/s41467-024-51279-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 07/29/2024] [Indexed: 08/15/2024] Open
Abstract
Real-time and accurate biomarker detection is highly desired in point-of-care diagnosis, food freshness monitoring, and hazardous leakage warning. However, achieving such an objective with existing technologies is still challenging. Herein, we demonstrate a wireless inductor-capacitor (LC) chemical sensor based on platinum-doped partially deprotonated-polypyrrole (Pt-PPy+ and PPy0) for real-time and accurate ammonia (NH3) detection. With the chemically wide-range tunability of PPy in conductivity to modulate the impedance, the LC sensor exhibits an up-to-180% improvement in return loss (S11). The Pt-PPy+ and PPy0 shows the p-type semiconductor nature with greatly-manifested adsorption-charge transfer dynamics toward NH3, leading to an unprecedented NH3 sensing range. The S11 and frequency of the Pt-PPy+ and PPy0-based sensor exhibit discriminative response behaviors to humidity and NH3, enabling the without-external-calibration compensation and accurate NH3 detection. A portable system combining the proposed wireless chemical sensor and a handheld instrument is validated, which aids in rationalizing strategies for individuals toward various scenarios.
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Affiliation(s)
- Wen Lv
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jianhua Yang
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China.
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Qingda Xu
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jaafar Abdul-Aziz Mehrez
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jia Shi
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Wenjing Quan
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hanyu Luo
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Min Zeng
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
| | - Nantao Hu
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Tao Wang
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hao Wei
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China
- Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi Yang
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai, China.
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24
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Gohel VR, Chetyrkina M, Gaev A, Simonenko NP, Simonenko TL, Gorobtsov PY, Fisenko NA, Dudorova DA, Zaytsev V, Lantsberg A, Simonenko EP, Nasibulin AG, Fedorov FS. Multioxide combinatorial libraries: fusing synthetic approaches and additive technologies for highly orthogonal electronic noses. LAB ON A CHIP 2024; 24:3810-3825. [PMID: 39016307 DOI: 10.1039/d4lc00252k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
This study evaluates the performance advancement of electronic noses, on-chip engineered multisensor systems, exploiting a combinatorial approach. We analyze a spectrum of metal oxide semiconductor materials produced by individual methods of liquid-phase synthesis and a combination of chemical deposition and sol-gel methods with hydrothermal treatment. These methods are demonstrated to enable obtaining a fairly wide range of nanomaterials that differ significantly in chemical composition, crystal structure, and morphological features. While synthesis routes foster diversity in material properties, microplotter printing ensures targeted precision in making on-chip arrays for evaluation of a combinatorial selectivity concept in the task of organic vapor, like alcohol homologs, acetone, and benzene, classification. The synthesized nanomaterials demonstrate a high chemiresistive response, with a limit of detection beyond ppm level. A specific combination of materials is demonstrated to be relevant when the number of sensors is low; however, such importance diminishes with an increase in the number of sensors. We show that on-chip material combinations could favor selectivity to a specific analyte, disregarding the others. Hence, modern synthesis methods and printing protocols supported by combinatorial analysis might pave the way for fabricating on-chip orthogonal multisensor systems.
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Affiliation(s)
- Vishalkumar Rajeshbhai Gohel
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Str, Moscow, 121205, Russian Federation.
| | - Margarita Chetyrkina
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Str, Moscow, 121205, Russian Federation.
| | - Andrey Gaev
- Bauman Moscow State Technical University, 5/1 Baumanskaya 2-ya Str, Moscow, 105005, Russian Federation
| | - Nikolay P Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Tatiana L Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Philipp Yu Gorobtsov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Nikita A Fisenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Darya A Dudorova
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Valeriy Zaytsev
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Str, Moscow, 121205, Russian Federation.
| | - Anna Lantsberg
- Bauman Moscow State Technical University, 5/1 Baumanskaya 2-ya Str, Moscow, 105005, Russian Federation
| | - Elizaveta P Simonenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, 31 Leninsky pr, Moscow, 119991, Russian Federation
| | - Albert G Nasibulin
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Str, Moscow, 121205, Russian Federation.
| | - Fedor S Fedorov
- Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, 3 Nobel Str, Moscow, 121205, Russian Federation.
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25
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Kim T, Kim Y, Cho W, Kwak JH, Cho J, Pyeon Y, Kim JJ, Shin H. Ultralow-Power Single-Sensor-Based E-Nose System Powered by Duty Cycling and Deep Learning for Real-Time Gas Identification. ACS Sens 2024; 9:3557-3572. [PMID: 38857120 DOI: 10.1021/acssensors.4c00471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
This study presents a novel, ultralow-power single-sensor-based electronic nose (e-nose) system for real-time gas identification, distinguishing itself from conventional sensor-array-based e-nose systems, whose power consumption and cost increase with the number of sensors. Our system employs a single metal oxide semiconductor (MOS) sensor built on a suspended 1D nanoheater, driven by duty cycling─characterized by repeated pulsed power inputs. The sensor's ultrafast thermal response, enabled by its small size, effectively decouples the effects of temperature and surface charge exchange on the MOS nanomaterial's conductivity. This provides distinct sensing signals that alternate between responses coupled with and decoupled from the thermally enhanced conductivity, all within a single time domain during duty cycling. The magnitude and ratio of these dual responses vary depending on the gas type and concentration, facilitating the early stage gas identification of five gas types within 30 s via a convolutional neural network (classification accuracy = 93.9%, concentration regression error = 19.8%). Additionally, the duty-cycling mode significantly reduces power consumption by up to 90%, lowering it to 160 μW to heat the sensor to 250 °C. Manufactured using only wafer-level batch microfabrication processes, this innovative e-nose system promises the facile implementation of battery-driven, long-term, and cost-effective IoT monitoring systems.
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Affiliation(s)
- Taejung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Yonggi Kim
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Wootaek Cho
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jong-Hyun Kwak
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jeonghoon Cho
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Youjang Pyeon
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jae Joon Kim
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Heungjoo Shin
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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26
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Tessore F, Pargoletti E, Di Carlo G, Albanese C, Soave R, Trioni MI, Marelli F, Cappelletti G. How the Interplay between SnO 2 and Zn(II) Porphyrins Impacts on the Electronic Features of Gaseous Acetone Chemiresistors. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39049749 DOI: 10.1021/acsami.4c05478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Herein, the integration of SnO2 nanoparticles with two Zn(II) porphyrins─Zn(II) 5,10,15,20-tetraphenylporphyrin (ZnTPP) and its perfluorinated counterpart, Zn(II) 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin (ZnTPPF20)─was investigated for the sensing of gaseous acetone at 120 °C, adopting three Zn-porphyrin/SnO2 weight ratios (1:4, 1:32, and 1:64). For the first time, we were able to provide evidence of the correlation between the materials' conductivity and these nanocomposites' sensing performances, obtaining optimal results with a 1:32 ratio for ZnTPPF20/SnO2 and showcasing a remarkable detection limit of 200 ppb together with a boosted sensing signal with respect to bare SnO2. To delve deeper, the combination of experimental data with density functional theory calculations unveiled an electron-donating behavior of both porphyrins when interacting with tin dioxide semiconductor, especially for the nonfluorinated one. The study suggested that the interplay between electrons injected, from the porphyrins' highest occupied molecular orbital to SnO2 conduction band, and the latter's available electronic states has a dramatic impact to boost the chemiresistive sensing. Indeed, we highlighted that the key lies in preventing the full saturation of SnO2 electronic states concomitantly increasing the materials' conductivity: in this respect, the best compromise turned out to be the perfluorinated porphyrin. A further corroboration of our findings was obtained by illuminating the sensors during measurements with light-emitting diode (LED) light. Actually, we demonstrated that it does not have any impact on improving the sensing behavior, most probably due to the electronic oversaturation and scattering caused by LED excitation in porphyrins. Lastly, the most effective hybrids (1:32 ratio) were physicochemically characterized, confirming the physisorption of the macrocycles onto the SnO2 surface. In conclusion, herein, we underscore the feasibility of customizing the porphyrin chemistry and porphyrin-to-SnO2 ratio to enhance the gaseous sensing of bare metal oxides, providing valuable insights for the engineering of highly performing light-free chemiresistors.
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Affiliation(s)
- Francesca Tessore
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Giusti 9, 50121 Florence, Italy
| | - Eleonora Pargoletti
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Giusti 9, 50121 Florence, Italy
| | - Gabriele Di Carlo
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Giusti 9, 50121 Florence, Italy
| | - Cecilia Albanese
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
| | - Raffaella Soave
- National Research Council of Italy, Institute of Chemical Sciences and Technologies "Giulio Natta", Golgi 19, 20133 Milan, Italy
| | - Mario Italo Trioni
- National Research Council of Italy, Institute of Chemical Sciences and Technologies "Giulio Natta", Golgi 19, 20133 Milan, Italy
| | - Federica Marelli
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
| | - Giuseppe Cappelletti
- Dipartimento di Chimica, Università degli Studi di Milano, Golgi 19, 20133 Milan, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Giusti 9, 50121 Florence, Italy
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27
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Zvonkova M, Adamek M, Skowronkova N, Dlabaja S, Matyas J, Jasso M, Adamkova A, Mlcek J, Salek RN, Buran M. Compact 3D-Printed Unit for Separation of Simple Gas Mixtures Combined with Chemiresistive Sensors. SENSORS (BASEL, SWITZERLAND) 2024; 24:4391. [PMID: 39001169 PMCID: PMC11244592 DOI: 10.3390/s24134391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/27/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024]
Abstract
Inexpensive chemiresistive sensors are often insufficiently selective as they are sensitive to multiple components of the gas mixture at the same time. One solution would be to insert a device in front of the sensor that separates the measured gas mixture and possibly isolates the unwanted components. This study focused on the fabrication and characterization of a compact unit, which was fabricated by 3D printing, for the separation and detection of simple gas mixtures. The capillary, the basic part of the compact unit, was 4.689 m long and had a diameter of 0.7 mm. The compact unit also contained a mixing chamber on the inlet side and a measuring chamber with a MiCS-6814 sensor on the outlet side. Mixtures of ethanol and water at different concentrations were chosen for characterization. The measured calibration curve was found to have a reliability of R2 = 0.9941. The study further addressed the elements of environmental friendliness of the materials used and their sustainability.
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Affiliation(s)
- Magdalena Zvonkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Martin Adamek
- Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic
| | - Nela Skowronkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Stepan Dlabaja
- Department of Automation and Control Engineering, Faculty of Applied Informatics, Tomas Bata University in Zlin, Nad Stranemi 4511, 760 05 Zlin, Czech Republic
| | - Jiri Matyas
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida Tomase Bati 5678, 760 01 Zlin, Czech Republic
| | - Miroslav Jasso
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Anna Adamkova
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Jiri Mlcek
- Department of Food Analysis and Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Richardos Nikolaos Salek
- Department of Food Technology, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 760 01 Zlin, Czech Republic
| | - Martin Buran
- Department of Microelectronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 3058/10, 616 00 Brno, Czech Republic
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28
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van den Broek J, Keller SD, Goodall I, Parish-Virtue K, Bauer-Christoph C, Fuchs J, Tsipi D, Güntner AT, Blum T, Mathurin JC, Steiger MG, Shirvani R, Gössinger M, Graf M, Anderhub P, Z'graggen D, Hüsser C, Faigle B, Agapios A. Handheld methanol detector for beverage analysis: interlaboratory validation. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3859-3866. [PMID: 38847307 DOI: 10.1039/d4ay00919c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Methanol is a toxic alcohol contained in alcoholic beverages as a natural byproduct of fermentation or added intentionally to counterfeits to increase profit. To ensure consumer safety, many countries and the EU have established strict legislation limits for methanol content. Methanol concentration is mostly detected by laboratory instrumentation since mobile devices for routine on-site testing of beverages in distilleries, at border stations or even at home are not available. Here, we validated a handheld methanol detector for beverage analysis in an ISO 5725 interlaboratory trial: a total of 119 measurements were performed by 17 independent participants (distilleries, universities, authorities, and competence centers) from six countries on samples with relevant methanol concentrations (0.1, 1.5 vol%). The detector was based on a microporous separation filter and a nanostructured gas sensor allowing on-site measurement of methanol down to 0.01 vol% (in the liquid) within only 2 min by laymen. The detector showed excellent repeatability (<5.4%), reproducibility (<9.5%) and small bias (<0.012 vol%). Additional measurements on various methanol-spiked alcoholic beverages (whisky, rum, gin, vodka, tequila, port, sherry, liqueur) indicated that the detector is not interfered by environmental temperature and spirit composition, featuring excellent linearity (R2 > 0.99) down to methanol concentrations of 0.01 vol%. This device has been recently commercialized (Alivion Spark M-20) with comparable accuracy to the gold-standard gas chromatography and can be readily applied for final product inspection, intake control of raw materials or to identify toxic counterfeit products.
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Affiliation(s)
| | | | - Ian Goodall
- Scotch Whisky Research Institute, UK-EH144AP Riccarton, UK
| | | | | | - Johannes Fuchs
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, DE-97082 Würzburg, Germany
| | - Despina Tsipi
- General Chemical State Laboratory, GR-11521 Athens, Greece
| | - Andreas T Güntner
- Human-centered Sensing Laboratory, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Thomas Blum
- Research Division Food Microbial Systems, Agroscope, CH-8820 Wädenswil, Switzerland
| | | | - Matthias G Steiger
- Institute of Chemical, Environmental and Bioscience Engineering, Research Group Biochemistry, TU Wien, AT-1060 Vienna, Austria
| | - Roghayeh Shirvani
- Institute of Chemical, Environmental and Bioscience Engineering, Research Group Biochemistry, TU Wien, AT-1060 Vienna, Austria
| | - Manfred Gössinger
- Department of Fruit Processing, Federal College and Research Institute for Viticulture and Pomology Klosterneuburg, AT-3400 Klosterneuburg, Austria
| | - Monika Graf
- Department of Fruit Processing, Federal College and Research Institute for Viticulture and Pomology Klosterneuburg, AT-3400 Klosterneuburg, Austria
| | | | | | | | | | - Agapiou Agapios
- Department of Chemistry, University of Cyprus, CY-1678 Nicosia, Cyprus
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29
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Wang D, Xia Z, Wang L, Yan J, Yin H. Gas Graph Convolutional Transformer for Robust Generalization in Adaptive Gas Mixture Concentration Estimation. ACS Sens 2024; 9:1927-1937. [PMID: 38513127 DOI: 10.1021/acssensors.3c02654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Gas concentration estimation has a tremendous research significance in various fields. However, existing methods for estimating the concentration of mixed gases generally depend on specific data-preprocessing methods and suffer from poor generalizability to diverse types of gases. This paper proposes a graph neural network-based gas graph convolutional transformer model (GGCT) incorporating the information propagation properties and the physical characteristics of temporal sensor data. GGCT accurately predicts mixed gas concentrations and enhances its generalizability by analyzing the concentration tokens. The experimental results highlight the GGCT's robust performance, achieving exceptional levels of accuracy across most tested gas components, underscoring its strong potential for practical applications in mixed gas analysis.
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Affiliation(s)
- Ding Wang
- College of Electronics and Information Engineering, Tongji University, 4800 Cao'an Highway, Shanghai 201804, P. R. China
| | - Ziyuan Xia
- College of Electronics and Information Engineering, Tongji University, 4800 Cao'an Highway, Shanghai 201804, P. R. China
| | - Lei Wang
- College of Electronics and Information Engineering, Tongji University, 4800 Cao'an Highway, Shanghai 201804, P. R. China
| | - Jun Yan
- College of Electronics and Information Engineering, Tongji University, 4800 Cao'an Highway, Shanghai 201804, P. R. China
| | - Huilin Yin
- College of Electronics and Information Engineering, Tongji University, 4800 Cao'an Highway, Shanghai 201804, P. R. China
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30
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Zhao J, Wang H, Cai Y, Zhao J, Gao Z, Song YY. The Challenges and Opportunities for TiO 2 Nanostructures in Gas Sensing. ACS Sens 2024; 9:1644-1655. [PMID: 38503265 DOI: 10.1021/acssensors.4c00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Chemiresistive gas sensors based on metal oxides have been widely applied in industrial monitoring, medical diagnosis, environmental pollutant detection, and food safety. To further enhance the gas sensing performance, researchers have worked to modify the structure and function of the material so that it can adapt to different gas types and environmental conditions. Among the numerous gas-sensitive materials, n-type TiO2 semiconductors are a focus of attention for their high stability, excellent biosafety, controllable carrier concentration, and low manufacturing cost. This Perspective first introduces the sensing mechanism of TiO2 nanostructures and composite TiO2-based nanomaterials and then analyzes the relationship between their gas-sensitive properties and their structure and composition, focusing also on technical issues such as doping, heterojunctions, and functional applications. The applications and challenges of TiO2-based nanostructured gas sensors in food safety, medical diagnosis, environmental detection, and other fields are also summarized in detail. Finally, in the context of their practical application challenges, future development technologies and new sensing concepts are explored, providing new ideas and directions for the development of multifunctional intelligent gas sensors in various application fields.
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Affiliation(s)
- Jiahui Zhao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Haiquan Wang
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yahui Cai
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Junjin Zhao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Zhida Gao
- College of Sciences, Northeastern University, Shenyang 110004, China
| | - Yan-Yan Song
- College of Sciences, Northeastern University, Shenyang 110004, China
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31
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Duan P, Wang H, Zhou H, Zhang S, Meng X, Duan Q, Jin K, Sun J. MOF-derived xPd-NPs@ZnO porous nanocomposites for ultrasensitive ppb-level gas detection with photoexcitation: Design, diverse-scenario characterization, and mechanism. J Colloid Interface Sci 2024; 660:974-988. [PMID: 38286057 DOI: 10.1016/j.jcis.2024.01.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/25/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024]
Abstract
Metal-organic frameworks (MOFs) have been regarded as a potential candidate with great application prospects in the field of gas sensing. Although plenty of previous efforts have been made to improve the sensitivity of MOF-based nanocomposites, it is still a great challenge to realize ultrafast and high selectivity to typical flammable gases in a wide range. Herein, porous xPd-NPs@ZnO were prepared by optimized heat treatment, which maintained the controllable morphology and high specific surface area of 471.08 m2g-1. The coupling effects of photoexcitation and thermal excitation on the gas-sensing properties of nanocomposites were systematically studied. An ultrafast high response of 88.37 % towards 200 ppm H2 was realized within 1.2 s by 5.0Pd-NPs@ZnO under UV photoexcitation. All xPd-NPs@ZnO exhibited favorable linearity over an extremely wide range (0.2-4000 ppm H2) of experimental tests, indicating the great potential in quantitative detection. The photoexcited carriers enabled the nanocomposites a considerable response at lower operating temperatures, which made diverse applications of the sensors. The mechanisms of high sensing performances and the photoexcitation enhancement were systematically explained by DFT calculations. This work provides a solid experimental foundation and theoretical basis for the design of controllable porous materials and novel photoexcited gas detection.
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Affiliation(s)
- Peiyu Duan
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Haowen Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Hongmin Zhou
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Songlin Zhang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Xiangdong Meng
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Qiangling Duan
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Kaiqiang Jin
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China.
| | - Jinhua Sun
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, People's Republic of China.
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32
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Cowen T, Grammatikos S, Cheffena M. Molecularly imprinted polymer nanoparticle-carbon nanotube composite electrochemical gas sensor for highly selective and sensitive detection of methanol vapour. Analyst 2024; 149:2428-2435. [PMID: 38488210 DOI: 10.1039/d4an00045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
An electrochemical gas sensor has been fabricated using molecularly imprinted polymer nanoparticles (nanoMIPs) and multiwalled carbon nanotubes on screen-printed electrodes. Methanol vapour was chosen as the target due to its toxicity as its suitability as a model for more harmful pollutant gases. The sensor functions under ambient conditions and in the required concentration range, in contrast to all previous MIP-based gas sensors for methanol. The sensitivity of the sensor was greatly improved by the addition of multiwall carbon nanotubes, resulting in a limit of detection of approximately 10 ppm. The nanoMIPs provide an inherent selectivity for the target inherent in its design. Selectivity studies were performed with structurally analogous alcohols at various concentrations, demonstrating selectivity for methanol 12.1 times that for ethanol at 2 mmol dm-3 and 4.2 times that for ethanol at 1 mmol dm-3. Interactions with isopropanol and n-propanol were found to be non-specific, and the response to water was negligible. This demonstrates an improvement over previous methanol gas sensors based on molecularly imprinted polymers. No response was observed with carbon nanotubes alone, and no selectivity was observed with non-imprinted equivalents of the nanoMIP sensor. The resulting device is by far the most practical MIP-based instrument for methanol gas sensing thus far described in the literature, being the only example capable of functioning at the necessary methanol vapour concentrations and at the required temperature and humidity. With the selectivity and sensitivity described and the simple design, the developed device provides a substantial advance in the field of molecularly imprinted gas sensors.
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Affiliation(s)
- Todd Cowen
- Norwegian university of Science and Technology, Teknologivegen 22, 2815 Gjøvik, Norway.
| | - Sotirios Grammatikos
- Norwegian university of Science and Technology, Teknologivegen 22, 2815 Gjøvik, Norway.
| | - Michael Cheffena
- Norwegian university of Science and Technology, Teknologivegen 22, 2815 Gjøvik, Norway.
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33
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Li J, Si W, Shi L, Gao R, Li Q, An W, Zhao Z, Zhang L, Bai N, Zou X, Li GD. Essential role of lattice oxygen in hydrogen sensing reaction. Nat Commun 2024; 15:2998. [PMID: 38589359 PMCID: PMC11001979 DOI: 10.1038/s41467-024-47078-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 03/14/2024] [Indexed: 04/10/2024] Open
Abstract
Understanding the sensing mechanism of metal oxide semiconductors is imperative to the development of high-performance sensors. The traditional sensing mechanism only recognizes the effect of surface chemisorbed oxygen from the air but ignores surface lattice oxygen. Herein, using in-situ characterizations, we provide direct experimental evidence that the surface chemisorbed oxygen participated in the sensing process can come from lattice oxygen of the oxides. Further density functional theory (DFT) calculations prove that the p-band center of O serves as a state of art for regulating the participation of lattice oxygen in gas-sensing reactions. Based on our experimental data and theoretical calculations, we discuss mechanisms that are fundamentally different from the conventional mechanism and show that the easily participation of lattice oxygen is helpful for the high response value of the materials.
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Affiliation(s)
- Jiayu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Wenzhe Si
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, P. R. China
| | - Lei Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Ruiqin Gao
- School of Biological and Chemical Engineering, NingboTech University, No.1 South Qianhu Road, Ningbo, 315100, P. R. China.
| | - Qiuju Li
- Department of Chemistry, College of Basic Medicine, Third Military Medical University (Army Medical University), Chongqing, 400038, P. R. China.
| | - Wei An
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Zicheng Zhao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Lu Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Ni Bai
- School of Metallurgy Engineering, Jiangsu University of Science and Technology, Zhangjiagang, 215600, P. R. China
| | - Xiaoxin Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Guo-Dong Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
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34
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Lizonova D, Trivanovic U, Demokritou P, Kelesidis GA. Dispersion and Dosimetric Challenges of Hydrophobic Carbon-Based Nanoparticles in In Vitro Cellular Studies. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:589. [PMID: 38607123 PMCID: PMC11013865 DOI: 10.3390/nano14070589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Methodologies across the dispersion preparation, characterization, and cellular dosimetry of hydrophilic nanoparticles (NPs) have been developed and used extensively in the field of nanotoxicology. However, hydrophobic NPs pose a challenge for dispersion in aqueous culture media using conventional methods that include sonication followed by mixing in the culture medium of interest and cellular dosimetry. In this study, a robust methodology for the preparation of stable dispersions of hydrophobic NPs for cellular studies is developed by introducing continuous energy over time via stirring in the culture medium followed by dispersion characterization and cellular dosimetry. The stirring energy and the presence of proteins in the culture medium result in the formation of a protein corona around the NPs, stabilizing their dispersion, which can be used for in vitro cellular studies. The identification of the optimal stirring time is crucial for achieving dispersion and stability. This is assessed through a comprehensive stability testing protocol employing dynamic light scattering to evaluate the particle size distribution stability and polydispersity. Additionally, the effective density of the NPs is obtained for the stable NP dispersions using the volumetric centrifugation method, while cellular dosimetry calculations are done using available cellular computational modeling, mirroring approaches used for hydrophilic NPs. The robustness of the proposed dispersion approach is showcased using a highly hydrophobic NP model (black carbon NPs) and two culture media, RPMI medium and SABM, that are widely used in cellular studies. The proposed approach for the dispersion of hydrophobic NPs results in stable dispersions in both culture media used here. The NP effective density of 1.03-1.07 g/cm3 measured here for black carbon NPs is close to the culture media density, resulting in slow deposition on the cells over time. So, the present methodology for dispersion and dosimetry of hydrophobic NPs is essential for the design of dose-response studies and overcoming the challenges imposed by slow particle deposition.
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Affiliation(s)
- Denisa Lizonova
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Una Trivanovic
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Sonneggstrasse 3, CH-8092 Zürich, Switzerland
| | - Philip Demokritou
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Georgios A. Kelesidis
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Sonneggstrasse 3, CH-8092 Zürich, Switzerland
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35
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Parayil RT, Bhagat B, Gupta SK, Mukherjee K, Mohapatra M. Oxygen vacancy-enriched Zn 2SnO 4 for aliphatic alcohol sensing and enhanced selectivity towards n-butanol. Phys Chem Chem Phys 2024; 26:7424-7434. [PMID: 38351884 DOI: 10.1039/d3cp05178a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
The sensitive detection of toxic flammable volatile organics using low cost efficient sensors is important for ensuring both indoor and outdoor safety. It is essential for chemical sensors to exhibit a significantly stronger response to target analytes compared to equivalent amounts of analogous competing chemicals. In line with this importance, current work evaluated the performance of Zn2SnO4, a n-type semiconducting metal oxide, for sensing n-butanol in comparison to methanol, ethanol, and propanol vapours. These vapours fall within the category of aliphatic alcohols but vary in characteristics such as molecular weight, vapour pressure, volatility, and diffusivity. In this work we have explored the sensor's performance by adjusting the operating temperature over the range of 225-300 °C while detecting 1000 ppm of each of these vapours. Efforts were made to establish a correlation between the sensor's responses with the interactions of these vapours on the sensor's surface. Prior to assessing the sensing characteristics of the solid-state-route-derived Zn2SnO4, its structural characteristics, including phase purity, crystalline structure, bonding patterns, morphology, and defect characteristics, were studied. This comprehensive analysis sheds light on the potential of Zn2SnO4 as an effective sensor for detecting n-butanol.
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Affiliation(s)
- Reshmi Thekke Parayil
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - B Bhagat
- Department of Chemistry, Pandit Deendayal Energy University, Gandhinagar-382426, Gujarat, India.
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - K Mukherjee
- Department of Chemistry, Pandit Deendayal Energy University, Gandhinagar-382426, Gujarat, India.
| | - Manoj Mohapatra
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
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36
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Ou Y, Zhai L, Zhu G, Zhang W, Huang X, Akdim O, Zhu L, Nie J, Rao F, Huang Y, Shi X, Gao J, Lu H, Hojamberdiev M. Achieving Molecular-Level Selective Detection of Volatile Organic Compounds through a Strong Coupling Effect of Ultrathin Nanosheets and Au Nanoparticles. ACS Sens 2024; 9:139-148. [PMID: 38096168 DOI: 10.1021/acssensors.3c01777] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
The high density of surface active sites, high efficiency of interfacial carrier transport, and molecular diffusion path determine the efficiency of the electrochemical sensors. The ultrathin structures have atomic-level thickness, carrier migration and heat diffusion are limited in the two-dimensional plane, resulting in excellent conductivity and high carrier concentration. A one-step chemical method is applied to synthesize defect-rich Au-SnO2 in an ultrathin nanosheet form (thickness of 2-3 nm). The strong interaction between Au and SnO2 via the Au-O-Sn bonding and the catalytic effect of Au can prolong the service life via decreasing the optimal operating temperature (55 °C) and promote the Au-SnO2 sensor to exclusively detect formaldehyde at the ppb level (300 ppb). The experimental findings along with theoretical study reveal that Au nanoparticles have a different effect on the competitive adsorption and chemical reaction over the surface of the Au-SnO2 with formaldehyde and other interfering VOC gases, such as methanol, ethanol, and acetone. This study provides mechanistic insights into the correlation between operating temperature and the performance of the Au-SnO2 chemiresistive sensor. This work allows the development of highly efficient and stable electrochemical sensors to detect VOC gases at room temperature in the future.
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Affiliation(s)
- Yucheng Ou
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Liangyu Zhai
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Gangqiang Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Weibin Zhang
- Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, P.R. China
| | - Xiaoyang Huang
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Ouardia Akdim
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom
| | - Lujun Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Junli Nie
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Fei Rao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Yu Huang
- State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, P.R. China
| | - Xianjin Shi
- State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, P.R. China
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Hongbin Lu
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Mirabbos Hojamberdiev
- Institut für Chemie, Technische Universität Berlin, Straße des 17, Juni 135, Berlin 10623, Germany
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37
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Deng Q, Yin K, Wang L, Zhang H, Huang Q, Luo Z, He J, Duan JA. One Droplet toward Efficient Alcohol Detection Using Femtosecond Laser Textured Micro/Nanostructured Surface with Superwettability. SMALL METHODS 2023; 7:e2300290. [PMID: 37140085 DOI: 10.1002/smtd.202300290] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/19/2023] [Indexed: 05/05/2023]
Abstract
Alcohol with different concentrations is commonly used in food, industry, and medicine fields all over the world. However, current methods for detecting alcohol concentration are restricted to large sample consumption, additional senergy consuming, or complex operations. Here, inspired by superwettability of lotus leaves, a superhydrophobic and superorganophilic surface is designed on the polydimethylsiloxane (PDMS) for one droplet efficient alcohol detection, which is prepared via femtosecond laser direct writing technology. Meanwhile, the contact angles of droplets with various alcohol concentrations on the laser-treated PDMS (LTP) surface are different. Based on the above characteristic, alcohol concentration through contact angle measurement without any external energy is directly detected, which is simple and efficient. Furthermore, it is worth noting that the LTP surface remains stable wettability after 1000 water-ethanol cycles and 300 days tests in air, indicating strong surface repeatability and stability. Significantly, the LTP surface has a broad potential application in one droplet detecting alcohol concentration, fake or genuine wine, and alcohol molecules. This work provides a new strategy to fabricate a superwetting surface for efficient one droplet alcohol detection.
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Affiliation(s)
- Qinwen Deng
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
| | - Kai Yin
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Lingxiao Wang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
| | - Hao Zhang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
| | - Qiaoqiao Huang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
| | - Zhi Luo
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Jun He
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, P. R. China
| | - Ji-An Duan
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, P. R. China
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Wang Y, Fu J, Hu H, Ho D. d-Band Center Optimization of Ti 3C 2T x MXene Nanosheets for Ultrahigh NO 2 Gas Sensitivity at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40846-40854. [PMID: 37582059 DOI: 10.1021/acsami.3c08512] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
MXene exhibits numerous advantageous properties such as high electronic conductivity, high surface area, and ease of surface modification via tailoring of functional groups. However, the mechanism by which MXene functionalization enhances gas sensing performance has not yet been well understood, let alone the development of a rational sensor design optimization strategy. This work presents a functionalization methodology for MXene based on d-band center modulation, which can be implemented by introducing Fe onto the surface of Ti3C2Tx nanosheets, for significantly improved gas sensing response and selectivity. The strategy is demonstrated in the design of gas sensors. The optimized gas sensor shows a response of 50% toward 10 ppm of NO2 at room temperature, which is over 6-fold improvement from its pristine counterpart, an unprecedented performance level among all reported MXene gas sensors. XPS characterizations, valence band analyses, and density functional theory (DFT) calculations all indicate that the underlying enhancement mechanism can be attributed to the tuning of the d-band center energy toward the Fermi level. This work provides a new design strategy based on the optimization of the d-band center energy and adds a much needed systematic and quantitative method to the design of two-dimensional materials based semiconducting gas sensors.
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Affiliation(s)
- Ying Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jimin Fu
- Research Institute for Intelligent Wearable Systems, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong, China
| | - Haibo Hu
- School of Materials Science and Engineering, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
| | - Derek Ho
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
- Hong Kong Center for Cerebro-Cardiovascular Health Engineering, Hong Kong, China
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Chen K, Xie W, Deng Y, Han J, Zhu Y, Sun J, Yuan K, Wu L, Deng Y. Alkaloid Precipitant Reaction Inspired Controllable Synthesis of Mesoporous Tungsten Oxide Spheres for Biomarker Sensing. ACS NANO 2023; 17:15763-15775. [PMID: 37556610 DOI: 10.1021/acsnano.3c03549] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Highly porous sensitive materials with well-defined structures and morphologies are extremely desirable for developing high-performance chemiresistive gas sensors. Herein, inspired by the classical alkaloid precipitant reaction, a robust and reliable active mesoporous nitrogen polymer sphere-directed synthesis method was demonstrated for the controllable construction of heteroatom-doped mesoporous tungsten oxide spheres. In the typical synthesis, P-doped mesoporous WO3 monodisperse spheres with radially oriented channels (P-mWO3-R) were obtained with a diameter of ∼180 nm, high specific surface area, and crystalline skeleton. The in situ-introduced P atoms could effectively adjust the coordination environment of W atoms (Wδ+-Ov), giving rise to dramatically enhanced active surface-adsorbed oxygen species and unusual metastable ε-WO3 crystallites. The P-mWO3-R spheres were applied for the sensing of 3-hydroxy-2-butanone (3H2B), a biomarker of foodborne pathogenic bacteria Listeria monocytogenes (LM). The sensor exhibited high sensitivity (Ra/Rg = 29 to 3 ppm), fast response dynamics (26/7 s), outstanding selectivity, and good long-term stability. Furthermore, the device was integrated into a wireless sensing module to realize remote real-time and precise detection of LM in practical applications, making it possible to evaluate food quality using gas sensors conveniently.
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Affiliation(s)
- Keyu Chen
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, State Key Laboratory of Molecular Engineering of Polymers, State Key Lab of Transducer Technology, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Wenhe Xie
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, State Key Laboratory of Molecular Engineering of Polymers, State Key Lab of Transducer Technology, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Yu Deng
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, State Key Laboratory of Molecular Engineering of Polymers, State Key Lab of Transducer Technology, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Jingting Han
- Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China
| | - Yongheng Zhu
- Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China
| | - Jianguo Sun
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University; NHC Key Laboratory of Myopia (Fudan University), Shanghai 200031, China
| | - Kaiping Yuan
- Frontier Institute of Chip and System, State Key Laboratory of Integrated Chips and Systems, Fudan University, Shanghai 200433, China
| | - Limin Wu
- Institute of Energy and Materials Chemistry, Inner Mongolia University, Hohhot 010021, China
| | - Yonghui Deng
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, State Key Laboratory of Molecular Engineering of Polymers, State Key Lab of Transducer Technology, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
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Dutta T, Noushin T, Tabassum S, Mishra SK. Road Map of Semiconductor Metal-Oxide-Based Sensors: A Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:6849. [PMID: 37571634 PMCID: PMC10422562 DOI: 10.3390/s23156849] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023]
Abstract
Identifying disease biomarkers and detecting hazardous, explosive, flammable, and polluting gases and chemicals with extremely sensitive and selective sensor devices remains a challenging and time-consuming research challenge. Due to their exceptional characteristics, semiconducting metal oxides (SMOxs) have received a lot of attention in terms of the development of various types of sensors in recent years. The key performance indicators of SMOx-based sensors are their sensitivity, selectivity, recovery time, and steady response over time. SMOx-based sensors are discussed in this review based on their different properties. Surface properties of the functional material, such as its (nano)structure, morphology, and crystallinity, greatly influence sensor performance. A few examples of the complicated and poorly understood processes involved in SMOx sensing systems are adsorption and chemisorption, charge transfers, and oxygen migration. The future prospects of SMOx-based gas sensors, chemical sensors, and biological sensors are also discussed.
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Affiliation(s)
- Taposhree Dutta
- Department of Chemistry, IIEST Shibpur, Howrah 711103, West Bengal, India;
| | - Tanzila Noushin
- Department of Electrical and Computer Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA;
| | - Shawana Tabassum
- Department of Electrical Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA;
| | - Satyendra K. Mishra
- Danish Offshore Technology Center, Technical University of Denmark, 2800 Lyngby, Denmark
- SRCOM, Centre Technologic de Telecomunicacions de Catalunya, 08860 Castelldefels, Barcelona, Spain
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Bastide GMGBH, Remund AL, Oosthuizen DN, Derron N, Gerber PA, Weber IC. Handheld device quantifies breath acetone for real-life metabolic health monitoring. SENSORS & DIAGNOSTICS 2023; 2:918-928. [PMID: 37465007 PMCID: PMC10351029 DOI: 10.1039/d3sd00079f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/10/2023] [Indexed: 07/20/2023]
Abstract
Non-invasive breath analysis with mobile health devices bears tremendous potential to guide therapeutic treatment and personalize lifestyle changes. Of particular interest is the breath volatile acetone, a biomarker for fat burning, that could help in understanding and treating metabolic diseases. Here, we report a hand-held (6 × 10 × 19.5 cm3), light-weight (490 g), and simple device for rapid acetone detection in breath. It comprises a tailor-made end-tidal breath sampling unit, connected to a sensor and a pump for on-demand breath sampling, all operated using a Raspberry Pi microcontroller connected with a HDMI touchscreen. Accurate acetone detection is enabled by introducing a catalytic filter and a separation column, which remove and separate undesired interferents from acetone upstream of the sensor. This way, acetone is detected selectively even in complex gas mixtures containing highly concentrated interferents. This device accurately tracks breath acetone concentrations in the exhaled breath of five volunteers during a ketogenic diet, being as high as 26.3 ppm. Most importantly, it can differentiate small acetone changes during a baseline visit as well as before and after an exercise stimulus, being as low as 0.5 ppm. It is stable for at least four months (122 days), and features excellent bias and precision of 0.03 and 0.6 ppm at concentrations below 5 ppm, as validated by proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS). Hence, this detector is highly promising for simple-in-use, non-invasive, and routine monitoring of acetone to guide therapeutic treatment and track lifestyle changes.
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Affiliation(s)
- Grégoire M G B H Bastide
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH) CH-8091 Zurich Switzerland
| | - Anna L Remund
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH) CH-8091 Zurich Switzerland
| | - Dina N Oosthuizen
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
- Department of Mechanical and Industrial Engineering, Northeastern University 467 Egan Center 02115 MA Boston USA
| | - Nina Derron
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH) CH-8091 Zurich Switzerland
| | - Philipp A Gerber
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH) CH-8091 Zurich Switzerland
| | - Ines C Weber
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zurich CH-8092 Zurich Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH) CH-8091 Zurich Switzerland
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Jangjou A, Moqadas M, Mohsenian L, Kamyab H, Chelliapan S, Alshehery S, Ali MA, Dehbozorgi F, Yadav KK, Khorami M, Zarei Jelyani N. Awareness raising and dealing with methanol poisoning based on effective strategies. ENVIRONMENTAL RESEARCH 2023; 228:115886. [PMID: 37072082 DOI: 10.1016/j.envres.2023.115886] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023]
Abstract
Intoxication with methanol most commonly occurs as a consequence of ingesting, inhaling, or coming into contact with formulations that include methanol as a base. Clinical manifestations of methanol poisoning include suppression of the central nervous system, gastrointestinal symptoms, and decompensated metabolic acidosis, which is associated with impaired vision and either early or late blindness within 0.5-4 h after ingestion. After ingestion, methanol concentrations in the blood that are greater than 50 mg/dl should raise some concern. Ingested methanol is typically digested by alcohol dehydrogenase (ADH), and it is subsequently redistributed to the body's water to attain a volume distribution that is about equivalent to 0.77 L/kg. Moreover, it is removed from the body as its natural, unchanged parent molecules. Due to the fact that methanol poisoning is relatively uncommon but frequently involves a large number of victims at the same time, this type of incident occupies a special position in the field of clinical toxicology. The beginning of the COVID-19 pandemic has resulted in an increase in erroneous assumptions regarding the preventative capability of methanol in comparison to viral infection. More than 1000 Iranians fell ill, and more than 300 of them passed away in March of this year after they consumed methanol in the expectation that it would protect them from a new coronavirus. The Atlanta epidemic, which involved 323 individuals and resulted in the deaths of 41, is one example of mass poisoning. Another example is the Kristiansand outbreak, which involved 70 people and resulted in the deaths of three. In 2003, the AAPCC received reports of more than one thousand pediatric exposures. Since methanol poisoning is associated with high mortality rates, it is vital that the condition be addressed seriously and managed as quickly as feasible. The objective of this review was to raise awareness about the mechanism and metabolism of methanol toxicity, the introduction of therapeutic interventions such as gastrointestinal decontamination and methanol metabolism inhibition, the correction of metabolic disturbances, and the establishment of novel diagnostic/screening nanoparticle-based strategies for methanol poisoning such as the discovery of ADH inhibitors as well as the detection of the adulteration of alcoholic drinks by nanoparticles in order to prevent methanol poisoning. In conclusion, increasing warnings and knowledge about clinical manifestations, medical interventions, and novel strategies for methanol poisoning probably results in a decrease in the death load.
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Affiliation(s)
- Ali Jangjou
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mostafa Moqadas
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Leila Mohsenian
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
| | - Shreeshivadasan Chelliapan
- Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jln Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Sultan Alshehery
- Department of Mechanical Engineering King Khalid University, zip code - 62217, Saudi Arabia
| | - Mohammed Azam Ali
- Department of Mechanical Engineering King Khalid University, zip code - 62217, Saudi Arabia
| | - Farbod Dehbozorgi
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah, 64001, Iraq
| | - Masoud Khorami
- Department of Civil Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Najmeh Zarei Jelyani
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Weber IC, Oosthuizen DN, Mohammad RW, Mayhew CA, Pratsinis SE, Güntner AT. Dynamic Breath Limonene Sensing at High Selectivity. ACS Sens 2023. [PMID: 37377394 DOI: 10.1021/acssensors.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Liver diseases (e.g., cirrhosis, cancer) cause more than two million deaths per year worldwide. This is partly attributed to late diagnosis and insufficient screening techniques. A promising biomarker for noninvasive and inexpensive liver disease screening is breath limonene that can indicate a deficiency of the cytochrome P450 liver enzymes. Here, we introduce a compact and low-cost detector for dynamic and selective breath limonene sensing. It comprises a chemoresistive sensor based on Si/WO3 nanoparticles pre-screened by a packed bed Tenax separation column at room temperature. We demonstrate selective limonene detection down to 20 parts per billion over up to three orders of magnitude higher concentrated acetone, ethanol, hydrogen, methanol, and 2-propanol in gas mixtures, as well as robustness to 10-90% relative humidity. Most importantly, this detector recognizes the individual breath limonene dynamics of four healthy volunteers following the ingestion (swallowing or chewing) of a limonene capsule. Limonene release and subsequent metabolization are monitored from breath measurements in real time and in excellent agreement (R2 = 0.98) with high-resolution proton transfer reaction mass spectrometry. This study demonstrates the potential of the detector as a simple-to-use and noninvasive device for the routine monitoring of limonene levels in exhaled breath to facilitate early diagnosis of liver dysfunction.
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Affiliation(s)
- Ines C Weber
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
| | - Dina N Oosthuizen
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Rawan W Mohammad
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Chris A Mayhew
- Institute for Breath Research, Universität Innsbruck, Innsbruck A-6020, Austria
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Andreas T Güntner
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
- Human-centered Sensor Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
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Esmeryan KD, Lazarov Y, Grakov T, Fedchenko YI, Vergov LG, Staykov S. Metal-Phenolic Film Coated Quartz Crystal Microbalance as a Selective Sensor for Methanol Detection in Alcoholic Beverages. MICROMACHINES 2023; 14:1274. [PMID: 37374859 DOI: 10.3390/mi14061274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
The facile real-time monitoring of methyl content in fermented beverages is of fundamental significance in the alcohol and restaurant industry, since as little as 4 mL of methanol entering the blood may cause intoxication or blindness. So far, the practical applicability of available methanol sensors, including the piezoresonance analogs, is somewhat limited to laboratory use due to the complexity and bulkiness of the measuring equipment involving multistep procedures. This article introduces a hydrophobic metal-phenolic film-coated quartz crystal microbalance (MPF-QCM) as a novel streamlined detector of methanol in alcoholic drinks. Unlike other QCM-based alcohol sensors, our device operates under saturated vapor pressure conditions, permitting rapid detection of methyl fractions up to seven times below the tolerable levels in spirits (e.g., whisky) while effectively suppressing the cross-sensitivity to interfering chemical compounds such as water, petroleum ether or ammonium hydroxide. Furthermore, the good surface adhesion of metal-phenolic complexes endows the MPF-QCM with superior long-term stability, contributing to the repeatable and reversible physical sorption of the target analytes. These features, combined with the lack of mass flow controllers, valves and connecting pipes delivering the gas mixture, outline the likelihood for future design of a portable MPF-QCM prototype suitable to point-of-use analysis in drinking establishments.
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Affiliation(s)
- Karekin D Esmeryan
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Yuliyan Lazarov
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Teodor Grakov
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Yulian I Fedchenko
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Lazar G Vergov
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Stefan Staykov
- Acoustoelectronics Laboratory, Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
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Singh V, Thamizhanban A, Lalitha K, Subbiah DK, Rachamalla AK, Rebaka VP, Banoo T, Kumar Y, Sridharan V, Ahmad A, Maheswari Chockalingam U, Balaguru Rayappan JB, Khan AA, Nagarajan S. Self-Assembling Nanoarchitectonics of Twisted Nanofibers of Fluorescent Amphiphiles as Chemo-Resistive Sensor for Methanol Detection. Gels 2023; 9:442. [PMID: 37367114 DOI: 10.3390/gels9060442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/28/2023] Open
Abstract
The inhalation, ingestion, and body absorption of noxious gases lead to severe tissue damage, ophthalmological issues, and neurodegenerative disorders; death may even occur when recognized too late. In particular, methanol gas present in traces can cause blindness, non-reversible organ failure, and even death. Even though ample materials are available for the detection of methanol in other alcoholic analogs at ppm level, their scope is very limited because of the use of either toxic or expensive raw materials or tedious fabrication procedures. In this paper, we report on a simple synthesis of fluorescent amphiphiles achieved using a starting material derived from renewable resources, this material being methyl ricinoleate in good yields. The newly synthesized bio-based amphiphiles were prone to form a gel in a broad range of solvents. The morphology of the gel and the molecular-level interaction involved in the self-assembly process were thoroughly investigated. Rheological studies were carried out to probe the stability, thermal processability, and thixotropic behavior. In order to evaluate the potential application of the self-assembled gel in the field of sensors, we performed sensor measurements. Interestingly, the twisted fibers derived from the molecular assembly could be able to display a stable and selective response towards methanol. We believe that the bottom-up assembled system holds great promise in the environmental, healthcare, medicine, and biological fields.
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Affiliation(s)
- Vandana Singh
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Ayyapillai Thamizhanban
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Krishnamoorthy Lalitha
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Dinesh Kumar Subbiah
- Centre for Nano Technology & Advanced Biomaterials (CeNTAB), School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Arun Kumar Rachamalla
- Assembled Organic and Hybrid Materials Research Laboratory, Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Vara Prasad Rebaka
- Assembled Organic and Hybrid Materials Research Laboratory, Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Tohira Banoo
- Assembled Organic and Hybrid Materials Research Laboratory, Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Yogendra Kumar
- Assembled Organic and Hybrid Materials Research Laboratory, Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Vellaisamy Sridharan
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), District-Samba, Jammu 181143, Jammu and Kashmir, India
| | - Asrar Ahmad
- Center for Sickle Cell Disease, College of Medicine, Howard University, Washington, DC 20001, USA
| | - Uma Maheswari Chockalingam
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - John Bosco Balaguru Rayappan
- Centre for Nano Technology & Advanced Biomaterials (CeNTAB), School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Subbiah Nagarajan
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
- Assembled Organic and Hybrid Materials Research Laboratory, Department of Chemistry, National Institute of Technology Warangal, Warangal 506004, Telangana, India
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46
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Liu Y, Yiu CK, Zhao Z, Park W, Shi R, Huang X, Zeng Y, Wang K, Wong TH, Jia S, Zhou J, Gao Z, Zhao L, Yao K, Li J, Sha C, Gao Y, Zhao G, Huang Y, Li D, Guo Q, Li Y, Yu X. Soft, miniaturized, wireless olfactory interface for virtual reality. Nat Commun 2023; 14:2297. [PMID: 37160931 PMCID: PMC10169775 DOI: 10.1038/s41467-023-37678-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/28/2023] [Indexed: 05/11/2023] Open
Abstract
Recent advances in virtual reality (VR) technologies accelerate the creation of a flawless 3D virtual world to provide frontier social platform for human. Equally important to traditional visual, auditory and tactile sensations, olfaction exerts both physiological and psychological influences on humans. Here, we report a concept of skin-interfaced olfactory feedback systems with wirelessly, programmable capabilities based on arrays of flexible and miniaturized odor generators (OGs) for olfactory VR applications. By optimizing the materials selection, design layout, and power management, the OGs exhibit outstanding device performance in various aspects, from response rate, to odor concentration control, to long-term continuous operation, to high mechanical/electrical stability and to low power consumption. Representative demonstrations in 4D movie watching, smell message delivery, medical treatment, human emotion control and VR/AR based online teaching prove the great potential of the soft olfaction interface in various practical applications, including entertainment, education, human machine interfaces and so on.
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Affiliation(s)
- Yiming Liu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Chun Ki Yiu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Zhao Zhao
- Institute of Solid Mechanics, Beihang University, Beijing, 100191, China
- China Special Equipment Inspection and Research Institute, Beijing, 100029, China
| | - Wooyoung Park
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Rui Shi
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Xingcan Huang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Yuyang Zeng
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Kuan Wang
- Institute of Solid Mechanics, Beihang University, Beijing, 100191, China
| | - Tsz Hung Wong
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Shengxin Jia
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Jingkun Zhou
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Zhan Gao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Ling Zhao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Kuanming Yao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Jian Li
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Chuanlu Sha
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Yuyu Gao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Guangyao Zhao
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
| | - Ya Huang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Dengfeng Li
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong
| | - Qinglei Guo
- Center of Nanoelectronics, School of Microelectronics, Shandong University, Jinan, 250100, China
| | - Yuhang Li
- Institute of Solid Mechanics, Beihang University, Beijing, 100191, China.
- Aircraft and Propulsion Laboratory, Ningbo Institute of Technology Beihang University, Ningbo, 315100, China.
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, Kowloong Tong, Hong Kong.
- Hong Kong Center for Cerebra-Cardiovascular Health Engineering, Hong Kong Science Park, New Territories, 999077, Hong Kong.
- City University of Hong Kong Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, China.
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47
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Razmshoar P, Besbes F, Madaci A, Mlika R, Bahrami SH, Rabiee M, Martin M, Errachid A, Jaffrezic-Renault N. A conductometric enzymatic methanol sensor based on polystyrene - PAMAM dendritic polymer electrospun nanofibers. Talanta 2023; 260:124630. [PMID: 37178675 DOI: 10.1016/j.talanta.2023.124630] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/22/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
Methanol (MeOH) is a solvent and cleaning agent used in industry, but it is poisonous when ingested. The recommended release threshold for MeOH vapor is 200 ppm. We present a novel sensitive micro-conductometric MeOH biosensor created by grafting alcohol oxidase (AOX) onto electrospun polystyrene-poly(amidoamine) dendritic polymer blend nanofibers (PS-PAMAM-ESNFs) on interdigitated electrodes (IDEs). The analytical performance of the MeOH microsensor was evaluated using gaseous MeOH, ethanol, and acetone samples collected from the headspace above aqueous solution with known concentration. The sensor's response time (tRes) fluctuates from 13 s to 35 s from lower to higher concentrations. The conductometric sensor has a sensitivity of 150.53 μS.cm-1 (v/v) for MeOH and a detection limit of 100 ppm in the gas phase. The MeOH sensor is 7.3 times less sensitive to ethanol and 136.8 times less sensitive to acetone. The sensor was verified for detecting MeOH in commercial rubbing alcohol samples.
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Affiliation(s)
- Pouyan Razmshoar
- Textile Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran; University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Fatma Besbes
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France; University of Monastir, Laboratory of Interfaces and Advanced Materials, Faculty of Science of Monastir, 5019, Monastir, Tunisia
| | - Anis Madaci
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Rym Mlika
- University of Monastir, Laboratory of Interfaces and Advanced Materials, Faculty of Science of Monastir, 5019, Monastir, Tunisia
| | - S Hajir Bahrami
- Textile Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mohammad Rabiee
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Marie Martin
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Abdelhamid Errachid
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France
| | - Nicole Jaffrezic-Renault
- University of Lyon, Institute of Analytical Sciences, UMR 5280, CNRS, F-69100, Villeurbanne, France.
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48
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Ansari HR, Kordrostami Z, Mirzaei A. In-vehicle wireless driver breath alcohol detection system using a microheater integrated gas sensor based on Sn-doped CuO nanostructures. Sci Rep 2023; 13:7136. [PMID: 37130889 PMCID: PMC10154331 DOI: 10.1038/s41598-023-34313-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/27/2023] [Indexed: 05/04/2023] Open
Abstract
In this paper, we have developed an in-vehicle wireless driver breath alcohol detection (IDBAD) system based on Sn-doped CuO nanostructures. When the proposed system detects the ethanol trace in the driver`s exhaled breath, it can alarm and then prevents the car to be started and also sends the location of the car to the mobile phone. The sensor used in this system is a two-sided micro-heater integrated resistive ethanol gas sensor fabricated based on Sn-doped CuO nanostructures. Pristine and Sn-doped CuO nanostructures were synthesized as the sensing materials. The micro-heater is calibrated to provide the desired temperature by applying voltage. The results showed that by Sn-doping in CuO nanostructures, the sensor performance can be significantly improved. The proposed gas sensor has a fast response, good repeatability along with good selectivity that makes it suitable for being used in practical applications such as the proposed system.
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Affiliation(s)
- Hamid Reza Ansari
- Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran
- Research Center for Design and Fabrication of Advanced Electronic Devices, Shiraz University of Technology, Shiraz, Iran
| | - Zoheir Kordrostami
- Department of Electrical and Electronics Engineering, Shiraz University of Technology, Shiraz, Iran.
- Research Center for Design and Fabrication of Advanced Electronic Devices, Shiraz University of Technology, Shiraz, Iran.
| | - Ali Mirzaei
- Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz, Iran
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49
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Cho I, Lee K, Sim YC, Jeong JS, Cho M, Jung H, Kang M, Cho YH, Ha SC, Yoon KJ, Park I. Deep-learning-based gas identification by time-variant illumination of a single micro-LED-embedded gas sensor. LIGHT, SCIENCE & APPLICATIONS 2023; 12:95. [PMID: 37072383 PMCID: PMC10113244 DOI: 10.1038/s41377-023-01120-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 02/07/2023] [Accepted: 02/27/2023] [Indexed: 05/03/2023]
Abstract
Electronic nose (e-nose) technology for selectively identifying a target gas through chemoresistive sensors has gained much attention for various applications, such as smart factory and personal health monitoring. To overcome the cross-reactivity problem of chemoresistive sensors to various gas species, herein, we propose a novel sensing strategy based on a single micro-LED (μLED)-embedded photoactivated (μLP) gas sensor, utilizing the time-variant illumination for identifying the species and concentrations of various target gases. A fast-changing pseudorandom voltage input is applied to the μLED to generate forced transient sensor responses. A deep neural network is employed to analyze the obtained complex transient signals for gas detection and concentration estimation. The proposed sensor system achieves high classification (~96.99%) and quantification (mean absolute percentage error ~ 31.99%) accuracies for various toxic gases (methanol, ethanol, acetone, and nitrogen dioxide) with a single gas sensor consuming 0.53 mW. The proposed method may significantly improve the efficiency of e-nose technology in terms of cost, space, and power consumption.
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Affiliation(s)
- Incheol Cho
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Kichul Lee
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young Chul Sim
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae-Seok Jeong
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Minkyu Cho
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Heechan Jung
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Mingu Kang
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong-Hoon Cho
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seung Chul Ha
- SENKO Co., Ltd., 485, Oesammi-Dong, Osan-Si, Gyeonggil-Do, 18111, Republic of Korea
| | - Kuk-Jin Yoon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Inkyu Park
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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50
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Rohman YM, Sukowati R, Priyanto A, Hapidin DA, Edikresnha D, Khairurrijal K. Quartz Crystal Microbalance Coated with Polyacrylonitrile/Nickel Nanofibers for High-Performance Methanol Gas Detection. ACS OMEGA 2023; 8:13342-13351. [PMID: 37065082 PMCID: PMC10099416 DOI: 10.1021/acsomega.3c00760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/17/2023] [Indexed: 06/19/2023]
Abstract
This study describes a sensor based on quartz crystal microbalance (QCM) coated by polyacrylonitrile (PAN) nanofibers containing nickel nanoparticles for methanol gas detection. The PAN/nickel nanofibers composites were made via electrospinning and electrospray methods. The QCM sensors coated with the PAN/nickel nanofiber composite were evaluated for their sensitivities, selectivities, and stabilities. The morphologies and elemental compositions of the sensors were examined using a scanning electron microscope-energy dispersive X-ray. A Fourier Transform Infrared spectrometer was used to investigate the elemental bonds within the nanofiber composites. The QCM sensors coated with PAN/nickel nanofibers offered a high specific surface area to enhance the QCM sensing performance. They exhibited excellent sensing characteristics, including a high sensitivity of 389.8 ± 3.8 Hz/SCCM, response and recovery times of 288 and 251 s, respectively, high selectivity for methanol compared to other gases, a limit of detection (LOD) of about 1.347 SCCM, and good long-term stability. The mechanism of methanol gas adsorption by the PAN/nickel nanofibers can be attributed to intermolecular interactions, such as the Lewis acid-base reaction by PAN nanofibers and hydrogen bonding by nickel nanoparticles. The results suggest that QCM-coated PAN/nickel nanofiber composites show great potential for the design of highly sensitive and selective methanol gas sensors.
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Affiliation(s)
- Yadi Mulyadi Rohman
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
| | - Riris Sukowati
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
| | - Aan Priyanto
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
- Doctoral
Program of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
| | - Dian Ahmad Hapidin
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
| | - Dhewa Edikresnha
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
- Research
Center for Biosciences and Biotechnology, University Center of Excellence-Nutraceutical, Institut Teknologi
Bandung, Jalan Ganesa
10, Bandung, West Java 40132, Indonesia
| | - Khairurrijal Khairurrijal
- Department
of Physics, Faculty of Mathematics and Naturals Sciences, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung, West Java 40132, Indonesia
- Research
Center for Biosciences and Biotechnology, University Center of Excellence-Nutraceutical, Institut Teknologi
Bandung, Jalan Ganesa
10, Bandung, West Java 40132, Indonesia
- Department
of Physics, Faculty of Science, Institut
Teknologi Sumatera, Jalan
Terusan Ryacudu, Way Huwi, Lampung 35365, Indonesia
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