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Kumar PS, Bae J, Roh JW, Min Y, Lee S. Enhanced voltage and capacitance in flexible supercapacitors using electrospun nanofiber electrolytes and CuNi 2O 3@N-Doped omnichannel carbon electrodes. NANO CONVERGENCE 2025; 12:21. [PMID: 40301281 PMCID: PMC12040801 DOI: 10.1186/s40580-025-00485-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2025] [Accepted: 04/07/2025] [Indexed: 05/01/2025]
Abstract
Developing functional solid polymer electrolytes (SPEs) is crucial for flexible, lightweight, and portable supercapacitors. This work presents an electrospinning approach to fabricate SPEs using poly(vinyl alcohol)-sodium chloride (PVA-NaCl) nanofibers (PNNF). CuNi2O3 nanoparticles deposited on nitrogen-doped omnichannel carbon nanofibers (CuNi2O3@N-OCCFs), coated onto a carbon cloth (CC), serve as the positive electrode, enhancing faradaic capacitance. Meanwhile, the rationally designed N-OCCFs, also coated onto CC, function as the negative electrode, providing a high-surface-area, and facilitating rapid electron transport. Comprehensive characterization revealed insights into the morphology and chemical composition of both electrodes and the PNNF electrolyte. An all-solid-state asymmetric flexible supercapacitor (AFSC) device, CuNi2O3@N-OCCFs-1.5//N-OCCFs-1.5, was assembled using PNNF as both the electrolyte and separator and evaluated against devices employing gel and aqueous electrolytes. The PNNF electrolyte enabled a wider potential window (2.2 V) compared to gel (2.0 V) and liquid (1.8 V) electrolytes. The AFSC achieved an impressive energy density of 63.6 Wh kg-1 at a power density of 1100 W kg-1, with 96.2% capacitance retention after 6000 charge/discharge cycles at 10 A g⁻1. When two devices were connected in series, they powered a red LED for 5.33 min and a blue LED for 1.43 min, demonstrating practical applicability. This study provides a simple and effective strategy for fabricating high-energy-density AFSCs with excellent cycling stability and broad potential for flexible electronics.
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Affiliation(s)
- Ponnaiah Sathish Kumar
- Magnetics Initiative Life Care Research Center, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-Daero, Hyeonpung-Myeon, Dalseong-Gun, Daegu, 711-873, Republic of Korea
| | - Jihoon Bae
- Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-Daero, Hyeonpung-Myeon, Dalseong-Gun, Daegu, 711-873, Republic of Korea
| | - Jong Wook Roh
- Department of Nano & Advanced Materials Science and Engineering, Kyungpook National University, Gyeongsangbuk-Do, Daegu, 37224, Republic of Korea
| | - Yuho Min
- Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea.
- Innovative Semiconductor Education and Research Center for Future Mobility, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Sungwon Lee
- Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-Daero, Hyeonpung-Myeon, Dalseong-Gun, Daegu, 711-873, Republic of Korea.
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2
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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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3
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Sun XQ, Li YF, Chen L, Li HB, Gao RH, Liu J, Yang TY, Guo Z. Universal Gas-Sensitive Detection of Various Lithium-Ion Battery Electrolyte Leakages via Ag@Ag 2O-Functionalized SnO 2 Nanoflowers with Abundant Oxygen Vacancies. Anal Chem 2025; 97:3589-3599. [PMID: 39915085 DOI: 10.1021/acs.analchem.4c05997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2025]
Abstract
Lithium-ion batteries (LIBs) provide many benefits, but trace electrolyte leakage can cause serious safety risks such as thermal runaway. Although gas sensors offer a potential solution, the complexity of electrolyte solvents in LIBs makes it challenging to develop sensing materials capable of universally detecting multiple solvent molecules. Here, Ag@Ag2O-functionalized SnO2 nanoflowers were synthesized using a self-template pyrolysis strategy for the sensitive detection of both common solvent molecules and widely used electrolytes. These sensors, enhanced by abundant oxygen vacancies introduced by Ag@Ag2O functionalization, exhibit excellent sensitivity, particularly to dimethyl carbonate, with a response of 106-100 ppm, a low detection limit of 11.76 ppb, and rapid response/recovery times (28/55 s) at an operating temperature of 200 °C. The sensor performance was validated by density functional theory calculations, which corroborated the effectiveness of the sensing material. In simulated LIB leakage scenarios, such as puncture and electrolyte injection, the sensors demonstrated quick responses to various common electrolyte compositions, indicating their potential for practical applications. This study highlights an effective method for fabricating composite sensing materials and emphasizes the practical significance of our universal detection approach for practical monitoring of electrolyte leakage in energy storage devices.
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Affiliation(s)
- Xi-Qian Sun
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Yun-Feng Li
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Li Chen
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Hong-Bao Li
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Ren-Hui Gao
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Jie Liu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Tian-Yu Yang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
| | - Zheng Guo
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, P. R. China
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Basak HK, Adak MK, Rajput A, Chakraborty B. Low Pt Loading on Wolframite-Type NiWO 4 to Excel the Electrocatalytic Water Splitting and Ammonia Oxidation Reaction. ACS APPLIED MATERIALS & INTERFACES 2025; 17:9391-9406. [PMID: 39874301 DOI: 10.1021/acsami.4c20564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2025]
Abstract
Hydrogen production via water-splitting or ammonia electrolysis using transition metal-based electrodes is one of the most cost-effective approaches. Herein, ca. 1-4% of Pt atoms are stuffed into a wolframite-type NiWO4 lattice to improve the electrocatalytic efficiency. The co-existence of atomically dilute quantities of Pt0 and PtIV atoms in the NiWO4 without altering the lattice structure is established via powder X-ray diffraction, inductively coupled plasma mass spectrometry (ICP-MS), core-level X-ray photoelectron spectroscopy, and other spectroscopic studies. While the undoped NiWO4 and a physical mixture of Pt0 (2 wt %) and NiWO4 exhibit poor oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and ammonia oxidation reaction (AOR) activities, 3-4% Pt-enriched NiWO4 depict improved electrocatalytic performances with at least 50 mV overpotential drop for both the OER and HER. The 3%Pt/NiWO4 electrode showcases a long-term (for 110 h) chronoamperometric/chronopotentiometric OER and HER performance, delivering high current at a low working potential. The bifunctional behavior of the material leads to the development of a water-splitting electrolyzer, 3%Pt/NiW/NF(-)/(+)3%Pt/NiW/NF, achieving >90% Faradaic efficiency for H2 production. The onset potential for the AOR is also cathodically shifted for 3%Pt/NiW and 4%Pt/NiW compared to the NiWO4 itself. Electrokinetic study through a rotating ring-disk electrode (RRDE) experiment and the Koutecký-Levich study provides an observed rate constant (kobs) of 1.68 × 10-3 cm s-1 of AOR with a 6e- count from the kinetic current region, highlighting [NO2]- as the major product. The electrolysis of 1 M NH3 using 4%Pt/NiW/NF as a working electrode produces predominantly [NO2]- (FE: 53%) and [NO3]- (FE: 30%). The improved electrocatalytic activity of 3-4% Pt-enriched NiWO4 can be due to the low Tafel slope and charge transfer resistance (Rct). Pt0 being electron-rich induces facile electronic conduction during electrocatalysis and enhances a better binding of the analytes such as H2O, [OH]-, and NH3. At the same time, the PtIV centers present adjacent to the NiII sites can polarize the electron density to stabilize NiIII species and enhance the possibility of OER and AOR. This study demonstrates the effect of hetero-metal doping to tune the electronic structure to improve the electrochemical activity. The low-Pt-doped NiWO4 material is presented here as a multimodal electrocatalyst that can efficiently electrolyze water or ammonia to produce hydrogen.
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Affiliation(s)
- Hirak Kumar Basak
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Mrinal Kanti Adak
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Anubha Rajput
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Biswarup Chakraborty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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5
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Muthukutty B, Sathish Kumar P, Lee D, Lee S. Multichannel Carbon Nanofibers: Pioneering the Future of Energy Storage. ACS NANO 2024; 18:27287-27316. [PMID: 39324479 DOI: 10.1021/acsnano.4c11146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Multichannel carbon nanofibers (MCNFs), characterized by complex hierarchical structures comprising multiple channels or compartments, have attracted considerable attention owing to their high porosity, large surface area, good directionality, tunable composition, and low density. In recent years, electrospinning (ESP) has emerged as a popular synthetic technique for producing MCNFs with exceptional properties from various polymer blends, driven by phase separation between polymers. These interactions, including van der Waals forces, covalent bonding, and ionic interactions, are crucial for MCNF production. Over time, the applications of MCNFs have expanded, making them one of the most intriguing topics in material research. MCNFs with tailored porous channels, controllable dimensions, confined spaces, high surface areas, designed architectures, and easy electrolyte access to active walls are considered optimal for electrochemical energy storage (EES) technologies. This review provides an exhaustive overview of the working principle, synthesis methods, and structural properties of MCNFs, and examines their advantages, limitations, and potential for producing multichannel architectures. Furthermore, this review explores the relationship between the composition of MCNF electrode materials for EES devices (supercapacitors and batteries) and their electrochemical performance. This review also addresses future directions and challenges in the development and utilization of MCNFs and provides insights into potential research avenues for advancing this exciting field.
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Affiliation(s)
- Balamurugan Muthukutty
- Department of Mechanical Engineering, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam, Gyeonggi 13120, Republic of Korea
| | - Ponnaiah Sathish Kumar
- Magnetics Initiative Life Care Research Center, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-myeon, Dalseong-gun, Daegu 711873, Republic of Korea
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam, Gyeonggi 13120, Republic of Korea
| | - Sungwon Lee
- Department of Physics and Chemistry, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333 Techno Jungang-daero, Hyeonpung-myeon, Dalseong-gun, Daegu 711-873, Republic of Korea
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6
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Zhang M, Bai J, Sui C, Wang Y, Liu Z, Zheng T, Liu F, Liang X, Lu G. Uniform Nanocrystal Spatial Distribution-Enhanced SnO 2-based Sensor for High-Sensitivity Hydrogen Detection. ACS Sens 2024; 9:4879-4886. [PMID: 39215719 DOI: 10.1021/acssensors.4c01424] [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: 09/04/2024]
Abstract
Hydrogen (H2) is colorless, odorless, and has a wide explosive concentration range (4-75 vol %), making rapid and accurate detection of hydrogen leaks essential. This paper demonstrates a method to modify the spatial distribution of nanocrystals (NCs) by adding surfactants to improve the sensing performance. In order to explore its potential for H2 gas-sensing applications, SnO2, containing different mass percentages of PdCu NCs, was dispersed. The results show that the 0.1 wt % PdCu-SnO2 sensor based on surfactant dispersion performs well, with a response to 0.1 vol % H2 that is 18 times higher than that of the undispersed 0.1 wt % PdCu-SnO2 sensor. The enhanced gas-sensing ability after dispersion can be attributed to the fact that the uniform distribution of NCs generates higher quantum efficiency and exposes more active sites on the carrier surface compared to nonuniform distribution. This study provides a simple, novel, and effective method to improve the sensor response.
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Affiliation(s)
- Mingxue Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Jihao Bai
- Shenyang Academy of Instrumentation Science CO., LTD., Shenyang 110043, China
| | - Chengming Sui
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Yilin Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Ziqi Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Tianrun Zheng
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Fengmin Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Xishuang Liang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
| | - Geyu Lu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin Prov Key Lab Gas Sensors, Jilin University, Changchun 130012, China
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Chen X, Wang D, Xu M, Jia R, Yu D, Huang L. SnO 2/Au Microelectromechanical Systems Modified by Oxygen Vacancies for Enhanced Sensing of Dioctyl Phthalate. Chempluschem 2024; 89:e202400116. [PMID: 38654700 DOI: 10.1002/cplu.202400116] [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: 02/08/2024] [Revised: 04/08/2024] [Accepted: 04/23/2024] [Indexed: 04/26/2024]
Abstract
Dioctyl phthalate (DOP) serves as a characteristic gas utilized in early electrical fire detection, its detection offers promising prospects for the prevention of electrical fires. In this study, we employed a modified photodeposition method to prepare Tin dioxide (SnO2) materials co-modified with Au and oxygen vacancies. Subsequently, microelectromechanical systems (MEMS) gas sensor for DOP detection were fabricated, utilizing 0.5 %Au/SnO2-I as the sensing material. Characterization results reveal the presence of abundant oxygen vacancies in 0.5 %Au/SnO2-I. The synergistic interplay of Au and oxygen vacancies resulted in a remarkable response of 9.98 to 20 ppm of DOP at operational temperature of 250 °C. This represents a significant 96 % enhancement in comparison to the response value of 4.50 exhibited by pure SnO2 at 300 °C. Notably, this gas sensor boasts low power consumption and demonstrates a quick response in the detection of overheating polyvinyl chloride (PVC) cables under simulated conditions.
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Affiliation(s)
- Xue Chen
- School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029, China
| | - Danyang Wang
- School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029, China
| | - Menghan Xu
- School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029, China
| | - Rongrong Jia
- Department of Physics, Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai, 200444, P. R. China
| | - Dongqi Yu
- School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029, China
| | - Lei Huang
- Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
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Chen H, Chen H, Chen J, Song M. Gas Sensors Based on Semiconductor Metal Oxides Fabricated by Electrospinning: A Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:2962. [PMID: 38793817 PMCID: PMC11125222 DOI: 10.3390/s24102962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024]
Abstract
Electrospinning has revolutionized the field of semiconductor metal oxide (SMO) gas sensors, which are pivotal for gas detection. SMOs are known for their high sensitivity, rapid responsiveness, and exceptional selectivity towards various types of gases. When synthesized via electrospinning, they gain unmatched advantages. These include high porosity, large specific surface areas, adjustable morphologies and compositions, and diverse structural designs, improving gas-sensing performance. This review explores the application of variously structured and composed SMOs prepared by electrospinning in gas sensors. It highlights strategies to augment gas-sensing performance, such as noble metal modification and doping with transition metals, rare earth elements, and metal cations, all contributing to heightened sensitivity and selectivity. We also look at the fabrication of composite SMOs with polymers or carbon nanofibers, which addresses the challenge of high operating temperatures. Furthermore, this review discusses the advantages of hierarchical and core-shell structures. The use of spinel and perovskite structures is also explored for their unique chemical compositions and crystal structure. These structures are useful for high sensitivity and selectivity towards specific gases. These methodologies emphasize the critical role of innovative material integration and structural design in achieving high-performance gas sensors, pointing toward future research directions in this rapidly evolving field.
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Affiliation(s)
- Hao Chen
- School of Applied Science and Technology, Hainan University, Danzhou 571799, China; (H.C.); (H.C.); (J.C.)
| | - Huayang Chen
- School of Applied Science and Technology, Hainan University, Danzhou 571799, China; (H.C.); (H.C.); (J.C.)
| | - Jiabao Chen
- School of Applied Science and Technology, Hainan University, Danzhou 571799, China; (H.C.); (H.C.); (J.C.)
| | - Mingxin Song
- School of Electronic Science and Technology, Hainan University, Haikou 570228, China
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9
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Wei S, Li Z, Murugappan K, Li Z, Lysevych M, Vora K, Tan HH, Jagadish C, Karawdeniya BI, Nolan CJ, Tricoli A, Fu L. Nanowire Array Breath Acetone Sensor for Diabetes Monitoring. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309481. [PMID: 38477429 PMCID: PMC11109654 DOI: 10.1002/advs.202309481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/18/2024] [Indexed: 03/14/2024]
Abstract
Diabetic ketoacidosis (DKA) is a life-threatening acute complication of diabetes characterized by the accumulation of ketone bodies in the blood. Breath acetone, a ketone, directly correlates with blood ketones. Therefore, monitoring breath acetone can significantly enhance the safety and efficacy of diabetes care. In this work, the design and fabrication of an InP/Pt/chitosan nanowire array-based chemiresistive acetone sensor is reported. By incorporation of chitosan as a surface-functional layer and a Pt Schottky contact for efficient charge transfer processes and photovoltaic effect, self-powered, highly selective acetone sensing is achieved. The sensor has exhibited an ultra-wide acetone detection range from sub-ppb to >100 000 ppm level at room temperature, covering those in the exhaled breath from healthy individuals (300-800 ppb) to people at high risk of DKA (>75 ppm). The nanowire sensor has also been successfully integrated into a handheld breath testing prototype, the Ketowhistle, which can successfully detect different ranges of acetone concentrations in simulated breath samples. The Ketowhistle demonstrates the immediate potential for non-invasive ketone monitoring for people living with diabetes, in particular for DKA prevention.
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Affiliation(s)
- Shiyu Wei
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Zhe Li
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Krishnan Murugappan
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)Mineral ResourcesPrivate Bag 10Clayton SouthVIC3169Australia
- Nanotechnology Research LaboratoryResearch School of ChemistryCollege of ScienceThe Australian National UniversityCanberraACT2600Australia
| | - Ziyuan Li
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Mykhaylo Lysevych
- Australian National Fabrication FacilityThe Australian National UniversityCanberraACT2600Australia
| | - Kaushal Vora
- Australian National Fabrication FacilityThe Australian National UniversityCanberraACT2600Australia
| | - Hark Hoe Tan
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Chennupati Jagadish
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Buddini I Karawdeniya
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
| | - Christopher J Nolan
- School of Medicine and PsychologyCollege of Health and MedicineThe Australian National UniversityCanberraACT2600Australia
- Department of Diabetes and EndocrinologyThe Canberra HospitalGarranACT2605Australia
| | - Antonio Tricoli
- Nanotechnology Research LaboratoryResearch School of ChemistryCollege of ScienceThe Australian National UniversityCanberraACT2600Australia
- Nanotechnology Research LaboratoryFaculty of EngineeringThe University of SydneyCamperdown2006Australia
| | - Lan Fu
- Australian Research Council Centre of Excellence for Transformative Meta‐Optical SystemsDepartment of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT2600Australia
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Humayun M, Bououdina M, Usman M, Khan A, Luo W, Wang C. Designing State-of-the-Art Gas Sensors: From Fundamentals to Applications. CHEM REC 2024; 24:e202300350. [PMID: 38355899 DOI: 10.1002/tcr.202300350] [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: 11/18/2023] [Revised: 12/23/2023] [Indexed: 02/16/2024]
Abstract
Gas sensors are crucial in environmental monitoring, industrial safety, and medical diagnostics. Due to the rising demand for precise and reliable gas detection, there is a rising demand for cutting-edge gas sensors that possess exceptional sensitivity, selectivity, and stability. Due to their tunable electrical properties, high-density surface-active sites, and significant surface-to-volume ratio, nanomaterials have been extensively investigated in this regard. The traditional gas sensors utilize homogeneous material for sensing where the adsorbed surface oxygen species play a vital role in their sensing activity. However, their performance for selective gas sensing is still unsatisfactory because the employed high temperature leads to the poor stability. The heterostructures nanomaterials can easily tune sensing performance and their different energy band structures, work functions, charge carrier concentration and polarity, and interfacial band alignments can be precisely designed for high-performance selective gas sensing at low temperature. In this review article, we discuss in detail the fundamentals of semiconductor gas sensing along with their mechanisms. Further, we highlight the existed challenges in semiconductor gas sensing. In addition, we review the recent advancements in semiconductor gas sensor design for applications from different perspective. Finally, the conclusion and future perspectives for improvement of the gas sensing performance are discussed.
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Affiliation(s)
- Muhammad Humayun
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Mohamed Bououdina
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Muhammad Usman
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Abbas Khan
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
- Department of Chemistry, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Wei Luo
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
| | - Chundong Wang
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
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11
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Luo N, Cai H, Lu B, Xue Z, Xu J. Pt-functionalized Amorphous RuO x as Excellent Stability and High-activity Catalysts for Low Temperature MEMS Sensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300006. [PMID: 37086145 DOI: 10.1002/smll.202300006] [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: 01/01/2023] [Revised: 03/25/2023] [Indexed: 05/03/2023]
Abstract
The unsaturated coordination and abundant active sites endow amorphous metals with tremendous potential in improving metal oxide semiconductors' gas-sensing properties. However, the amorphous materials maintain the metastable status and easily transfer into the lower-active crystals during the gas-sensing process at high working temperatures, significantly limiting their further applications. Here, a bimetal amorphous PtRu catalyst is developed by accurately regulating the introduction of Pt species into amorphous RuOx supports to realize the highly active and stable H2 S gas-sensing detection. It is found that incorporation of low-concentration Pt species can effectively maintain the amorphous state of initial RuOx and delay the crystallization temperature as high as 100 °C. Further, ex situ XPS and in situ Raman spectroscopy analysis confirm that active Pt species can facilitate H2 S adsorption by strong Pt-S coordination and dissociate the sulfur species to the surrounding support, which contribute to the chemisorption and sensitization of H2 S. Meanwhile, electron transport at the interface between Pt, RuOx and ZnO further activates the reaction process at the surface of the gas-sensitive material. The final PtRu-modified ZnO (PtRu/ZnO) sensor enables the detection of H2 S in the ultra-low concentration range of 15-2000 ppb with remarkable stability.
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Affiliation(s)
- Na Luo
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - HaiJie Cai
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Bo Lu
- Instrumental Analysis & Research Center of Shanghai University, Shanghai, 200444, P. R. China
| | - Zhenggang Xue
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Jiaqiang Xu
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
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12
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Luo N, Guo M, Cai H, Li X, Wang X, Cheng Z, Xue Z, Xu J. Engineering a Heterophase Interface by Tailoring the Pt Coverage Density on an Amorphous Ru Surface for Ultrasensitive H 2S Detection. ACS Sens 2023; 8:2237-2246. [PMID: 37208810 DOI: 10.1021/acssensors.3c00215] [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: 05/21/2023]
Abstract
Amorphous/crystalline heterophase engineering is emerging as an attractive strategy to adjust the properties and functions of nanomaterials. Here, we reveal a heterophase interface role by precisely tailoring the crystalline Pt coverage density on an amorphous Ru surface (cPt/aRu) for ultrasensitive H2S detection. We found that when the atomic ratio of Pt/Ru increased from 10 to 50%, the loading modes of Pt changed from island coverage (1cPt/aRu) to cross-linkable coverage (3cPt/aRu) and further to dense coverage (5cPt/aRu). The differences in coverage models further regulate the chemical adsorption of H2S on Pt and the electronic transformation process on Ru, which can be proved by ex situ X-ray photoelectron spectroscopy experiments. Notably, a special cross-linkable coverage 3cPt/aRu on ZnO shows the best gas-sensitive performance, in which the operating temperature reduces from 240 to 160 °C compared with pristine ZnO and the selectivity coefficient for H2S gas improves from ∼1.2 to ∼4.6. This is mainly benefit from the maximized exposure of the amorphous/crystalline heterophase interface. Our work thus provides a new platform for future applications of amorphous/crystalline heterogeneous nanostructures in gas sensors and catalysis.
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Affiliation(s)
- Na Luo
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Mengmeng Guo
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Haijie Cai
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Xiaojie Li
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Xiaohong Wang
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Zhixuan Cheng
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Zhenggang Xue
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Jiaqiang Xu
- NEST Lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
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13
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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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14
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Liu P, Wang J, Jin H, Ge M, Zhang F, Wang C, Sun Y, Dai N. SnO 2 mesoporous nanoparticle-based gas sensor for highly sensitive and low concentration formaldehyde detection. RSC Adv 2023; 13:2256-2264. [PMID: 36741165 PMCID: PMC9837703 DOI: 10.1039/d2ra06745e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/01/2023] [Indexed: 01/15/2023] Open
Abstract
Indoor air quality detection, especially formaldehyde (HCHO) detection, is of great importance in practical application. A key limitation of promoting gas-sensing devices is the lack of sensing materials with high sensing sensitivity and selectivity. In this study, SnO2 mesoporous nanoparticles are fabricated by a facile hydrothermal route with a subsequent acid etching process. The prepared samples show high response toward HCHO (133.5, 222.8 for 100 ppm and 200 ppm HCHO, respectively) and short response/recovery time (15/22 s at 10 ppm). The excellent HCHO sensing performance benefits from the comprehensive regulation of the depletion region width, surface area and rich porosity, which is effective for the promotion of surface adsorption and catalyst activity. It is expected that the excellent sensing properties are promising for practical HCHO gas detection.
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Affiliation(s)
- Pengfei Liu
- School of Material Science and Engineering, Shanghai Jiao Tong UniversityNo. 800 Dongchuan RoadShanghai 200240PR China
| | - Jianbin Wang
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesNo. 500 Yutian RoadShanghai 200083PR China,Institute of Biomedical Optics and Optometry, Key Laboratory of Medical Optical Technology and Instruments, Ministry of Education, University of Shanghai for Science and TechnologyShanghai 200093China
| | - Han Jin
- Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong UniversityNo. 800 Dongchuan RoadShanghai 200240P. R. China
| | - Meiying Ge
- National Engineering Research Center for Nanotechnology28 East Jiang Chuan RdShanghai 200241China
| | - Fang Zhang
- National Engineering Research Center for Nanotechnology28 East Jiang Chuan RdShanghai 200241China
| | - Cheng Wang
- Institute of Biomedical Optics and Optometry, Key Laboratory of Medical Optical Technology and Instruments, Ministry of Education, University of Shanghai for Science and TechnologyShanghai 200093China
| | - Yan Sun
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesNo. 500 Yutian RoadShanghai 200083PR China,Research Center for Sensing Materials and Devices Zhejiang LabHangzhouZhejiang311121China
| | - Ning Dai
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of SciencesNo. 500 Yutian RoadShanghai 200083PR China
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15
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Chandel M, Kumar P, Arora A, Kataria S, Dubey SC, M D, Kaur K, Sahu BK, De Sarkar A, Shanmugam V. Nanocatalytic Interface to Decode the Phytovolatile Language for Latent Crop Diagnosis in Future Farms. Anal Chem 2022; 94:11081-11088. [PMID: 35905143 DOI: 10.1021/acs.analchem.2c02244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Crop diseases cause the release of volatiles. Here, the use of an SnO2-based chemoresistive sensor for early diagnosis has been attempted. Ionone is one of the signature volatiles released by the enzymatic and nonenzymatic cleavage of carotene at the latent stage of some biotic stresses. To our knowledge, this is the first attempt at sensing volatiles with multiple oxidation sites, i.e., ionone (4 oxidation sites), from the phytovolatile library, to derive stronger signals at minimum concentrations. Further, the sensitivity was enhanced on an interdigitated electrode by the addition of platinum as the dopant for a favorable space charge layer and for surface island formation for reactive interface sites. The mechanistic influence of oxygen vacancy formation was studied through detailed density functional theory (DFT) calculations and reactive oxygen-assisted enhanced binding through X-ray photoelectron spectroscopy (XPS) analysis.
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Affiliation(s)
- Mahima Chandel
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Prem Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Anu Arora
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Sarita Kataria
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Sunil Chandra Dubey
- Plant Protection and Biosafety, Indian Council of Agricultural Research, Krishi Bhawan, Dr. Rajendra Prasad Road, New Delhi, New Delhi 110001, India
| | - Djanaguiraman M
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641003, India
| | - Kamaljit Kaur
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Bandana Kumari Sahu
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Abir De Sarkar
- Quantum Materials and Devices Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Vijayakumar Shanmugam
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector- 81, Sahibzada Ajit Singh Nagar, Punjab 140306, India
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16
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Cai H, Luo N, Hu Q, Xue Z, Wang X, Xu J. Multishell SnO 2 Hollow Microspheres Loaded with Bimetal PdPt Nanoparticles for Ultrasensitive and Rapid Formaldehyde MEMS Sensors. ACS Sens 2022; 7:1484-1494. [PMID: 35482555 DOI: 10.1021/acssensors.2c00228] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Low-cost and real-time formaldehyde (HCHO) monitoring is of great importance due to its volatility, extreme toxicity, and ready accessibility. In this work, a low-cost and integrated microelectromechanical system (MEMS) HCHO sensor is developed based on SnO2 multishell hollow microspheres loaded with a bimetallic PdPt (PdPt/SnO2-M) sensitizer. The MEMS sensor exhibits a high sensitivity to HCHO ((Ra/Rg - 1) % = 83.7 @ 1 ppm), ultralow detection limit of 50 ppb, and ultrashort response/recovery time (5.0/7.0 s @ 1 ppm). These excellent HCHO sensing properties are attributed to its unique multishell hollow structure with a large and accessible surface, abundant interfaces, suitable mesoporous structure, and synergistic catalytic effects of bimetal PdPt. The well-defined multishell hollow structure also shows fascinating capacities as good hosts for noble metal loading. Therefore, PdPt bimetallic nanoparticles can be employed to construct a synergistic sensitizer with a high content and good dispersity on this multishell hollow structure, further exhibiting a reduced working temperature and ultrasensitive detection of HCHO. This PdPt/SnO2-M-based MEMS sensor presents a unique and highly sensitive means to detect HCHO, establishing its great promise for potential application in environmental monitoring.
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Affiliation(s)
- Haijie Cai
- NEST Lab, Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Na Luo
- NEST Lab, Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Qingmin Hu
- NEST Lab, Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Zhenggang Xue
- NEST Lab, Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Xiaohong Wang
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Jiaqiang Xu
- NEST Lab, Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
- NEST Lab, Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
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17
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Samira Kaghazkonani, Sadegh Afshari. Sensing C3–C10 Straight Chain Aldehydes Biomarker Gas Molecules: Density Functional Theory. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2022. [DOI: 10.1134/s199079312106018x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Liu Y, Zeng S, Ji W, Yao H, Lin L, Cui H, Santos HA, Pan G. Emerging Theranostic Nanomaterials in Diabetes and Its Complications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102466. [PMID: 34825525 PMCID: PMC8787437 DOI: 10.1002/advs.202102466] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 09/03/2021] [Indexed: 05/14/2023]
Abstract
Diabetes mellitus (DM) refers to a group of metabolic disorders that are characterized by hyperglycemia. Oral subcutaneously administered antidiabetic drugs such as insulin, glipalamide, and metformin can temporarily balance blood sugar levels, however, long-term administration of these therapies is associated with undesirable side effects on the kidney and liver. In addition, due to overproduction of reactive oxygen species and hyperglycemia-induced macrovascular system damage, diabetics have an increased risk of complications. Fortunately, recent advances in nanomaterials have provided new opportunities for diabetes therapy and diagnosis. This review provides a panoramic overview of the current nanomaterials for the detection of diabetic biomarkers and diabetes treatment. Apart from diabetic sensing mechanisms and antidiabetic activities, the applications of these bioengineered nanoparticles for preventing several diabetic complications are elucidated. This review provides an overall perspective in this field, including current challenges and future trends, which may be helpful in informing the development of novel nanomaterials with new functions and properties for diabetes diagnosis and therapy.
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Affiliation(s)
- Yuntao Liu
- School of Food & Biological EngineeringJiangsu UniversityZhenjiang212013China
- College of Food ScienceSichuan Agricultural UniversityYaan625014China
| | - Siqi Zeng
- College of Food ScienceSichuan Agricultural UniversityYaan625014China
| | - Wei Ji
- Department of PharmaceuticsSchool of PharmacyJiangsu UniversityZhenjiangJiangsu212013China
| | - Huan Yao
- Sichuan Institute of Food InspectionChengdu610097China
| | - Lin Lin
- School of Food & Biological EngineeringJiangsu UniversityZhenjiang212013China
| | - Haiying Cui
- School of Food & Biological EngineeringJiangsu UniversityZhenjiang212013China
| | - Hélder A. Santos
- Drug Research ProgramDivision of Pharmaceutical Chemistry and TechnologyFaculty of PharmacyUniversity of HelsinkiHelsinkiFI‐00014Finland
- Department of Biomedical Engineering and W.J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of Groningen/University Medical Center GroningenAnt. Deusinglaan 1Groningen9713 AVThe Netherlands
| | - Guoqing Pan
- Institute for Advanced MaterialsSchool of Materials Science and EngineeringJiangsu UniversityZhenjiangJiangsu212013China
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19
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Ravichandran S, Radhakrishnan J, Nandhiraman V, Mariappan M. Ruthenium complex infused polycaprolactone (PCL-Ru) nanofibers and their in vitro anticancer activity against human tested cancer cell lines. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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20
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Han HJ, Cho SH, Han S, Jang JS, Lee GR, Cho EN, Kim SJ, Kim ID, Jang MS, Tuller HL, Cha JJ, Jung YS. Synergistic Integration of Chemo-Resistive and SERS Sensing for Label-Free Multiplex Gas Detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105199. [PMID: 34569647 DOI: 10.1002/adma.202105199] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Practical sensing applications such as real-time safety alerts and clinical diagnoses require sensor devices to differentiate between various target molecules with high sensitivity and selectivity, yet conventional devices such as oxide-based chemo-resistive sensors and metal-based surface-enhanced Raman spectroscopy (SERS) sensors usually do not satisfy such requirements. Here, a label-free, chemo-resistive/SERS multimodal sensor based on a systematically assembled 3D cross-point multifunctional nanoarchitecture (3D-CMA), which has unusually strong enhancements in both "chemo-resistive" and "SERS" sensing characteristics is introduced. 3D-CMA combines several sensing mechanisms and sensing elements via 3D integration of semiconducting SnO2 nanowire frameworks and dual-functioning Au metallic nanoparticles. It is shown that the multimodal sensor can successfully estimate mixed-gas compositions selectively and quantitatively at the sub-100 ppm level, even for mixtures of gaseous aromatic compounds (nitrobenzene and toluene) with very similar molecular structures. This is enabled by combined chemo-resistive and SERS multimodal sensing providing complementary information.
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Affiliation(s)
- Hyeuk Jin Han
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT, 06516, USA
| | - Seunghee H 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
| | - Sangjun Han
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Electronic Materials, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Eugene N 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
| | - Sang-Joon Kim
- Environment and Sustainable Resources Research Center, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - 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
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Harry L Tuller
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Judy J Cha
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT, 06516, USA
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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21
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Shin H, Kim DH, Jung W, Jang JS, Kim YH, Lee Y, Chang K, Lee J, Park J, Namkoong K, Kim ID. Surface Activity-Tuned Metal Oxide Chemiresistor: Toward Direct and Quantitative Halitosis Diagnosis. ACS NANO 2021; 15:14207-14217. [PMID: 34170113 DOI: 10.1021/acsnano.1c01350] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Continuous monitoring of hydrogen sulfide (H2S) in human breath for early stage diagnosis of halitosis is of great significance for prevention of dental diseases. However, fabrication of a highly selective and sensitive H2S gas sensor material still remains a challenge, and direct analysis of real breath samples has not been properly attempted, to the best of our knowledge. To address the issue, herein, we introduce facile cofunctionalization of WO3 nanofibers with alkaline metal (Na) and noble metal (Pt) catalysts via the simple addition of sodium chloride (NaCl) and Pt nanoparticles (NPs), followed by electrospinning process. The Na-doping and Pt NPs decoration in WO3 grains induces the partial evolution of the Na2W4O13 phase, causing the buildup of Pt/Na2W4O13/WO3 multi-interface heterojunctions that selectively interacts with sulfur-containing species. As a result, we achieved the highest-ranked sensing performances, that is, response (Rair/Rgas) = 780 @ 1 ppm and selectivity (RH2S/REtOH) = 277 against 1 ppm ethanol, among the chemiresistor-based H2S sensors, owing to the synergistic chemical and electronic sensitization effects of the Pt NP/Na compound cocatalysts. The as-prepared sensing layer was proven to be practically effective for direct, and quantitative halitosis analysis based on the correlation (accuracy = 86.3%) between the H2S concentration measured using the direct breath signals obtained by our test device (80 cases) and gas chromatography. This study offers possibilities for direct, highly reliable and rapid detection of H2S in real human breath without the need of any collection or filtering equipment.
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Affiliation(s)
- 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
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong-Ha 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
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Wonjong Jung
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Yoon Hwa 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
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yeolho Lee
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Kiyoung Chang
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Joonhyung Lee
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Jongae Park
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Kak Namkoong
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - 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
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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22
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Zhang L, Ding J, Cui G, Zhao C, Suo H, He D. A novel electrochemical ammonia–nitrogen sensor based on carbon cloth-supported hierarchical Pt nanosheets-Ni(OH)2 nanosheets nanocomposites. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116634] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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23
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Ji S, Chen Y, Zhao X, Cai Y, Zhang X, Sun F, Chen Q, Deng Q, Wang C, Ma K, Hong B, Liang C. Surface morphology and payload synergistically caused an enhancement of the longitudinal relaxivity of a Mn 3O 4/PtO x nanocomposite for magnetic resonance tumor imaging. Biomater Sci 2021; 9:2732-2742. [PMID: 33620045 DOI: 10.1039/d0bm01993c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The construction of surface structures of manganese oxide nanoparticles (MONs) in order to promote their longitudinal relaxivity r1 to surpass those of commercially available Gd(iii) complexes is still a significant challenge. Herein, we successfully obtained Mn3O4/PtOx nanocomposites (NCs) with an r1 of 20.48 mM-1 s-1, four times higher than that of commercially available Gd-DTPA (5.11 mM-1 s-1). The r2/r1 ratio of these NCs is 1.46 lower than that of Gd-DTPA (2.38). This is the first time that such excellent T1 contrast performance has been achieved using MONs via synergistically utilizing the surface morphology and surface payload. These NCs are composed of porous Mn3O4"skeleton" nanostructures decorated with tiny PtOx nanoparticles (NPs) that are realized using laser ablation and irradiation in liquid and ion etching steps. Experimental results showed that the enlarged specific area of the porous Mn3O4/PtOx NCs and the payload of ultrafine PtOx NPs synergistically facilitated the T1 contrast capabilities. The former favors sufficient proton-electron interactions and the latter reduces the global molecular tumbling motion. These NCs also exhibit an evident computed tomography (CT) attenuation value of 24.13 HU L g-1, which is much better than that achieved using the commercial product iopromide (15.9 HU L g-1). The outstanding magnetic resonance (MR) imaging and CT imaging performances of the Mn3O4/PtOx NCs were proved through in vivo experiments. Histological examinations and blood circulation assays confirmed the good biosafety of the NCs. These novel findings showcase a brand-new strategy for fabricating excellent MON T1 contrast agents (CAs) on the basis of the surface structure and they pave the way for their practical clinical applications in dual-modal imaging.
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Affiliation(s)
- Sihan Ji
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.
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24
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Ziegler JM, Andoni I, Choi EJ, Fang L, Flores-Zuleta H, Humphrey NJ, Kim DH, Shin J, Youn H, Penner RM. Sensors Based Upon Nanowires, Nanotubes, and Nanoribbons: 2016-2020. Anal Chem 2020; 93:124-166. [PMID: 33242951 DOI: 10.1021/acs.analchem.0c04476] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joshua M Ziegler
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Ilektra Andoni
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Eric J Choi
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Lu Fang
- Department of Automation, Hangzhou Dianzi University, 1158 Second Street, Xiasha, Hangzhou 310018, China
| | - Heriberto Flores-Zuleta
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Nicholas J Humphrey
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Dong-Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Jihoon Shin
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Hyunho Youn
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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25
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Zhu R, Chen F, Wang J, Song Y, Cheng J, Mao M, Ma H, Lu J, Cheng Y. Multi-channel V-doped CoP hollow nanofibers as high-performance hydrogen evolution reaction electrocatalysts. NANOSCALE 2020; 12:9144-9151. [PMID: 32296800 DOI: 10.1039/d0nr01595d] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Rational design and construction of high-efficiency and low-cost non-noble metal-based electrocatalysts for the hydrogen evolution reaction (HER) is critical for future renewable energy systems. Herein, a multi-channel V-doped CoP (MC-V-CoP) hollow nanofiber is fabricated via electrospinning and a subsequent oxidation/phosphorization process. The formation of a multi-channel hollow structure and V doping can enlarge the exposure of active sites, facilitate the electron transfer and tune the electronic structure of the active sites, resulting in the enhancement of the HER performance. As a result, the MC-V-CoP hollow nanofiber exhibits excellent HER activity with a low overpotential of 65 and 189 mV at 10 and 300 mA cm-2 in alkaline medium, respectively. This is superior to the commercial 20 wt% Pt/C catalyst at a high current density (212 mV at 300 mA cm-2), manifesting its outstanding performance toward the HER at a high current density. In addition, the MC-V-CoP hollow nanofiber also exhibits outstanding HER activity in neutral medium. The proposed strategy for fabricating multi-channel hollow nanofibers can also be used to prepare other transition metal phosphides for advanced electrochemical applications.
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Affiliation(s)
- Ruolin Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
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26
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Oliveira TNT, Zito CA, Perfecto TM, Azevedo GM, Volanti DP. ZnO twin-rods decorated with Pt nanoparticles for butanone detection. NEW J CHEM 2020. [DOI: 10.1039/d0nj03206a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
ZnO twin-rods were synthesized using a combination of the ultrasonic spray nozzle and microwave-assisted hydrothermal methods. The VOC detection test revealed that the decoration with 2% of Pt provides a more sensitive and selective butanone sensor.
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Affiliation(s)
- Taís N. T. Oliveira
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Cecilia A. Zito
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Tarcísio M. Perfecto
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
| | - Gustavo M. Azevedo
- Institute of Physics
- Federal University of Rio Grande do Sul (UFRGS)
- Porto Alegre
- Brazil
- Brazilian Synchrotron Light Laboratory (LNLS)/CNPEM
| | - Diogo P. Volanti
- Laboratory of Materials for Sustainability (LabMatSus)
- Ibilce
- São Paulo State University (Unesp)
- S. J. Rio Preto
- Brazil
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27
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Cai H, Liu H, Ni T, Pan Y, Zhao Y, Zhu Y. Controlled Synthesis of Pt Doped SnO 2 Mesoporous Hollow Nanospheres for Highly Selective and Rapidly Detection of 3-Hydroxy-2-Butanone Biomarker. Front Chem 2019; 7:843. [PMID: 31867308 PMCID: PMC6904309 DOI: 10.3389/fchem.2019.00843] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 11/19/2019] [Indexed: 12/19/2022] Open
Abstract
Listeria monocytogenes (L. monocytogenes) has been recognized as one of the extremely hazardous and potentially life-threatening food-borne pathogens, its real-time monitoring is of great importance to human health. Herein, a simple and effective method based on platinum sensitized tin dioxide semiconductor gas sensors has been proposed for selective and rapid detection of L. monocytogenes. Pt doped SnO2 nanospheres with particular mesoporous hollow structure have been synthesized successfully through a robust and template-free approach and used for the detection of 3-hydroxy-2-butanone biomarker of L. monocytogenes. The steady crystal structure, unique micromorphology, good monodispersit, and large specific surface area of the obtained materials have been confirmed by X-ray diffraction (XRD), Raman spectroscopy, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray Photoelectron Spectroscopy (XPS), Brunauer-Emmett-Teller (BET), and Photoluminescence spectra (PL). Pt doped SnO2 mesoporous hollow nanosphere sensors reach the maximum response of 3-hydroxy-2-butanone at 250°C. Remarkably, sensors based on SnO2 mesoporous hollow nanospheres with 0.16 wt% Pt dopant exhibit excellent sensitivity (Rair/Rgas = 48.69) and short response/recovery time (11/20 s, respectively) to 10 ppm 3-hydroxy-2-butanone at the optimum working temperature. Moreover, 0.16 wt% Pt doped SnO2 gas sensors also present particularly low limit of detection (LOD = 0.5 ppm), superb long-term stability and prominent selectivity to 3-hydroxy-2-butanone. Such a gas sensor with high sensing performance foresees its tremendous application prospects for accurate and efficient detection of foodborne pathogens for the food security and public health.
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Affiliation(s)
- Haijie Cai
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Haiquan Liu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Tianjun Ni
- School of Basic Medicine, Xinxiang Medical University, Xinxiang, China
| | - Yingjie Pan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
| | - Yongheng Zhu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai, China
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28
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Koo W, Kim S, Jang J, Kim D, Kim I. Catalytic Metal Nanoparticles Embedded in Conductive Metal-Organic Frameworks for Chemiresistors: Highly Active and Conductive Porous Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900250. [PMID: 31728270 PMCID: PMC6839632 DOI: 10.1002/advs.201900250] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/09/2019] [Indexed: 05/22/2023]
Abstract
Conductive porous materials having a high surface reactivity offer great promise for a broad range of applications. However, a general and scalable synthesis of such materials remains challenging. In this work, the facile synthesis of catalytic metal nanoparticles (NPs) embedded in 2D metal-organic frameworks (MOFs) is reported as highly active and conductive porous materials. After the assembly of 2D conductive MOFs (C-MOFs), i.e., Cu3(hexahydroxytriphenylene)2 [Cu3(HHTP)2], Pd or Pt NPs are functionalized within the cavities of C-MOFs by infiltration of metal ions and subsequent reduction. The unique structure of Cu3(HHTP)2 with a cavity size of 2 nm confines the bulk growth of metal NPs, resulting in ultra-small (≈2 nm) and well-dispersed metal NPs loaded in 2D C-MOFs. The Pd or Pt NPs-loaded Cu3(HHTP)2 exhibits remarkably improved NO2 sensing performance at room temperature due to the high reactivity of catalytic metal NPs and the high porosity of C-MOFs. The catalytic effect of Pd and Pt NPs on NO2 sensing of Cu3(HHTP)2, in terms of reaction rate kinetics and activation energy, is demonstrated.
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Affiliation(s)
- Won‐Tae Koo
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
- Advanced Nanosensor Research CenterKI NanocenturyKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
| | - Sang‐Joon Kim
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
- Present address:
Department of Materials Science and EngineeringMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Ji‐Soo Jang
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
- Advanced Nanosensor Research CenterKI NanocenturyKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
| | - Dong‐Ha Kim
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
- Advanced Nanosensor Research CenterKI NanocenturyKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
| | - Il‐Doo Kim
- Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
- Advanced Nanosensor Research CenterKI NanocenturyKorea Advanced Institute of Science and Technology (KAIST)291 Daehak‐roYuseong‐guDaejeon34141Republic of Korea
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29
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Zhu P, Li S, Jiang X, Wang Q, Fan F, Yan M, Zhang Y, Zhao P, Yu J. Noninvasive and Wearable Respiration Sensor Based on Organic Semiconductor Film with Strong Electron Affinity. Anal Chem 2019; 91:10320-10327. [PMID: 31267731 DOI: 10.1021/acs.analchem.9b02811] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Interventional medical detection techniques require expensive devices and cause inconvenience and discomfort to the human body, which restricts their application to the frequency and duration of measurements. A noninvasive respiration test is urgently required for the next-generation medical technologies in early disease warning and postoperative monitoring. This article describes a noninvasive and wearable sensing device that shows high sensitivity toward acetone in respiratory gases with excellent stability, low energy consumption, and reliable flexibility. To obtain such a sensor, the organic semiconductor compound La(TBPP)(TBNc) (TBPP = tetrakis(4-tert-butylphenyl)porphyrin; TBNc = tetrakis(4-tert-butylphenyl)naphthalocyanine) was synthesized and further self-assembled into a highly ordered flexible film via a simple solution-vapor annealing method. The fabricated flexible film was deposited on an interdigitated electrode with poly(ethylene terephthalate) substrate and employed as an electrical identification component for a respiration sensor. Thanks to the attractive electron-transfer properties of highly ordered films and strong electron affinity of La(TBPP)(TBNc) molecules, the as-prepared sensor shows a low detection limit (200 ppb) and acceptable selectivity. The wrinkled/rippled structure of films endows the fabricated sensors with the ability of mechanical flexibility. More importantly, the experimental results suggest the potential application of acetone identification in real respiratory gases and provide a new concept for the development of noninvasive and wearable medical diagnostic devices.
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Affiliation(s)
- Peihua Zhu
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Shanshan Li
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Xinyue Jiang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Qian Wang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Fuqing Fan
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials , University of Jinan , Jinan 250022 , People's Republic of China
| | - Mei Yan
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Yan Zhang
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China.,Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials , University of Jinan , Jinan 250022 , People's Republic of China
| | - Peini Zhao
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering , University of Jinan , Jinan 250022 , People's Republic of China
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30
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Liu W, Zhou X, Xu L, Zhu S, Yang S, Chen X, Dong B, Bai X, Lu G, Song H. Graphene quantum dot-functionalized three-dimensional ordered mesoporous ZnO for acetone detection toward diagnosis of diabetes. NANOSCALE 2019; 11:11496-11504. [PMID: 31112195 DOI: 10.1039/c9nr00942f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The development of a high-performance semiconductor oxide sensor for the accurate detection of trace disease biomarkers in exhaled breath is still a challenge that urgently needs to be addressed. Here, we proposed a self-assembly strategy and spin-coating process to create a graphene quantum dot (GQD)-functionalized three-dimensional ordered macroporous (3DOM) ZnO structure. The strong synergistic effect and the p-n heterojunction between the p-type GQDs and n-type ZnO effectively enlarged the resistance variation due to the change in oxygen adsorption. The specific 3DOM structure induced a hierarchical pore size (286 nm in macroscale and 26 nm in mesoscale) and 3D interconnection, which guaranteed high gas accessibility and fast carrier transportation. As a result, the GQD-modified 3DOM ZnO sensor exhibited a remarkably high response (Rair/Rgas = 15.2 for 1 ppm acetone), rapid response/recovery time (9/16 s), extremely low theoretical detection limit (8.7 ppb), and good selectivity towards acetone against other interfering gases. In particular, the proposed sensor could accurately distinguish trace acetone in the simulated breath of diabetic patients. These results demonstrate a high potential for the feasibility of the GQD-modified 3DOM SMO structure as a new sensing material for the possibility of noninvasive real-time diagnosis of diabetes.
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Affiliation(s)
- Wei Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China.
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31
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Zhang S, Liu H, Tang N, Ge J, Yu J, Ding B. Direct electronetting of high-performance membranes based on self-assembled 2D nanoarchitectured networks. Nat Commun 2019; 10:1458. [PMID: 30926802 PMCID: PMC6441005 DOI: 10.1038/s41467-019-09444-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/11/2019] [Indexed: 12/26/2022] Open
Abstract
There is an increasing demand worldwide on advanced two-dimensional (2D) nanofibrous networks with applications ranging from environmental protection and electrical devices to bioengineering. Design of such nanoarchitectured materials has been considered a long-standing challenge. Herein, we report a direct electronetting technology for the fabrication of self-assembled 2D nanoarchitectured networks (nano-nets) from various materials. Tailoring of the precursor solution and of the microelectric field allows charged droplets, which are ejected from a Taylor cone, to levitate, deform and phase separate before they self-assemble a 2D nanofibre network architecture. The fabricated nano-nets show mechanical robustness and benefit from nanostructural properties such as enhanced surface wettability, high transparency, separation and improved air filtration properties. Calcination of the nano-nets results in the formation of carbon nano-nets with electric conductivity and titanium dioxide nano-nets with bioprotective properties.
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Affiliation(s)
- Shichao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Hui Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Ning Tang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Jianlong Ge
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, Shanghai, 201620, China.
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 200051, China.
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32
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Detection of Triacetone Triperoxide (TATP) Precursors with an Array of Sensors Based on MoS₂/RGO Composites. SENSORS 2019; 19:s19061281. [PMID: 30871286 PMCID: PMC6472037 DOI: 10.3390/s19061281] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 03/06/2019] [Accepted: 03/08/2019] [Indexed: 02/04/2023]
Abstract
Triacetone triperoxide (TATP) is a self-made explosive synthesized from the commonly used chemical acetone (C₃H₆O) and hydrogen peroxide (H₂O₂). As C₃H₆O and H₂O₂ are the precursors of TATP, their detection is very important due to the high risk of the presence of TATP. In order to detect the precursors of TATP effectively, hierarchical molybdenum disulfide/reduced graphene oxide (MoS₂/RGO) composites were synthesized by a hydrothermal method, using two-dimensional reduced graphene oxide (RGO) as template. The effects of the ratio of RGO to raw materials for the synthesis of MoS₂ on the morphology, structure, and gas sensing properties of the MoS₂/RGO composites were studied. It was found that after optimization, the response to 50 ppm of H₂O₂ vapor was increased from 29.0% to 373.1%, achieving an increase of about 12 times. Meanwhile, all three sensors based on MoS₂/RGO composites exhibited excellent anti-interference performance to ozone with strong oxidation. Furthermore, three sensors based on MoS₂/RGO composites were fabricated into a simple sensor array, realizing discriminative detection of three target analytes in 14.5 s at room temperature. This work shows that the synergistic effect between two-dimensional RGO and MoS₂ provides new possibilities for the development of high performance sensors.
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Yin G, Sun J, Zhang F, Yu W, Peng F, Sun Y, Chen X, Xu L, Lu J, Luo C, Ge M, He D. Enhanced gas selectivity induced by surface active oxygen in SnO/SnO2 heterojunction structures at different temperatures. RSC Adv 2019; 9:1903-1908. [PMID: 35516116 PMCID: PMC9059712 DOI: 10.1039/c8ra09965k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 12/28/2018] [Indexed: 01/12/2023] Open
Abstract
The development of heterojunction structures has been considered as an important step for sensing materials.
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Jeong YJ, Kim DH, Jang JS, Kang JY, Kim R, Kim ID. Bio-inspired heterogeneous sensitization of bimetal oxides on SnO2 scaffolds for unparalleled formaldehyde detection. Chem Commun (Camb) 2019; 55:3622-3625. [DOI: 10.1039/c8cc09882d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NiO/Fe2O3–SnO2 fiber-in-tubes showed remarkably enhanced sensing properties and superior cross-sensitivity toward sub-ppm levels of formaldehyde.
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Affiliation(s)
- Yong Jin Jeong
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Joon-Young Kang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Rheehyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Republic of Korea
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Zhang T, Tang X, Zhang J, Zhou T, Wang H, Wu C, Xia X, Xie C, Zeng D. Metal-Organic Framework-Assisted Construction of TiO 2/Co 3O 4 Highly Ordered Necklace-like Heterostructures for Enhanced Ethanol Vapor Sensing Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14577-14585. [PMID: 30423250 DOI: 10.1021/acs.langmuir.8b02620] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we report a metal-organic framework (MOF)-assisted strategy to synthesize necklace-like TiO2/Co3O4 nanofibers with highly ordered heterostructures via a facile approach including electrospinning and subsequent calcination. Polycrystalline TiO2 nanofibers and Co3O4 nanocages are consummately interconnected to form a highly ordered heterogeneous nanostructure, which can be of benefit for precisely accommodating the interface resistance of the p-n heterojunctions and the future realization of improved material performance. The ethanol-gas-sensing investigation showed that TiO2/Co3O4 nanofiber sensors exhibited a strong ethanol response ( Rair/ Rgas -1 = 16.7 @ 150 ppm) and a low operating temperature of 150 °C. The sensing enhancement mechanism of the TiO2/Co3O4 nanofibers is related to the formation of heterojunctions at interfaces and the high catalytic activity of MOF-derived Co3O4. Furthermore, this versatile method is a promising approach to constructing ordered heterostructures and extending the MOF-based heterogeneous materials toward wide applications.
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Affiliation(s)
- Tian Zhang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials , Hubei University , Wuhan 430062 , P. R. China
| | - Xing Tang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Jian Zhang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
- Research School of Engineering, College of Engineering and Computer Science , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Tingting Zhou
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Hao Wang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Congyi Wu
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Xianping Xia
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Changsheng Xie
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
| | - Dawen Zeng
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering , Huazhong University of Science and Technology (HUST) , Wuhan 430074 , P. R. China
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials , Hubei University , Wuhan 430062 , P. R. China
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Jeong YJ, Koo WT, Jang JS, Kim DH, Cho HJ, Kim ID. Chitosan-templated Pt nanocatalyst loaded mesoporous SnO 2 nanofibers: a superior chemiresistor toward acetone molecules. NANOSCALE 2018; 10:13713-13721. [PMID: 29989640 DOI: 10.1039/c8nr03242d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we introduce a chitosan-Pt complex (CS-Pt) as an effective template for catalytic Pt sensitization and creation of abundant mesopores in SnO2 nanofibers (NFs). The Pt particles encapsulated by the CS exhibit ultrasmall size (∼2.6 nm) and high dispersion characteristics due to repulsion between CS molecules. By combining CS-Pt with electrospinning, mesoporous SnO2 NFs uniformly functionalized with the Pt catalyst (CS-Pt@SnO2 NFs) are synthesized. Particularly, numerous mesopores with diameters of ∼20 nm form through the decomposition of CS, while a small SnO2 grain size (14.32 nm) is achieved by the pinning effect of CS. It is observed that CS-Pt@SnO2 NFs exhibit outstanding response (Rair/Rgas = 141.92 at 5 ppm), excellent selectivity, stability, and fast response (12 s)/recovery (44 s) speed toward 1 ppm of acetone at 350 °C and high humidity (90% RH). In addition, by applying an exponential fitting tool to experimental response values toward 0.1-5 ppm of acetone, it is estimated that CS-Pt@SnO2 NFs can detect 5 ppb of acetone with a notable response (Rair/Rgas = 2.9). Furthermore, the sensor array based on CS-Pt@SnO2 NFs, CS-driven SnO2 NFs, polyol-Pt loaded SnO2 NFs, and dense SnO2 NFs obviously classifies simulated diabetic breath and healthy human breath by using a pattern recognition tool. These results clearly demonstrate that mesoporous SnO2 NFs, particularly functionalized with CS-Pt templated nanocatalysts, open up a new class of sensing layers offering high sensitivity and selectivity.
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Affiliation(s)
- Yong Jin Jeong
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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Abstract
Metal oxide materials have been applied in different fields due to their excellent functional properties. Metal oxides nanostructuration, preparation with the various morphologies, and their coupling with other structures enhance the unique properties of the materials and open new perspectives for their application in the food industry. Chemical gas sensors that are based on semiconducting metal oxide materials can detect the presence of toxins and volatile organic compounds that are produced in food products due to their spoilage and hazardous processes that may take place during the food aging and transportation. Metal oxide nanomaterials can be used in food processing, packaging, and the preservation industry as well. Moreover, the metal oxide-based nanocomposite structures can provide many advantageous features to the final food packaging material, such as antimicrobial activity, enzyme immobilization, oxygen scavenging, mechanical strength, increasing the stability and the shelf life of food, and securing the food against humidity, temperature, and other physiological factors. In this paper, we review the most recent achievements on the synthesis of metal oxide-based nanostructures and their applications in food quality monitoring and active and intelligent packaging.
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