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Li G, Zheng Y, Hu G, Chen B, Gu Y, Yang J, Yang H, Hu F, Li C, Guo C. Boosting Photo-Electro-Fenton Process Via Atomically Dispersed Iron Sites on Graphdiyne for InVitro Hydrogen Peroxide Detection. Small 2023; 19:e2301540. [PMID: 37093555 DOI: 10.1002/smll.202301540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/28/2023] [Indexed: 05/03/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is essential in oxidative stress and signal regulation of organs of animal body. Realizing in vitro quantification of H2 O2 released from organs is significant, but faces challenges due to short lifetime of H2 O2 and complex bio-environment. Herein, rationally designed and constructed a photoelectrochemical (PEC) sensor for in vitro sensing of H2 O2 , in which atomically dispersed iron active sites (Hemin) modified graphdiyne (Fe-GDY) serves as photoelectrode and catalyzes photo-electro-Fenton process. Sensitivity of Fe-GDY electrode is enhanced 8 times under illumination compared with dark condition. The PEC H2 O2 sensor under illumination delivers a wide linear range from 0.1 to 48 160 µm and a low detection limit of 33 nm, while demonstrating excellent selectivity and stability. The high performance of Fe-GDY is attributed to, first, energy levels matching of GDY and Hemin that effectively promotes the injection of photo-generated electrons from GDY to Fe3+ for reduced Fe2+ , which facilitates the Fe3+ /Fe2+ cycle. Second, the Fe2+ actively catalyzes H2 O2 to OH- through the Fenton process, thereby improving the sensitivity. The PEC sensor demonstrates in vitro quantification of H2 O2 released from different organs, providing a promising approach for molecular sensing and disease diagnosis in organ levels.
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Affiliation(s)
- Ge Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yan Zheng
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Guangxuan Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Bo Chen
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yu Gu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Jianyu Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Hongbin Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Fangxin Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Changming Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Chunxian Guo
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
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Si H, Huang G, Liao J, Fisher AC, Lin S. Light-Activated Interface Charge-Alternating Interaction on an Extended Gate Photoelectrode: A New Sensing Strategy for EGFET-Based Photoelectrochemical Sensors. ACS Appl Mater Interfaces 2023; 15:11866-11874. [PMID: 36826809 DOI: 10.1021/acsami.2c22970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Integration of extended gate field-effect transistors (EGFET) and photoelectrochemical (PEC) measurement to construct highly sensitive sensors is an innovative research field that was proven feasible by our previous work. However, it remains a challenge on how to adjust the interaction between the extended gate and the analyte and study its influence on EGFET-based PEC sensors. Herein, a new sensing strategy was proposed by a mutual electrostatic interaction. Three-dimensional TiO2 and g-C3N4 core-shell heterojunction on flexible carbon cloth (TCN) was designed as the extended sensing gate. Tetracycline (TC) was also used as a model analyte, and it contains electron-donating groups (-NH2 and -OH) with negative charge. The designed TCN-extended sensing gate was negatively charged in the dark by introducing carbon vacancies with oxygen doping in the g-C3N4 shell, while it was positively charged under illustration due to the aggregation of photogenerated holes on the surface. Therefore, a light-activated PEC sensing platform for the sensitive and selective determination of tetracycline (TC) was demonstrated. Such a PEC sensor exhibited wide linear ranges within 100 pM to 1 μM and 1-100 μM with a low detection limit of 0.42 pM. Furthermore, the sensing platform possessed excellent selectivity, good reproducibility, and stability. The proposed sensing strategy in this work can expand the paradigm for developing a light-regulated FET-based PEC sensor by mutual electrostatic interaction, and we believe that this work will offer a new perspective for the design of interface interaction in PEC devices.
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Affiliation(s)
- Hewei Si
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China
| | - Gu Huang
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China
| | - Jianjun Liao
- School of Ecology and Environment, Hainan University, Haikou, Hainan 570228, China
| | - Adrian C Fisher
- Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, United Kingdom
| | - Shiwei Lin
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, Hainan 570228, China
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Radhakrishnan S, Lakshmy S, Santhosh S, Kalarikkal N, Chakraborty B, Rout CS. Recent Developments and Future Perspective on Electrochemical Glucose Sensors Based on 2D Materials. Biosensors (Basel) 2022; 12:bios12070467. [PMID: 35884271 PMCID: PMC9313175 DOI: 10.3390/bios12070467] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 05/09/2023]
Abstract
Diabetes is a health disorder that necessitates constant blood glucose monitoring. The industry is always interested in creating novel glucose sensor devices because of the great demand for low-cost, quick, and precise means of monitoring blood glucose levels. Electrochemical glucose sensors, among others, have been developed and are now frequently used in clinical research. Nonetheless, despite the substantial obstacles, these electrochemical glucose sensors face numerous challenges. Because of their excellent stability, vast surface area, and low cost, various types of 2D materials have been employed to produce enzymatic and nonenzymatic glucose sensing applications. This review article looks at both enzymatic and nonenzymatic glucose sensors made from 2D materials. On the other hand, we concentrated on discussing the complexities of many significant papers addressing the construction of sensors and the usage of prepared sensors so that readers might grasp the concepts underlying such devices and related detection strategies. We also discuss several tuning approaches for improving electrochemical glucose sensor performance, as well as current breakthroughs and future plans in wearable and flexible electrochemical glucose sensors based on 2D materials as well as photoelectrochemical sensors.
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Affiliation(s)
- Sithara Radhakrishnan
- Centre for Nano and Material Science, Jain University, Jain Global Campus, Jakkasandra, Ramanagara, Bangalore 562 112, Karnataka, India;
| | - Seetha Lakshmy
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India; (S.L.); (S.S.); (N.K.)
| | - Shilpa Santhosh
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India; (S.L.); (S.S.); (N.K.)
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India; (S.L.); (S.S.); (N.K.)
- School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686 560, Kerala, India
- School of Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam 686 560, Kerala, India
| | - Brahmananda Chakraborty
- High Pressure and Synchroton Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, Maharashtra, India
- Homi Bhabha National Institute, Mumbai 400 094, Maharashtra, India
- Correspondence: (B.C.); or (C.S.R.)
| | - Chandra Sekhar Rout
- Centre for Nano and Material Science, Jain University, Jain Global Campus, Jakkasandra, Ramanagara, Bangalore 562 112, Karnataka, India;
- Correspondence: (B.C.); or (C.S.R.)
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Liu J, Bao S, Wang X. Applications of Graphene-Based Materials in Sensors: A Review. Micromachines (Basel) 2022; 13:mi13020184. [PMID: 35208308 PMCID: PMC8880160 DOI: 10.3390/mi13020184] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 12/26/2022]
Abstract
With the research and the development of graphene-based materials, new sensors based on graphene compound materials are of great significance to scientific research and the consumer market. However, in the past ten years, due to the requirements of sensor accuracy, reliability, and durability, the development of new graphene sensors still faces many challenges in the future. Due to the special structure of graphene, the obtained characteristics can meet the requirements of high-performance sensors. Therefore, graphene materials have been applied in many innovative sensor materials in recent years. This paper introduces the important role and specific examples of sensors based on graphene and its base materials in biomedicine, photoelectrochemistry, flexible pressure, and other fields in recent years, and it puts forward the difficulties encountered in the application of graphene materials in sensors. Finally, the development direction of graphene sensors has been prospected. For the past two years of the COVID-19 epidemic, the detection of the virus sensor has been investigated. These new graphene sensors can complete signal detection based on accuracy and reliability, which provides a reference for researchers to select and manufacture sensor materials.
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Qin Y, Wen J, Zheng L, Yan H, Jiao L, Wang X, Cai X, Wu Y, Chen G, Chen L, Hu L, Gu W, Zhu C. Single-Atom-Based Heterojunction Coupling with Ion-Exchange Reaction for Sensitive Photoelectrochemical Immunoassay. Nano Lett 2021; 21:1879-1887. [PMID: 33544604 DOI: 10.1021/acs.nanolett.1c00076] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Benefiting from the maximum atom-utilization efficiency and distinct structural features, single-atom catalysts open a new avenue for the design of more functional catalysts, whereas their bioapplications are still in their infancy. Due to the advantages, platinum single atoms supported by cadmium sulfide nanorods (Pt SAs-CdS) are synthesized to build an ultrasensitive photoelectrochemical (PEC) biosensing platform. With the decoration of Pt SAs, the PEC signal of CdS is significantly boosted. Furthermore, theory calculations indicate the positively charged Pt SAs could change the charge distribution and increase the excited carrier density of CdS. Meanwhile, it also suggests that Cu2+ can severely hinder the photoexcitation and electron-hole separation of CdS. As a proof of concept, prostate-specific antigen is chosen as the target analyte to demonstrate the superiority of the Pt SAs-CdS-based PEC sensing system. As a result, the PEC biosensor based on Pt SAs-CdS exhibits outstanding detection sensitivity and promising applicability.
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Affiliation(s)
- Ying Qin
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Jing Wen
- Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Hongye Yan
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Lei Jiao
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Xiaosi Wang
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Xiaoli Cai
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Yu Wu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Guojuan Chen
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Lijuan Chen
- Department of Medical Imaging, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, P. R. China
| | - Liuyong Hu
- Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Wenling Gu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Chengzhou Zhu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
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Pang Y, Chen H, Yang J, Wang B, Yang Z, Lv J, Pan Z, Xu G, Shen Z, Wu Y. Rational Regulation of Surface Free Radicals on TiO 2 Nanotube Arrays via Ag 2O-AgBiO 3 towards Enhanced Selective Photoelectrochemical Detection. Nanomaterials (Basel) 2020; 10:E2002. [PMID: 33050572 PMCID: PMC7600186 DOI: 10.3390/nano10102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 11/17/2022]
Abstract
Due to integrated advances in photoelectrochemical (PEC) functionalities for environment detection applications, one-dimensional (1D) TiO2 nanostructures provide a new strategy (PEC sensors) towards organics detection in wastewater. However, the unidealized selectivity to the oxidation of water and organics limits the PEC detection performance. Herein, we designed a ternary photoanode consisting of Ag2O-AgBiO3/TiO2 nanotube arrays (NTAs) to solve this issue by using a facile one-step precipitation reaction. High oxidation capacity for organics is achieved by regulating the surface free radicals properly through the heterostructure formed between the interface of TiO2 and AgBiO3. More importantly, as a trap for electron capture, Ag2O in this ternary system could not only further improve the separation efficiency of charge carriers, but also capture electrons transferred to the TiO2 conduction band, thus reducing the electrons transferred to the external circuit and the corresponding background photocurrent when detecting organics. As a result, the reconstructed TiO2 NTAs decrease their photocurrent response to water and enhance their response to organics, thus presenting lower oxidation activity to water and higher activity to organics, that is, highly selective oxidation characteristics. This work provides more insights into the impact of charge transfer and surface free radicals on developing promising and efficient PEC sensors for organics.
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Affiliation(s)
- Yajun Pang
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Hao Chen
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Jin Yang
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Bo Wang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhenyu Yang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Jun Lv
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574, Singapore;
| | - Guangqing Xu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
| | - Zhehong Shen
- School of Engineering, Zhejiang A&F University, Hangzhou 311300, China; (Y.P.); (J.Y.); (Z.S.)
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; (B.W.); (Z.Y.); (J.L.); (Y.W.)
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Mansuriya BD, Altintas Z. Applications of Graphene Quantum Dots in Biomedical Sensors. Sensors (Basel) 2020; 20:E1072. [PMID: 32079119 PMCID: PMC7070974 DOI: 10.3390/s20041072] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 01/02/2023]
Abstract
Due to the proliferative cancer rates, cardiovascular diseases, neurodegenerative disorders, autoimmune diseases and a plethora of infections across the globe, it is essential to introduce strategies that can rapidly and specifically detect the ultralow concentrations of relevant biomarkers, pathogens, toxins and pharmaceuticals in biological matrices. Considering these pathophysiologies, various research works have become necessary to fabricate biosensors for their early diagnosis and treatment, using nanomaterials like quantum dots (QDs). These nanomaterials effectively ameliorate the sensor performance with respect to their reproducibility, selectivity as well as sensitivity. In particular, graphene quantum dots (GQDs), which are ideally graphene fragments of nanometer size, constitute discrete features such as acting as attractive fluorophores and excellent electro-catalysts owing to their photo-stability, water-solubility, biocompatibility, non-toxicity and lucrativeness that make them favorable candidates for a wide range of novel biomedical applications. Herein, we reviewed about 300 biomedical studies reported over the last five years which entail the state of art as well as some pioneering ideas with respect to the prominent role of GQDs, especially in the development of optical, electrochemical and photoelectrochemical biosensors. Additionally, we outline the ideal properties of GQDs, their eclectic methods of synthesis, and the general principle behind several biosensing techniques.
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Affiliation(s)
| | - Zeynep Altintas
- Technical University of Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany;
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Abstract
Metal-organic frameworks (MOFs) are attracting considerable attention because of their unique structural properties, such as high surface areas, tunable pore sizes, and open metal sites, which enable them to have potential applications in gas storage, catalysis, sensors, drug release, and separation. Also, MOFs can be fabricated and functionalized as electrochemically functional frameworks with perfect electrochemical properties and electrocatalytic activities. This review focuses on the electroanalytical applications of MOFs between 2010 and 2014 years.
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Affiliation(s)
- Lida Fotouhi
- a Department of Chemistry , Faculty of Physics & Chemistry, Alzahra University , Tehran , Iran
| | - Maryam Naseri
- a Department of Chemistry , Faculty of Physics & Chemistry, Alzahra University , Tehran , Iran
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