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Nickel Single-Atom Catalyst-Mediated Efficient Redox Cycle Enables Self-Checking Photoelectrochemical Biosensing with Dual Photocurrent Readouts

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成果类型:
期刊论文
作者:
Tan, Rong;Qin, Ying;Liu, Mingwang;Wang, Hengjia;Li, Jinli;...
通讯作者:
Gu, Wenling(wlgu@ccnu.edu.cn);Zhu, Chengzhou(czzhu@ccnu.edu.cn);Hu, Liuyong(huly@wit.edu.cn)
作者机构:
[Qin, Ying; Luo, Zhen; Zhu, Chengzhou; Liu, Mingwang; Li, Jinli; Tan, Rong; Gu, Wenling; Wang, Hengjia] Cent China Normal Univ Wuhan, Coll Chem, Int Joint Res Ctr Intelligent Biosensing Technol &, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Hubei, Peoples R China.
[Hu, Liuyong] Wuhan Inst Technol, Hubei Engn Technol Res Ctr Optoelect & New Energy, Hubei Key Lab Plasma Chem & Adv Mat, Email:, Wuhan 430205, Hubei, Peoples R China.
通讯机构:
[Liuyong Hu] H
[Wenling Gu; Chengzhou Zhu] K
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, Hubei 430079, P.R. China<&wdkj&>Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, Wuhan Institute of Technology, Wuhan, Hubei 430205, P.R. China
语种:
英文
关键词:
single-atom catalysts;photoelectrochemical biosensing;photocurrent polarity switching;self-checking;acetylcholinesterase activity assay
期刊:
ACS SENSORS
ISSN:
2379-3694
年:
2023
卷:
8
期:
1
页码:
263-269
基金类别:
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (no. 22104114), Fundamental Research Funds for the Central Universities (CCNU22JC006), Natural Science Foundation of Hubei Province (2021CFB518), the Open Funds of Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology (no. OHIC2021Y01), and the Program of Introducing Talents of Discipline to Universities of China (111 program, B17019).
机构署名:
本校为第一机构
院系归属:
化学学院
摘要:
Developing a self-checking photoelectrochemical biosensor with dual photocurrent signals could efficiently eliminate false-positive or false-negative signals. Herein, a novel biosensor with dual photocurrent responses was established for the detection of acetylcholinesterase activity. To achieve photocurrent polarity-switchable behavior, the iodide/tri-iodide redox couple was innovatively introduced to simultaneously consume the photoexcited electrons and holes, which circumvents the inconvenience caused by the addition of different hole- and e...

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