期刊
JOURNAL OF MATERIALS CHEMISTRY B
卷 8, 期 11, 页码 2363-2370出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tb00082e
关键词
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资金
- Finance Science and Technology Project of Hainan Province [ZDYF2018106, 2019RC221]
- National Natural Science Foundation of China [51762012, 81860373]
- Key Laboratory Open Project Fund of Hainan University [2018008]
- Research Unit of Island Emergency Medicine of Chinese Academy of Medical Sciences [2019RU013]
- Key Laboratory Open Project Fund of Emergency and Trauma of Ministry of Education [KLET-201910]
Ultra-high sensitivity is difficult to achieve using conventional enzymatic glucose biosensors due to the lack of exposed active sites and steric-hinderance effects. Thus, in the present study, we report a photoelectrochemical (PEC) enzymatic glucose biosensor based on 3-dimensional (3D) hollow-out titanium dioxide (TiO2) nanowire cluster (NWc)/glucose oxidase (GOx), providing more number of exposed active sites, thus constructing a sensor with a higher affinity toward glucose reaction. Excellent performance with an ultra-high sensitivity of 58.9 mu A mM(-1) cm(-2) and 0-2 mM linear range with a determination limit of 8.7 mu M was obtained for the detection of glucose. This study might provide a new approach to expose active sites efficiently for remarkable photoelectrochemical performances.
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