Journal
NANOMATERIALS
Volume 7, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/nano7020036
Keywords
zinc oxide nanorod; carbon material; glucose; non-enzymatic electrochemical biosensor
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Funding
- Ministry of Science and Technology of the Republic of China [MOST 103-2221-E-027-027, MOST 104-2221-E-027-061]
- National Taipei University of Technology-University of Science and Technology Beijing Joint Research Program [NTUT-USTB-103-01]
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Nowadays glucose detection is of great importance in the fields of biological, environmental, and clinical analyzes. In this research, we report a zinc oxide (ZnO) nanorod powder surface-coated with carbon material for non-enzymatic glucose sensor applications through a hydrothermal process and chemical vapor deposition method. A series of tests, including crystallinity analysis, microstructure observation, and electrochemical property investigations were carried out. For the cyclic voltammetric (CV) glucose detection, the low detection limit of 1 mM with a linear range from 0.1 mM to 10 mM was attained. The sensitivity was 2.97 mu A/cm(2)mM, which is the most optimized ever reported. With such good analytical performance from a simple process, it is believed that the nanocomposites composed of ZnO nanorod powder surface-coated with carbon material are promising for the development of cost-effective non-enzymatic electrochemical glucose biosensors with high sensitivity.
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