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Nanomaterials 2017, 7(2), 36;

Non-Enzymatic Glucose Sensor Composed of Carbon-Coated Nano-Zinc Oxide

Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan
Department of Materials Physics, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
Author to whom correspondence should be addressed.
Academic Editors: Hao-chung Kuo, Chien-chung Lin and Kai Wang
Received: 5 January 2017 / Revised: 31 January 2017 / Accepted: 7 February 2017 / Published: 10 February 2017
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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 μA/cm2mM, 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. View Full-Text
Keywords: zinc oxide nanorod; carbon material; glucose; non-enzymatic electrochemical biosensor zinc oxide nanorod; carbon material; glucose; non-enzymatic electrochemical biosensor

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Chung, R.-J.; Wang, A.-N.; Liao, Q.-L.; Chuang, K.-Y. Non-Enzymatic Glucose Sensor Composed of Carbon-Coated Nano-Zinc Oxide. Nanomaterials 2017, 7, 36.

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