A portable micro glucose sensor based on copper-based nanocomposite structure
Journal article, 2019
Precisely detecting the concentration of glucose in the human body is an attractive way to prevent or treat diabetes. Portable glucose sensors with non-enzymatic catalytic materials have received great attention in recent years. Herein, a facile strategy for fabricating a high-performance electrochemical sensor is proposed. A non-enzymatic three-electrode integrated glucose sensor device based on CuO nano-coral arrays/nanoporous Cu (NCA/NPC) is designed and fabricated. The portable NCA/NPC glucose sensor device exhibits high catalytic activity for glucose. The great performance of the NCA/NPC glucose sensor device derives from the excellent conductivity of the NPC substrate and the high electrocatalytic activity of CuO nano-coral arrays. This device exhibits a high sensitivity of 1621 μA mM -1 cm -2 in the linear range of 0.0005-5.0 mM, low detection limit of 200 nM (S/N = 3), fast response time of 3 s, good anti-interference performance, excellent repeatability and considerable stability for glucose detection. This work will certainly provide an efficient structure and proper catalytic material choices for future non-enzymatic glucose sensors.
Author
Huang Chen
Sun Yat-Sen University
Guangzhou Mecart Smart Technology Research Institute
Guokang Fan
Sun Yat-Sen University
Guangzhou Mecart Smart Technology Research Institute
Jie Zhao
South China University of Technology
Meijia Qiu
Sun Yat-Sen University
Peng Sun
Guangzhou Mecart Smart Technology Research Institute
Sun Yat-Sen University
Yifeng Fu
Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems
Dongxue Han
Guangzhou University
Chinese Academy of Sciences
Guofeng Cui
Guangzhou Mecart Smart Technology Research Institute
Sun Yat-Sen University
New Journal of Chemistry
1144-0546 (ISSN) 1369-9261 (eISSN)
Vol. 43 20 7806-7813Subject Categories
Medical Laboratory and Measurements Technologies
Analytical Chemistry
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1039/c9nj00888h