期刊
NANOTECHNOLOGY
卷 29, 期 13, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aaaa2c
关键词
CuTCNQ; nanorod array; non-enzymatic; electrochemical; glucose sensor
资金
- National Natural Science Foundation of China [21705103]
- Doctor Fund of Shanxi Normal University [0505/02070404]
- Natural Science Foundation of Shanxi Normal University [0505/02080123]
- 1331 Engineering of Shanxi Province
It is highly attractive to construct stable enzyme-free glucose sensors based on three-dimensional direct electrochemical detection of glucose. In this paper, a copper 7,7,8,8-tetracyanoquinodimethane (Cu(TCNQ)) nanorod array on Cu foam(Cu(TCNQ) NA/CF) is proposed as an efficient catalyst for electrochemical glucose oxidation in alkaline conditions. When Cu(TCNQ) NA/CF was used as the enzyme-free sensory of glucose, the sensor showed a response time within 3 s, a wide linear detection in the range 0.001-10.0 mM, the minimum limit of detection was as low as 10 nM (S/N = 3), and it had a high sensitivity of 26 987 mu A mM(-1) cm(-2). Moreover, this sensor also possesses long-term stability, high selectivity, reproducibility, and actual applications for fresh human serum sample analysis is also successfully accepted.
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