Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7233669 | Biosensors and Bioelectronics | 2014 | 6 Pages |
Abstract
Copper nanoparticles (NPs) decorated nitrogen-doped graphene (Cu-N-G) was prepared by a facile thermal treatment, and further employed as a novel sensing material for fabricating the sensitive non-enzymatic glucose sensor. Compared with pure Cu NPs, the Cu-N-G showed enhanced electrocatalytic activity to glucose oxidation due to the integration of N-G, which exhibited the oxidation peak current of glucose ca. 23-fold higher than that of pure Cu NPs. The presented sensor showed excellent performances for glucose detection including wide linear range of 0.004-4.5 mM, low detection limit (1.3 μM, S/N=3), high sensitivity (48.13 μA mMâ1), fast response time (<5 s), good selectivity to the general coexisted interferences, etc. Such properties would promote the potential application of the nitrogen-doped graphene as enhanced materials in fabricating sensors for chemical and biochemical analysis.
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Authors
Ding Jiang, Qian Liu, Kun Wang, Jing Qian, Xiaoya Dong, Zhenting Yang, Xiaojiao Du, Baijing Qiu,