Ultrasensitive non-enzymatic glucose sensors based on different copper oxide nanostructures by in-situ growth

被引:93
作者
Zhong, Yan [1 ]
Shi, Tielin [1 ,2 ]
Liu, Zhiyong [1 ]
Cheng, Siyi [1 ]
Huang, Yuanyuan [1 ]
Tao, Xiangxu [1 ]
Liao, Guanglan [1 ,2 ]
Tang, Zirong [1 ,2 ]
机构
[1] Huazhong Univ Sci & Technol, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
基金
美国国家科学基金会;
关键词
Copper oxide nanostructures; In-situ growth; Glucose; Non-enzymatic biosensor; WALLED CARBON NANOTUBE; ION BATTERY ANODES; CUO NANOPARTICLES; MODIFIED ELECTRODE; ARRAYS; FIBER; FABRICATION; NANOWIRES; GRAPHENE; NANOCOMPOSITE;
D O I
10.1016/j.snb.2016.06.020
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Different nanostructures of copper oxide (CuO) by in-situ growth on carbon clothes (CC) are prepared to develop ultrasensitive non-enzymatic glucose sensors. The electrochemical performance of the CuO-based electrodes for detecting glucose has been investigated by cyclic voltammetry (CV) and chronoamperometry. The CuO nanosheets (CuO NSs)/CC electrode demonstrates a high sensitivity of 4902 mu A mM(-1) cm(-2) at an applied potential of 0.55 V (vs. Ag/AgCl/3 M KCl) in alkaline solution, and it shows 2973 mu A mM(-1) cm(-2) and 1246 mu A mM(-1) cm(-2) for the CuO nanowires (CuO NWs)/CC and CuO nanoparticles (CuO NPs)/CC, respectively. Ascribing to high conductivity of CC, high specific surface-area from CuO nanostructures, and facilitated charge transfer through in-situ grown structure, the electrodes demonstrate ultrasensitive, selective, stable and fast amperometric sensing (<3 s) of glucose, which presents a new strategy to develop non-enzymatic glucose sensors. (C) 2016 Elsevier B.V. All Rights reserved.
引用
收藏
页码:326 / 333
页数:8
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