A novel nonenzymatic electrochemical glucose sensor modified with Ni/Al layered double hydroxide

被引：47

作者：

Chen, Zhengbo ^{[1
]}

Guo, Junxia ^{[2
]}

Zhou, Tong ^{[1
]}

Zhang, Youwei ^{[3
]}

Chen, Liang ^{[1
]}

机构：

[1] Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China

[2] Railway Police Coll, Zhengzhou 450053, Peoples R China

[3] Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2013年 / 109卷

关键词：

Ni/Al layered double hydroxide; Glucose; Sensor; Electrochemical; ELECTRODES; FILMS;

D O I：

10.1016/j.electacta.2013.08.017

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel cheap and simple enzymeless glucose sensor, based on flower-shaped Ni/Al layered double hydroxide (LDH) modified glassy carbon electrode (GCE), has been successfully fabricated. Cyclic voltammetry (CV) revealed that Ni/Al-LDH nanoflowers exhibited direct electrocatalytic activities similar to that found in natural peroxidases for the oxidation of glucose in an alkaline solution. The very good linear relationship toward glucose can be obtained in two regions: 1-100 mu M and 0.5-21 mM, with a detection limit of 0.11 mu M. The proposed nonenzymatic sensor can be used for the assay of glucose in real samples. In addition, the glucose sensor also exhibited excellent stability, good reproducibility, and high selectivity. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：532 / 535

页数：4

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