Study of the nonenzymatic glucose sensor based on highly dispersed Pt nanoparticles supported on carbon nanotubes

被引：284

作者：

Rong, Lian-Qing

Yang, Chen

Qian, Qing-Yun

Xia, Xing-Hua ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci, Nanjing 210093, Peoples R China

[2] Pingxiang Coll, Dept Chem Engn, Pingxiang 337055, Peoples R China

来源：

TALANTA | 2007年 / 72卷 / 02期

基金：

中国国家自然科学基金;

关键词：

carbon nanotubes; platinum; nonenzymatic biosensor; glucose; electroanalysis;

D O I：

10.1016/j.talanta.2006.12.037

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An amperometric biosensor for sensitive and selective detection of glucose has been constructed by using highly dispersed Pt nanoparticles supported on carbon nanotubes (Pt-MWCNTs) as sensing interface. The Pt-MWCNTs were synthesized by using the two-step pyrolysis method. This composite shows good electrocatalytic activity towards the oxidation of glucose in alkaline and thus can be used to selectively detect glucose. We found that detection potential and Nafion amount covered on the Pt-MWCNTs modified glassy carbon electrode had considerable influence on the selectivity for amperometric detection of glucose. Under optimal detection conditions (detection potential of 0.0V versus SCE and 10 mu L 1.5% Nafion), selective detection of glucose in the glucose concentration range of 1.0-26.5 mM (correlation coefficient, > 0.999) can be performed. The results demonstrate that the Pt-MWCNTs composite is promising for the fabrication of nonenzymatic glucose sensors. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：819 / 824

页数：6

共 33 条

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