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

Rong, Lian-Qing and Yang, Chen and Qian, Qing-Yun and Xia, Xing-Hua (2007) Study of the nonenzymatic glucose sensor based on highly dispersed Pt nanoparticles supported on carbon nanotubes. TALANTA, 72 (2). pp. 819-824.

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Official URL: http://dx.doi.org/10.1016/j.talanta.2006.12.037

Abstract

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.

Item Type:Article
Uncontrolled Keywords:carbon nanotubes; platinum; nonenzymatic biosensor; glucose; electroanalysis
Subjects:Analytical Science > Nanotechnology for sensing and actuating
Material Science > Nanochemistry
ID Code:3216
Deposited By:Anuj Seth
Deposited On:14 Jan 2009 15:29
Last Modified:20 Jan 2009 16:03

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