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A New Technique for Chemical Deposition of Pt Nanoparticles and its Applications on Biosensor Design

✍ Scribed by Aifang Wang; Xiaoyan Ye; Pingang He; Yuzhi Fang

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 647 KB
Volume: 19
Category: Article
ISSN: 1040-0397
DOI: 10.1002/elan.200703890

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✦ Synopsis

Abstract

A new glucose biosensor design based on glucose oxidase (GOD) immobilized by polypyrrole has been described in this paper. The polymerization of pyrrole was initiated by a hexachloroplatinate which itself was reduced into Pt nanoparticles and thus served as a catalyst for the H~2~O~2~ oxidation. Properties of the produced GOD modified electrode were examined and the activity of the entrapped enzyme was determined by basic application on the amperometric detection of glucose. Much better results were found comparatively with the enzyme electrode for which the enzyme was entrapped by the electrochemically polymerized polypyrrole. This kind of technique for Pt nanoparticles deposition can be generalized to many cases where polypyrrole is used.

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