Immobilization of glucose oxidase on carbon paper electrodes modified with conducting polymer and its application to a glucose fuel cell

Bioelectrochemistry
Takashi KuwaharaMasato Shimomura

Abstract

A carbon paper electrode was modified with the conducting copolymer of 3-methylthiopene and thiophene-3-acetic acid prepared electrochemically on the electrode, and an enzyme electrode was fabricated by covalent immobilization of glucose oxidase on the modified electrode. The modification with the conducting copolymer increased the surface area of the electrode and the amount of the immobilized enzyme. As a result, the enzyme electrode showed a high catalytic activity. Moreover, it was found that the increased surface area led to a high rate of electron transfer reaction between the electrode and p-benzoquinone employed as an electron mediator. The enzyme electrode fabricated with the modified carbon paper gave a larger glucose oxidation current than that fabricated with the bare one. In addition, the glucose oxidation current was found to increase with increasing content of the conducting copolymer in the modified carbon paper. Corresponding to the large glucose oxidation current, high performance was confirmed for the glucose fuel cell constructed with the enzyme electrode based on the modified carbon paper.

References

Jun 28, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Jung Min SongMasahiro Watanabe
Apr 7, 2007·Physical Chemistry Chemical Physics : PCCP·Yuji KamitakaKenji Kano

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Citations

Mar 19, 2013·Materials Science & Engineering. C, Materials for Biological Applications·Murat Ates
Mar 1, 2013·Materials Science & Engineering. C, Materials for Biological Applications·Murat KaradagSuna Timur
May 15, 2012·Colloids and Surfaces. B, Biointerfaces·Eylül BaşkurtLevent Toppare
Nov 25, 2011·Enzyme and Microbial Technology·Camilo E La Rotta HErnesto R González
Jan 9, 2010·Biosensors & Bioelectronics·Chang LiuChen-Zhong Li
Sep 5, 2009·Biosensors & Bioelectronics·Cheng-Teng HsuJyh-Myng Zen

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