Direct Electron Communication Between Glucose Oxidase and Carbon Electrode Covered with Polypyrrole

Abstract

Abstract: Glucose oxidase can be effectively adsorbed onto the polypyrrole (PPy) thin film electrochemically formed on an anodized galssy carbon electrode (GCEa). Direct electron communication between the redox of GODand the modified electrode was successfully achieved, which was detected using cyclic voltammetry. GODentrapped in PPy film still remained its biological activity and could catalyze the oxidation of glucose. As a third generation biosensor, GOD-PPy/GCEa responded linearly up to 20 mMglucose with a wider linear concentration range.

Key words: Biosensor, Polypyrrole, Anodization, Glucose oxidase

CHI Qi-jin, DONG Shao-jun. Direct Electron Communication Between Glucose Oxidase and Carbon Electrode Covered with Polypyrrole[J]. Chemical Research in Chinese Universities, 1996, 12(1): 37-43.

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Direct Electron Communication Between Glucose Oxidase and Carbon Electrode Covered with Polypyrrole

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