Issue 6, 2012

Potentiometric glucose biosensing using camphor sulfonic acid doped polyaniline

Abstract

In this work, we explored the possibility of developing an enzymatic potentiometric glucose biosensor using polyaniline–camphorsulfonic acid–glucose oxidase (PANI–CSA–GOD) composite films. Glucose oxidase was covalently immobilized on the polyaniline–camphorsulfonic acid modified electrode that was used as a potentiometric sensor matrix. The PANI–CSA–GOD transducer responded linearly to glucose molecules in the concentration range of 1 to 50 mM and the sensitivity was found to be 0.09 mV mM−1. The modified electrode showed excellent sensitivity and better selectivity in the presence of some common interfering molecules.

Graphical abstract: Potentiometric glucose biosensing using camphor sulfonic acid doped polyaniline

Article information

Article type
Paper
Submitted
01 Mar 2012
Accepted
23 Mar 2012
First published
27 Mar 2012

Anal. Methods, 2012,4, 1838-1842

Potentiometric glucose biosensing using camphor sulfonic acid doped polyaniline

T. Sowmiya, A. Ananthi, S. Anandhakumar and J. Mathiyarasu, Anal. Methods, 2012, 4, 1838 DOI: 10.1039/C2AY25215E

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