Polyaniline Working Electrodes For Glucose Sensing

A simple technique has been applied to the development of a glucose amperometric sensor by electro polymerizing aniline on platinum coated working electrode. The carboxyl-reactive groups of glucose oxidase were entrapped into the conductive layer of polyaniline formed on the electrode. The modified electrodes have been investigated by cyclic voltammetry, single potential step chronoamperometry and optical microscopy. The functionality of the chemically modified electrode was demonstrated and has been obtained by applying recording the chronoamperometry in presence of glucose concentrations at a low constant voltage of 220 mV.