Effects of conducting polymers on immobilized galactose oxidase

Based on the doping principle of conducting polymers, galactose oxidase immobilized in the polyaniline film shows a good bioelectrochemical response to galactose, but no bioelectrochemical response is observed for galactose oxidase immobilized in the polypyrrole film. The results from scanning tunneling microscopy (STM) images, Raman spectra and infrared reflectance spectra reveal that galactose oxidase is doped into the polyaniline film, but is not doped into the polypyrrole film.