THE MODIFICATION OF ENZYME ELECTRODE PROPERTIES WITH NONCONDUCTING ELECTROPOLYMERIZED FILMS

Phenol and several phenol derivatives have been electropolymerised on to platinum anodes. The selective properties of the modified electrode s were dependent on the final polymeric structure. Although essentiall y nonconducting, dual phenolic films could be deposited on electrode s urfaces. This was achieved by the initial deposition of a porous polym er formed from, phenol red, followed by the more diffusion limiting fi lm of oxidised phenol. The resulting composite film showed the combine d selective characteristics of the two component polymers. Attempts to enhance polymeric film selectivity via the incorporation of charged o r neutral surfactants are outlined. The characteristics of glucose oxi dase incorporated into (poly)phenol films are discussed.