CYCLIC VOLTAMMETRY OF FERROCENECARBOXYLIC ACID MONOMOLECULAR FILMS AND THEIR REACTION WITH GLUCOSE-OXIDASE

Monomolecular films of ferrocene derivatives (FD) and of glucose oxida se (GOD) have been formed on a graphite electrode by the Langmuir-Scha efer (LS) method with the help of amphiphilic polymers. Cyclic voltamm ograms of these films and of their interaction with glucose oxidase we re studied. Ferrocenecarboxylic acid, incorporated into polymeric matr ices by adsorption to a monomolecular polymer film or by the direct mi xing with a polymer solution before LB-film formation: retain their me diator properties in the reaction with GOD, The amperometric response of a graphite electrode with immobilized multilayer films containing p olymer matrices, ferrocenecarboxylic acid and GOD were linear over the range 1-20 mM of glucose.