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Cyclic voltammetry of ferrocenecarboxylic acid monomolecular films and their reaction with glucose oxidase

✍ Scribed by Anatoli V. Barmin; Arkadi V. Eremenko; Ilya N. Kurochkin; Andrei A. Sokolovsky


Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
427 KB
Volume
6
Category
Article
ISSN
1040-0397

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✦ Synopsis


Abstract

Monomolecular films of ferrocene derivatives (FD) and of glucose oxidase (GOD) have been formed on a graphite electrode by the Langmuir‐Schaefer (LS) method with the help of amphiphilic polymers. Cyclic voltammograms of these films and of their interaction with glucose oxidase were studied. Ferrocenecarboxylic acid, incorporated into polymeric matrices by adsorption to a monomolecular polymer film or by the direct mixing with a polymer solution before LB‐film formation, retain their mediator properties in the reaction with GOD. The amperometric response of a graphite electrode with immobilized multilayer films containing polymer matrices, ferrocenecarboxylic acid and GOD were linear over the range 1–20 mM of glucose.