WIRING OF GLUCOSE-OXIDASE WITHIN A HYDROGEL MADE WITH POLYVINYL IMIDAZOLE COMPLEXED WITH [(OS-4,4'-DIMETHOXY-2,2'-BIPYRIDINE)CL](+ 2+)/

Glucose electrodes based on hydrogels made by crosslinking glucose oxi dase and the redox polymer formed upon complexing polyvinyl imidazole (PVI) with [os(dmo-bpy)(2)Cl](+/2+) (dmo-bpy = 4,4'-dimethoxy-2,2'-bip yridine) on vitreous carbon electrode surfaces were investigated. The redox potential of the hydrogels was -69 mV (SCE) and their glucose el ectrooxidation current reached a plateau at +50 mV (SCE). Urate and ac etaminophen were not electrooxidized at this potential at rates that w ould interfere with the glucose assays. At 32 mM glucose concentration switching of the atmosphere from argon to O-2 reduced the current onl y by 5%.