Accession Number : ADA294498

Title :   Wiring of Glucose Oxidase within a Hydrogel Made with Polyvinyl Imidazole Complexed with (Os-4,4-dimethyl 2,2'-bipyridine)Cl+/2+.

Descriptive Note : Technical rept. 1 Jan 94-31 May 95,

Corporate Author : TEXAS UNIV AT AUSTIN DEPT OF CHEMICAL ENGINEERING

Personal Author(s) : Taylor, Chris ; Katakis, Gregg ; Heller, Adam ; Rajagopalan, Ravi

PDF Url : ADA294498

Report Date : 30 MAY 1995

Pagination or Media Count : 21

Abstract : Glucose electrodes based c)n hydrogels made by crosslinking glucose oxydise and the redo polymer formed upon complexing polyvinyl imidazole (PVI) with /Os(dmo-bpy)22C1+/2+ (dmo-bpy = 44 dimethoxy-2,2'-bipyridine) on vitreous carbon electrode surfaces were investigated. The redox potential of the hydrogels was -69 mV (SCE) and their glucose electrooxidation current reached a plateau at +50 mV (SCE). Urate and acetaminophen were not electrooxidized at this potential at rates that would interfere with the glucose assays. At 32 mM glucose concentration switching of the atmosphere from argon to 02 reduced the current only by 5%.

Descriptors :   *ENZYMES, *ELECTROCHEMISTRY, *OXIDATION, *ELECTRODES, *GLUCOSE, *LACTATES, *OXIDOREDUCTASES, RATES, CARBON, SURFACES, CROSSLINKING(CHEMISTRY), ASSAYING, OXIDATION REDUCTION REACTIONS, VINYL PLASTICS, VITREOUS STATE.

Subject Categories : Polymer Chemistry
      Biochemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE