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Issue 20, 1996
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‘Wiring’ of glucose oxidase and lactate oxidase within a hydrogel made with poly(vinyl pyridine) complexed with [Os(4,4′-dimethoxy-2,2′-bipyridine)2Cl]+/2+

Abstract

Glucose and lactate electrodes based on hydrogels made by crosslinking glucose oxidase and the redox polymer formed upon complexing poly(vinyl pyridine)(PVP) with [Os(dmo-bpy)2Cl]+/2+(dmo-bpy = 4,4′-dimethoxy-2,2′-bipyridine) on vitreous carbon electrode surfaces have been investigated. The redox potential of the hydrogels was +35 mV vs. SCE and their glucose electrooxidation current reached a plateau at +150 mV vs. SCE. Urate and acetaminophen were not electrooxidized at this potential at rates that would interfere with the glucose and lactate assays. At a glucose concentration of 1 mM, the addition of 0.1 mM ascorbate increased the current by 17%. At 5 mM glucose, switching the atmosphere from argon to oxygen reduced the currents by 11%.

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Article type: Paper
DOI: 10.1039/FT9969204131
Citation: J. Chem. Soc., Faraday Trans., 1996,92, 4131-4136
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    ‘Wiring’ of glucose oxidase and lactate oxidase within a hydrogel made with poly(vinyl pyridine) complexed with [Os(4,4′-dimethoxy-2,2′-bipyridine)2Cl]+/2+

    G. Kenausis, C. Taylor, I. Katakis and A. Heller, J. Chem. Soc., Faraday Trans., 1996, 92, 4131
    DOI: 10.1039/FT9969204131

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