Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
ISSN-L : 1344-3542
Communications
Glucose Sensor Based on Au-Pt Black Electrode-Preparation of Functionally Different Sites on Electrode Surface
Osamu TAKEIShigeru TOYAMAMasayuki SOMEYATomoko KUROKAWARon USAMIKoki HORIKOSIYoshihito IKARIYAMA
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JOURNALS OPEN ACCESS

2001 Volume 69 Issue 12 Pages 956-958

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Abstract

An enzyme sensor (glucose sensor) based on a composite metal (Au and Pt) black electrode, which was fabricated by simultaneously codepositing gold and platinum electrode, has been developed. In this sensor, enzyme was immobilized at the gold sites on the electrode surface, and the enzymatic product was oxidized at platinum sites. The largest current response was obtained when the electrode was prepared in an electrodepositional solution containing 40:60 mol% gold and platinum complexes. The existence of such an optimal mixing ratio suggested functionally different roles of gold and platinum sites on the electrode.

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© 2001 The Electrochemical Society of Japan
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