Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
Communications
Graphene Modified Electrode for the Direct Electron Transfer of Bilirubin Oxidase
Shunsuke SHIBAJunji INOUEDai KATOKyoko YOSHIOKAOsamu NIWA
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JOURNALS OPEN ACCESS

Volume 83 (2015) Issue 5 Pages 332-334

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Abstract

We fabricated graphene modified glassy carbon (Gr/GC) electrodes to enhance the direct electron transfer (DET) of bilirubin oxidase (BOD) by casting graphene-dispersed solutions with different concentrations. With a concentration of 2 µg µL−1, a large increase was observed in the reduction current at the BOD-modified Gr/GC electrode, and the value was 74 times that of a BOD-modified GC electrode (unmodified with graphene). Moreover, with graphene modification the capacitance increase was much less than with other carbon materials including carbon black and graphite powder. These results demonstrate that a graphene nanostructure is suitable for achieving the efficient DET of BOD.

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© 2015 The Electrochemical Society of Japan
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