High Performance of DET-type Bioelectrocatalysis of Cytochrome c on Indium Tin Oxide Film Electrode with Enzyme-sized Nanostructure

Kyoko YOSHIOKA; Dai KATO; Tomoyuki KAMATA; Osamu NIWA

doi:10.5796/electrochemistry.82.322

Communications

High Performance of DET-type Bioelectrocatalysis of Cytochrome c on Indium Tin Oxide Film Electrode with Enzyme-sized Nanostructure

Kyoko YOSHIOKA, Dai KATO, Tomoyuki KAMATA, Osamu NIWA

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Keywords: Indium Tin Oxide, Cytochrome c, Enzyme-sized Surface Structure, Direct Electron Transfer

JOURNAL FREE ACCESS

2014 Volume 82 Issue 5 Pages 322-324

DOI https://doi.org/10.5796/electrochemistry.82.322

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Abstract

Polycrystalline indium tin oxide (ITO) film has a rough enzyme-sized surface structure, which efficiently enhances the direct electron transfer (DET) caused by the electrocatalytic activity of cytochrome c (cyt c). It is explained that the heme iron of cyt c was sufficiently close to the polycrystalline ITO electrode to achieve DET. Polycrystalline ITO is a suitable material for the enzyme-modified electrode of an electrochemical biosensor.

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