Abstract

The electrochemical behavior of the redox reaction of cytochrome c was examined on a gold electrode modified by various ad-atom species (Cu, Sn, As, Sb, Bi, S and Se). It was demonstrated that direct electron transfer of cytochrome c at a gold electrode is promoted by S or As ad-atoms. The enhancement effects by S and As ad-atoms are maxima at coverages of 0.6 and 0.4, respectively.

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