TITLE

Electron transfer mechanism of cytochrome c at graphene electrode

AUTHOR(S)
Alwarappan, Subbiah; Joshi, Rakesh K.; Ram, Manoj K.; Kumar, Ashok
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/28/2010, Vol. 96 Issue 26, p263702
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the direct electron transfer of cytochrome c (Cyt c) observed at graphene electrodes. Graphene nanosheets were chemically synthesized and immobilized on to a glassy carbon electrode. Cyclic voltammetry of Cyt c in phosphate buffered saline was performed at these electrodes. Results indicated a pair of reversible redox waves with a peak-to-peak separation value of 0.07 V in a diffusion controlled electrochemical process. Furthermore, the voltammetric response of these electrodes in Cyt c were found to be stable over time with negligible electrode fouling toward Cyt c.
ACCESSION #
51975709

 

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