Direct electrochemistry of cytochrome c at nanocrystalline boron-doped diamond

Shannon Haymond, Gerald T. Babcock, Greg M. Swain*

*Corresponding author for this work

Research output: Contribution to journalArticle

83 Scopus citations

Abstract

Direct electron transfer of horse heart cytochrome c is measured at a nanocrystalline boron-doped diamond thin-film electrode. A quasi-reversible, diffusion-controlled cyclic voltammetric response is observed for untreated diamond. The peak currents change linearly with the concentration, and importantly, there is no electrode fouling. The results, observed for a hydrogen-terminated and uncharged surface, (i.e., no ionizable carbon-oxygen functional groups), raise interesting questions about the necessary surface interactions of cytochrome c for relatively rapid electrode kinetics.

Original languageEnglish (US)
Pages (from-to)10634-10635
Number of pages2
JournalJournal of the American Chemical Society
Volume124
Issue number36
DOIs
StatePublished - Sep 11 2002

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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