Electrochemical reaction of cytochrome c on polyaspartic acid modified gold electrodes

Yuzuru Iwasaki, Osamu Niwa, Masao Morita

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Gold electrodes were modified with a polyaspartic acid thin film as a macromolecular recognition element for electrochemical reactions. The effect of electrode modification on the direct electron transfer reaction of cytochrome c was examined. Cytochrome c exhibited quasi-reversible redox reaction on the polyaspartic acid modified gold electrode. The ionic strength dependence and reactivity of the charged redox species suggested that the polyaspartic acid layer provided a matrix structure of charge groups which formed an attractive environment for the electron transfer reaction of cytochrome c.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalSensors and Materials
Volume11
Issue number1
Publication statusPublished - 1999 Dec 1
Externally publishedYes

Keywords

  • Cytochrome c
  • Modified electrode
  • Molecular recognition
  • Polyaspartic acid

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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