In situ analysis of the removal behavior of protein adsorbed on a titanium surface by H2O2-electrolysis treatment

Koreyoshi Imamura, Takaharu Sakiyama, Kazuhiro Nakanishi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The kinetics of the removal of β-lactoglobulin (β-Lg) adsorbed to a titanium surface using a method involving the electrolysis of hydrogen peroxide (H2O2-electrolysis treatment) was examined. The rate of decrease in the thickness of the layer β-Lg adsorbed to the titanium surface during the H2Q2-electrolysis treatment was measured in situ by ellipsometry. The rate for this process followed first-order reaction kinetics. Relationships between the rate constant for removal and such factors as the H2O2 concentration, the potential applied to the titanium surface, the supporting electrolyte concentration, and temperature were experimentally studied. The rate of removal of the adsorbed β-Lg from a stainless steel surface was found to be much slower than that from a titanium surface, indicating that the type of metal also affects the removal characteristics during the H2O2-electrolysis treatment.

Original languageEnglish
Pages (from-to)8033-8039
Number of pages7
JournalLangmuir
Volume18
Issue number21
DOIs
Publication statusPublished - Oct 15 2002

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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