Theory of electric characteristics of the lipid/PVC/DOPP membrane and PVC/DOPP membrane in response to taste stimuli

Koji Oohira, Kiyoshi Toko

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Electric characteristics of two kinds of membranes in response to NaCl and quinine were theoretically studied; one membrane composed of polyvinyl chloride (PVC) and dioctylphenylphosphonate (DOPP), and the other a lipid/PVC/DOPP membrane containing PVC, DOPP and a negatively charged lipid. We develop a theory by taking into account both the surface electric potential and the diffusion potential within the membrane and succeed in interpreting the observed data. On increasing the NaCl concentration, the lipid/PVC/DOPP membrane changes from weakly charged state to fully charged state by dissociation of H+ from the lipids. The hydrophobic interaction between quinine and the PVC/DOPP membrane was strong enough to overcome the electric repulsion.

Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalBiophysical Chemistry
Volume61
Issue number1
DOIs
Publication statusPublished - Aug 30 1996

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Organic Chemistry

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