Self-sustained oscillations of electric potential in a model membrane

Kiyoshi Toko, Masaru Tsukiji, Satoru Iiyama, Kaoru Yamafuji

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

A model membrane constructed from a Millipore filter, whose pores are filled with dioleyl phosphate molecules, exhibits a self-oscillation of the electric potential with a period of about a few seconds in the presence of a salt-concentration difference, pressure difference and/or electric current across the filter. In this paper, the effects of chemicals such as KCl, CaCl2, pH and sucrose on the self-oscillation are investigated experimentally. These chemical substances are shown to alter the characteristic properties as the frequency of oscillation. Theoretical consideration of electrochemical interaction between these substances and DOPH molecules gives a fairly good explanation of the observed results.

Original languageEnglish
Pages (from-to)201-210
Number of pages10
JournalBiophysical Chemistry
Volume23
Issue number3-4
DOIs
Publication statusPublished - Mar 1986

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Micropore Filters
Sucrose
Salts
Membranes
Pressure
Molecules
Electric potential
Electric currents
dioleoyl phosphate

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Organic Chemistry

Cite this

Self-sustained oscillations of electric potential in a model membrane. / Toko, Kiyoshi; Tsukiji, Masaru; Iiyama, Satoru; Yamafuji, Kaoru.

In: Biophysical Chemistry, Vol. 23, No. 3-4, 03.1986, p. 201-210.

Research output: Contribution to journalArticle

Toko, Kiyoshi ; Tsukiji, Masaru ; Iiyama, Satoru ; Yamafuji, Kaoru. / Self-sustained oscillations of electric potential in a model membrane. In: Biophysical Chemistry. 1986 ; Vol. 23, No. 3-4. pp. 201-210.
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