Nonlinear Dynamics in a Theoretical Model of Excitable Lipid Membrane

Yoshinori Saida, Tetsuya Matsuno, Kiyoshi Toko, Kaoru Yamafuji

Research output: Contribution to journalArticle

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Abstract

A theoretical model is presented for reproducing chaotic behaviors observed experimentally in the DOPH (dioleyl phosphate) membrane system with external periodic stimulation. The model describes the self-sustained oscillation of the membrane potential of the DOPH membrane by taking into account the effect of applied AC electric current. The route to chaos was classified as break-down of quasi-periodicity, although it was unclear experimentally. Effects of the change in the phenomenological parameters in the theoretical model on the attractor were also investigated. It was shown that some dynamic bifurcation properties can change much more sensitively than average quantities as the mean frequency. The change of the attractor was discussed in relation to the interaction of DOPH molecules with taste substances by comparing with experimental results.

Original languageEnglish
Pages (from-to)2934-2941
Number of pages8
Journaljournal of the physical society of japan
Volume62
Issue number8
DOIs
Publication statusPublished - Jan 1 1993

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lipids
phosphates
membranes
taste
stimulation
electric current
chaos
periodic variations
alternating current
breakdown
routes
oscillations
molecules
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Nonlinear Dynamics in a Theoretical Model of Excitable Lipid Membrane. / Saida, Yoshinori; Matsuno, Tetsuya; Toko, Kiyoshi; Yamafuji, Kaoru.

In: journal of the physical society of japan, Vol. 62, No. 8, 01.01.1993, p. 2934-2941.

Research output: Contribution to journalArticle

Saida, Yoshinori ; Matsuno, Tetsuya ; Toko, Kiyoshi ; Yamafuji, Kaoru. / Nonlinear Dynamics in a Theoretical Model of Excitable Lipid Membrane. In: journal of the physical society of japan. 1993 ; Vol. 62, No. 8. pp. 2934-2941.
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