Oscillation of membrane potential in ion-complex membranes of DNA and hexamethylenediamine

Akon Higuchi, Takahiro Ichi, Tsutomu Ebana, Mariko Hara

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Ion-complex membranes of DNA and hexamethylenediamine generated oscillations in the membrane potential under a concentration gradient of several salts at frequencies between 0 and 5 Hz at pH 7.0. These rhythmic and synchronized oscillations can be regarded as a simple model of non-linear phenomena observed in organs and cells. The amplitude of the oscillation was influenced by the salts used, and a high amplitude of the oscillation was observed when KCl or salts containing a divalent cation were used. Analysis by fast Fourier transformation revealed that the oscillation of the membrane potential has specific frequencies. It was possible that a particular salt present in the solution can be identified from the amplitude and/or the power spectra of the fast Fourier transform during the oscillation of the membrane potential.

Original languageEnglish
Pages (from-to)1979-1982
Number of pages4
JournalJournal of the Chemical Society - Faraday Transactions
Volume94
Issue number14
DOIs
StatePublished - 21 Jul 1998

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