Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Effect of Surface Active-Agents and Some Molecules on the Electrical Properties of Lipid Membranes
Masao Hashimoto
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1968 Volume 41 Issue 12 Pages 2823-2828


The electric and mechanical properties of lipid membranes between two electrolyte solutions were observed. The electric resistance was 107–108 Ω·cm2; the capacity, 0.2–1 μF/cm2, and the surface tension, 2.2–4.9 dyn/cm. The electric conductivity increased with an increase in the surface area of the lipid membranes. Furthermore, the electric resistance and the capacity decreased when an ionic surface-active agent was adsorbed to the lipid membranes. The effect may be caused by the structural change of the lipid membranes due to both the electric and the hydro-phobic interactions between the ionic surface-active agent and the lipid membranes.

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