Transient and steady-state deformations of a vesicle with an insulating membrane in response to step-function or alternating electric fields

Hiroyuki Hyuga*, Kazuhiko Kinosita, Nobuyoshi Wakabayashi

*この研究の対応する著者

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Deformation of a vesicle with an insulating membrane under an external electric field is considered. Application of a step-function field, under which the eventual form is prolate, is shown to transiently induce an oblate deformation, provided that the conditions of the surrounding medium are chosen properly. It is further demonstrated that alternating electric fields induce deformation in a frequency-dependent manner; the deformation at low frequencies is always a prolate one, whereas the steady-state deformation at high frequencies is either prolate or oblate depending on the medium conditions. If this frequency dependence is experimentally observable, the capacitance and curvature elastic modulus of the membrane as well as the intravesicular conductance can be estimated directly from the data. The field-induced deformation may serve as a novel experimental method in cell biology.

本文言語English
ページ(範囲)2649-2656
ページ数8
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
30
10
出版ステータスPublished - 1991 10
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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