Vesicle dynamics in uniform electric fields: squaring and breathing

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23 Scopus citations

Abstract

We computationally investigate the dynamics of a vesicle exposed to uniform DC or AC electric fields. We employ the two-dimensional boundary integral method in order to simulate vesicle deformation under experimental conditions where peculiar drum-like ("squared") shapes have been observed. The vesicle membrane is modeled as an infinitely thin, capacitive, area-incompressible interface, with the surrounding fluids acting as leaky dielectrics. Our simulations capture the "squaring" phenomenon, in which vesicles deform into rectangular profiles with corner-like regions of high curvature, as vesicles undergo dynamic transitions between oblate and prolate ellipsoidal shapes.

Original languageEnglish (US)
Pages (from-to)4840-4846
Number of pages7
JournalSoft Matter
Volume11
Issue number24
DOIs
StatePublished - Jun 28 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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