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Originally published as Biophys J. BioFAST on May 16, 2008.
doi:10.1529/biophysj.108.132548
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Biophysical Journal 95:L19-L21 (2008)
© 2008 The Biophysical Society

This is an Open Access article distributed under the terms of the Creative Commons-Attribution Noncommercial License (http://www.creaticecommons.org/licensees/by-nc/2.0/), which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Morphological Transitions of Vesicles Induced by Alternating Electric Fields

Said Aranda, Karin A. Riske, Reinhard Lipowsky and Rumiana Dimova

Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany

Correspondence: Address reprint requests and inquiries to Rumiana Dimova, Tel.: 49-331-567-9615; Fax: 49-331-567-9612; E-mail: dimova{at}mpikg.mpg.de.

When subjected to alternating electric fields in the frequency range 102–108 Hz, giant lipid vesicles attain oblate, prolate, and spherical shapes and undergo morphological transitions between these shapes as one varies the field frequency and/or the conductivities {lambda}in and {lambda}ex of the aqueous solution inside and outside the vesicles. Four different transitions are observed with characteristic frequencies that depend primarily on the conductivity ratio {lambda}in/{lambda}ex. The theoretical models that have been described in the literature are not able to describe all of these morphological transitions.






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Copyright © 2008 by the Biophysical Society.