The Effect of the Electric Field on the Shapes of Phospholipid Vesicles

  • B. Žekš
  • S. Svetina
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 66)


The shapes of phospholipid vesicles in an external electric field are evaluated using the bilayer couple model of the phospholipid membrane. Nearly spherical vesicles have for small fields a shape of prolate ellipsoids, which get more elongated with increasing electric field. For larger fields the elongation does not increase simply, but a bulge starts to grow on the equator. The shapes which minimize the membrane bending energy at given membrane area are calculated in dependence of the electric field and the corresponding volumes are determined.


External Electric Field Large Field Small Field Equilibrium Shape Phospholipid Vesicle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    S. Svetina and B. Žekš, Eur. Biophys. J. 17, 101 (1989) and the references therein.CrossRefGoogle Scholar
  2. [2]
    K. Berndl, J. Käs, R. Lipowsky, E. Sackmann, and U. Seifert, Europhys. Lett. 13, 659 (1990).CrossRefGoogle Scholar
  3. [3]
    W. Helfrich, Z. Naturforsch. C 29, 182 (1974).Google Scholar
  4. [4]
    M. Winterhalter and W. Helfrich, J. Colloid Interface Sci. 122, 583 (1988).CrossRefGoogle Scholar
  5. [5]
    M. Kummrow and W. Helfrich, this workshop, to be published.Google Scholar
  6. [6]
    B. Žekš, S. Svetina, and V. Pastushenko, Stud. Biophys. 138, 137 (1990).Google Scholar
  7. [7]
    B. Žekš and S. Svetina, in Biologically Inspired Physics, editor L. Peliti, Plenum, N.Y., 1991.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • B. Žekš
    • 1
    • 2
  • S. Svetina
    • 1
    • 2
  1. 1.Medical FacultyInstitute of BiophysicsLjubljanaSlovenia
  2. 2.J. Stefan InstituteLjubljanaSlovenia

Personalised recommendations