J. Phys. II France
Volume 4, Numéro 9, September 1994
Page(s) 1541 - 1555
DOI: 10.1051/jp2:1994216
J. Phys. II France 4 (1994) 1541-1555

Undulation-enhanced electrostatic forces in lamellar phases of fluid membranes

Renko de Vries

Faculty of Chemical Engineering, Dept. Polymer Techn., Delft University of Technology, P.O.Box 5045, 2600 GA Delft, The Netherlands

(Received 23 March 1994, received in final form 23 May 1994, accepted 31 May 1994)

A formula for the free energy of a stack of highly charged, semiflexible membranes, previously derived by Odijk (Odijk T. Langmuir, 1992), is shown to be the first order term in a formal expansion of the free energy in terms of powers of the electrostatic potential. The formula describes the transition from a regime where the free energy is dominated by the electrostatic energy to a regime where it is dominated by bending energy and entropy.

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