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Steric Interaction of Fluid Membranes in Multilayer Systems

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Helfrich, W.·1978·Zeitschrift für Naturforschung A

Abstract

The out-of-plane fluctuations of fluid membranes are sterically hindered in multilayer systems. The repulsive interaction associated with the steric or excluded-volume effect is studied theoretically by two methods. The interaction energy per unit area of membrane is derived as a function of temperature, membrane curvature elasticity and mean membrane spacing; it is inversely proportional to the square of the latter. Steric repulsion is estimated for lecithin bilayers in water. There and in other cases, it may compete with van der Waals attraction.

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Metadata

Authors
Helfrich, W.
Venue
Zeitschrift für Naturforschung A
Published
1978-03-01
Volume
33
Issue
3
Pages
305-315
ISSN
  • 0340-4811 (ISSN-L)
  • 1865-7109
  • 0932-0784
OpenAlex
W2023534523
Cited by
1,058
References
0
FWCI
0.36
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Steric Interaction of Fluid Membranes in Multilayer Systems. https://app.cochat.ai/papers/10.1515/zna-1978-0308
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Helfrich, W. (1978). Steric Interaction of Fluid Membranes in Multilayer Systems. Zeitschrift für Naturforschung A. https://doi.org/10.1515/zna-1978-0308

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