The undulation force; theoretical results versus experimental demonstrations.

Håkan Wennerström; Ulf Olsson

doi:10.1016/j.cis.2014.02.010

The undulation force; theoretical results versus experimental demonstrations.

Håkan Wennerström, Ulf Olsson

Physical Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

In 1978 Wolfgang Helfrich published a paper (Helfrich W. Z Naturforsch 1978; 33a:305) where he introduced the notion of an undulation force between bilayers. This is caused by thermal excitations of the bending modes being restricted by the presence of neighboring layers. Although there is now a consensus on the qualitative picture put forward by Helfrich there is still a debate concerning the quantitative aspects. We discuss in particular the distance dependence of the interaction and also the value of the numerical coefficient of the force law derived by Helfrich.

Original language	English
Pages (from-to)	10-13
Journal	Advances in Colloid and Interface Science
Volume	208
Issue number	Online 19 February 2014
DOIs	https://doi.org/10.1016/j.cis.2014.02.010
Publication status	Published - 2014

Subject classification (UKÄ)

Physical Chemistry

Access to Document

10.1016/j.cis.2014.02.010

Cite this

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title = "The undulation force; theoretical results versus experimental demonstrations.",

abstract = "In 1978 Wolfgang Helfrich published a paper (Helfrich W. Z Naturforsch 1978; 33a:305) where he introduced the notion of an undulation force between bilayers. This is caused by thermal excitations of the bending modes being restricted by the presence of neighboring layers. Although there is now a consensus on the qualitative picture put forward by Helfrich there is still a debate concerning the quantitative aspects. We discuss in particular the distance dependence of the interaction and also the value of the numerical coefficient of the force law derived by Helfrich.",

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