Volume 64, Number 6, December 2003
|Page(s)||844 - 850|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 November 2003|
The unbinding transition of mixed fluid membranes
Department of Chemistry, Faculty of Science,
Tokyo Metropolitan University
Tokyo 192-0397, Japan
2 School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University - Ramat Aviv 69978, Tel Aviv, Israel
Accepted: 8 October 2003
A phenomenological model for the unbinding transition of multicomponent fluid membranes is proposed, where the unbinding transition is described using a theory analogous to the Flory-Huggins theory for polymers. The coupling between the lateral phase separation of inclusion molecules and the membrane-substrate potential provides a rich phase behavior. Our model describes the first-order nature of the unbinding transition in multicomponent membranes as was observed in a recent experiment. In particular, we predict different scenarios of phase coexistence between bound and unbound membrane states.
PACS: 87.16.Dg – Membranes, bilayers, and vesicles / 68.05.-n – Liquid-liquid interfaces / 64.60.-i – General studies of phase transitions
© EDP Sciences, 2003
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