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J. Fhys. II France 4 (1994) 1333-1362 AuGusT 1994, PAGE 1333 Classification
 

Summary: J. Fhys. II France 4 (1994) 1333-1362 AuGusT 1994, PAGE 1333
Classification
Physics Abstracts
64.60C 82.10 87.20E
Phase transitions and shapes of two component membranes and
vesicles II : weak segregation limit
Takashi Taniguchi (I), Kyozi Kawasaki (I), David Andelman(2, 3) and Toshihiro
Kawakatsu (I)
(I) Department of Physics, Kyushu University 33, Fukuoka 812, Japan
(2) School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences,
Tel-Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
(3) Laboratoire P-S-I-, Section Physique et Chimie, Institut Curie, ii rue P, et M. Curie,
7523] Paris Cedex 05, France
(Received 29 December J993, received in final form 28 April 1994, accepted 4 May J994)
Abstract. We investigate equilibrium Shapes of vesicles composed of a mixture of partially
miscible amphiphiles embedded in two- and three-dimensional Space. The amphiphilic molecules
can diffuse within the membrane and undergo an intramembrane phase separation below a critical
temperature. We assume a simple phenomenological coupling between the local relative
composition of the amphiphiles and the local curvature of the membrane shape. A linear stability
analysis in the vicinity of the critical temperature indicates that a shape instability is induced by the

  

Source: Andelman, David - School of Physics and Astronomy, Tel Aviv University
Ecole Polytechnique, Centre de mathématiques

 

Collections: Materials Science; Mathematics; Physics