Publication Date:
1991-11-29
Description:
Molecular dynamics simulations in three dimensions of particles that self-assemble to form two-dimensional, membrane-like objects are presented. Anisotropic, multibody forces, chosen so as to mimic real interactions between amphiphilic molecules, generate a finite rigidity and compressibility of the assembled membranes, as well as a finite line tension at their free edges. This model and its generalizations can be used to study a large class of phenomena taking place in fluctuating membranes. For instance, both fluid and solid-like phases, separated by a phase transition, are obtained and some of the large-scale properties of these membranes studied. In particular, thermal undulations of quasi-spherical fluid vesicles are analyzed, in a manner similar to recent experiments in lipid systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drouffe, J M -- Maggs, A C -- Leibler, S -- New York, N.Y. -- Science. 1991 Nov 29;254(5036):1353-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Service de Physique Theorique de Saclay, Gif-sur-Yvette, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1962193" target="_blank"〉PubMed〈/a〉
Keywords:
*Computer Simulation
;
Mathematics
;
Membranes/*ultrastructure
;
*Models, Structural
;
Thermodynamics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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