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Pressure-temperature phase diagram for shapes of vesicles: A coarse-grained molecular dynamics study

Appl. Phys. Lett. 95, 143104 (2009); doi:10.1063/1.3245307

Published 6 October 2009

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Ping Liu,1 Ju Li,2 and Yong-Wei Zhang3
1Institute of High Performance Computing, Singapore 117528, Singapore
2Department of Materials Science and Engineering, School of Engineering and Applied Science, University of Pennsylvania, Pennsylvania 19104, USA
3Department of Materials Science and Engineering, National University of Singapore, Singapore 119260, Singapore and Institute of High Performance Computing, Singapore 117528, Singapore
Coarse-grained molecular dynamics simulations are performed to obtain the phase diagram for shapes of a vesicle with a variation in temperature and pressure difference across the membrane. Various interesting vesicle shapes are found, in particular, a series of shape transformations are observed for a vesicle with an initial spherical shape, which changes to a prolate shape, then an oblate shape, and then a stomatocyte shape, with either increasing temperature or decreasing pressure difference across the membrane. ©2009 American Institute of Physics
History: Received 4 June 2009; accepted 18 September 2009; published 6 October 2009
Permalink: http://link.aip.org/link/?APPLAB/95/143104/1
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KEYWORDS and PACS

Keywords
PACS
  • 87.16.dm
    Mechanical properties and rheology of biomembranes, bilayers and vesicles
  • 87.17.Rt
    Cell adhesion and cell mechanics
  • 87.15.ap
    Molecular dynamics simulation in molecular biophysics
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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