Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 116, Issue 24, Pages 7196-7202Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp302864v
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Funding
- National Natural Science Foundation of China [91027040, 11104192, 10974080, 21106114]
- National Basic Research Program of China [2012CB821500]
- Chinese Ministry of Education [210208]
- Applied Basic Research Program [2010CD091]
- Science Foundation of Department of Education of Yunnan Province of China [2010Z077]
- China Postdoctoral Science Foundation [201104557]
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The deformation behaviors and corresponding curvature changes of bilayer membranes composed of amphiphiles are of biological importance and have potential industrial applications. Here, we study the curvature changes of bilayer membranes under the area-difference and spontaneous curvature effects with dissipative particle dynamics. By varying the relative quantity of the amphiphiles in two monolayers or the head-head interaction between the amphiphiles within each monolayer, rich morphological responses of the membranes are obtained. We find that some important factors such as the ability of amphiphiles to change their configurations in different membrane (crowded or sparse) environments and the coupling between the two monolayers, which are not included in the theoretical models, actually affect the deformation behavior of the membrane. Furthermore, the relationship between membrane deformation and fission (such as the transition from budding to scission of the bilayer) is also discussed, which is helpful in deeply understanding the fission event of the cell membrane.
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