双层
脂质双层力学
脂质双层
材料科学
压力(语言学)
共聚物
化学物理
领域(数学)
应力场
场论(心理学)
溶剂
膜
凝聚态物理
机械
化学工程
脂质双层相行为
热力学
复合材料
物理
化学
聚合物
有机化学
数学
有限元法
纯数学
数学物理
工程类
生物化学
语言学
哲学
作者
Roland R. Netz,M. Schick
出处
期刊:Physical review
日期:1996-04-01
卷期号:53 (4): 3875-3885
被引量:54
标识
DOI:10.1103/physreve.53.3875
摘要
Structure and stability of fluid bilayers under stress are examined by modeling lipid as diblock copolymer and solvent as homopolymer. The model is solved using self-consistent field theory, and equilibrium phases are determined. We find that on increasing the stress applied to the bilayer, one of two scenarios occurs depending upon the architecture of the lipid. Either the bilayer ruptures, or pores form within it and condense into a regular array. In the former case, the fractional increase in area from its unstressed value is found to be approximately 2% at rupture, in satisfactory agreement with experiment. In the latter, the pores appear and disappear reversibly with the stress, in accord with experiment. We find the pores to be slightly hydrophobic. \textcopyright{} 1996 The American Physical Society.
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