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Entropic pressure between fluctuating membranes in multilayer systems
Li L(李龙); Wang XH(王小环); Shao YF(邵颖峰); Li W(李伟); Song F(宋凡)
2018-12-01
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
卷号61期号:12页码:128711
ISSN1674-7348
摘要Gaining insights into the fluctuation-induced entropic pressure between membranes that mediates cell adhesion and signal transduction is of great significance for understanding numerous physiological processes driven by intercellular communication. Although much effort has been directed toward investigating this entropic pressure, there still exists tremendous controversy regarding its quantitative nature, which is of primary interest in biophysics, since Freund challenged the Helfrich's well-accepted results on the distance dependence. In this paper, we have investigated the entropic pressure between fluctuating membranes in multilayer systems under pressure and tension through theoretical analysis and Monte Carlo simulations. We find that the scaling relations associated with entropic pressure depend strongly on the magnitude of the external pressures in both bending rigidityand surface tension-dominated regimes. In particular, both theoretical and computational results consistently demonstrate that, in agreement with Helfrich, the entropic pressure p decays with inter-membrane separations c as p similar to c (-3) for the tensionless multilayer systems confined by small external pressures. However, our results suggest that the entropic pressure law follows to be p similar to c (-1) and p similar to c (-3), respectively, in the limit of large and small thermal wavelengths for bending fluctuations of the membranes in a tension-independent manner for the case of large external pressures.
关键词entropic pressure fluctuating membranes statistical mechanics theory Monte Carlo simulation cell adhesion
DOI10.1007/s11433-018-9264-x
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000441828400001
关键词[WOS]FLUID MEMBRANES ; ANCHORED RECEPTORS ; STERIC INTERACTION ; FORCES ; BINDING ; ADHESION ; LIGANDS
WOS研究方向Physics, Multidisciplinary
WOS类目Physics
项目资助者National Natural Science Foundation of China [11472285, 11572326] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040102] ; National Key Research and Development Program of China [2016YFA0501601]
论文分区二类/Q1
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77867
专题非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Mech, Beijing Key Lab Engn Construct & Mechanobiol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
4.North China Inst Aerosp Engn, Sch Mech & Elect Engn, Langfang 065000, Peoples R China
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GB/T 7714
Li L,Wang XH,Shao YF,et al. Entropic pressure between fluctuating membranes in multilayer systems[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2018,61(12):128711.
APA 李龙,王小环,邵颖峰,李伟,&宋凡.(2018).Entropic pressure between fluctuating membranes in multilayer systems.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,61(12),128711.
MLA 李龙,et al."Entropic pressure between fluctuating membranes in multilayer systems".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 61.12(2018):128711.
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