The linear-dependence of adhesion strength and adhesion range on temperature in soft membranes
Wei YJ(魏宇杰)1,3; Yang RG(杨荣贵)2; Chang ZH(常正华)1,3
刊名JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
2019-11-01
卷号132页码:12
关键词Soft membrane Adhesion Ripples Thermal undulation Helfrich Hamiltonian
ISSN号0022-5096
DOI10.1016/j.jmps.2019.103697
通讯作者Yang, Ronggui(ronggui@hust.edu.cn) ; Wei, Yujie(yujie_wei@lnm.imech.ac.cn)
英文摘要The adhesion of a soft membrane plays a central role for the functionality of many biological and engineering systems, from cell adhesion to advanced materials. In this work, we demonstrated via a combination of statistical mechanics analysis and molecular dynamics (MD) simulations that the adhesion of a membrane-buffered interface could be significantly modulated due to thermally induced surface corrugations in the membrane. Not expected from classical mechanics theories, the adhesion strength is highly temperature sensitive and reduces linearly with increasing temperature. Through statistical mechanics analysis, the dependence of adhesion on temperature is found to result from thermally induced ripples which facilitate long-range adhesion between the soft membrane like graphene sheets or lipid bilayers with the substrate. The results from MD simulations agree well with the statistical mechanics analysis. Such surprising findings may pave the way to understand temperature-sensitive kinetics in many biological systems where the interaction of cell membranes with extra-cellular environments is pivotal. (C) 2019 Elsevier Ltd. All rights reserved.
分类号一类/力学重要期刊
资助项目National Natural Science Foundation of China[11425211] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020200] ; CAS Center for Excellence in Complex System Mechanics
WOS关键词COARSE-GRAINED MODEL ; LIPID-BILAYERS ; BENDING STIFFNESS ; FLUID MEMBRANES ; FORCE-FIELD ; GRAPHENE ; FLUCTUATIONS ; CRYSTALLINE ; DEFECTS ; MARTINI
WOS研究方向Materials Science ; Mechanics ; Physics
语种英语
WOS记录号WOS:000488423100016
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS Center for Excellence in Complex System Mechanics
其他责任者Yang, Ronggui ; Wei, Yujie
内容类型期刊论文
源URL[http://dspace.imech.ac.cn/handle/311007/80680]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R China;
3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714
Wei YJ,Yang RG,Chang ZH. The linear-dependence of adhesion strength and adhesion range on temperature in soft membranes[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2019,132:12.
APA 魏宇杰,杨荣贵,&常正华.(2019).The linear-dependence of adhesion strength and adhesion range on temperature in soft membranes.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,132,12.
MLA 魏宇杰,et al."The linear-dependence of adhesion strength and adhesion range on temperature in soft membranes".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 132(2019):12.
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