Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study

We investigate the phase behavior of the asymmetric lipid membranes under shear flows, using the dissipative particle dynamics simulation. Two cases, the weak and strong shear flows, are considered for the asymmetric lipid microstructures. Three typical asymmetric structures, the membranes, tubes, a...

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Main Authors: Yanying Chen, Zhenguo Wang, Yongyun Ji, Linli He, Xianghong Wang, Shiben Li
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Membranes
Subjects:
Online Access:https://www.mdpi.com/2077-0375/11/9/655
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author Yanying Chen
Zhenguo Wang
Yongyun Ji
Linli He
Xianghong Wang
Shiben Li
author_facet Yanying Chen
Zhenguo Wang
Yongyun Ji
Linli He
Xianghong Wang
Shiben Li
author_sort Yanying Chen
collection DOAJ
description We investigate the phase behavior of the asymmetric lipid membranes under shear flows, using the dissipative particle dynamics simulation. Two cases, the weak and strong shear flows, are considered for the asymmetric lipid microstructures. Three typical asymmetric structures, the membranes, tubes, and vesicle, are included in the phase diagrams, where the effect of two different types of lipid chain length on the formation of asymmetric membranes is evaluated. The dynamic processes are demonstrated for the asymmetric membranes by calculating the average radius of gyration and shape factor. The result indicates that different shear flows will affect the shape of the second type of lipid molecules; the shape of the first type of lipid molecules is more stable than that of the second type of lipid molecules. The mechanical properties are investigated for the asymmetric membranes by analyzing the interface tension. The results reveal an absolute pressure at the junctions of different types of particles under the weak shear flow; the other positions are almost in a state of no pressure; there is almost no pressure inside the asymmetric lipid membrane structure under the strong shear flow. The findings will help us to understand the potential applications of asymmetric lipid microstructures in the biological and medical fields.
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spelling doaj.art-cf30bbf4dd8d48a399d3d00dbac44b412023-11-22T14:09:56ZengMDPI AGMembranes2077-03752021-08-0111965510.3390/membranes11090655Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics StudyYanying Chen0Zhenguo Wang1Yongyun Ji2Linli He3Xianghong Wang4Shiben Li5Department of Physics, Wenzhou University, Wenzhou 325035, ChinaDepartment of Physics, Wenzhou University, Wenzhou 325035, ChinaDepartment of Physics, Wenzhou University, Wenzhou 325035, ChinaDepartment of Physics, Wenzhou University, Wenzhou 325035, ChinaDepartment of Physics, Wenzhou University, Wenzhou 325035, ChinaDepartment of Physics, Wenzhou University, Wenzhou 325035, ChinaWe investigate the phase behavior of the asymmetric lipid membranes under shear flows, using the dissipative particle dynamics simulation. Two cases, the weak and strong shear flows, are considered for the asymmetric lipid microstructures. Three typical asymmetric structures, the membranes, tubes, and vesicle, are included in the phase diagrams, where the effect of two different types of lipid chain length on the formation of asymmetric membranes is evaluated. The dynamic processes are demonstrated for the asymmetric membranes by calculating the average radius of gyration and shape factor. The result indicates that different shear flows will affect the shape of the second type of lipid molecules; the shape of the first type of lipid molecules is more stable than that of the second type of lipid molecules. The mechanical properties are investigated for the asymmetric membranes by analyzing the interface tension. The results reveal an absolute pressure at the junctions of different types of particles under the weak shear flow; the other positions are almost in a state of no pressure; there is almost no pressure inside the asymmetric lipid membrane structure under the strong shear flow. The findings will help us to understand the potential applications of asymmetric lipid microstructures in the biological and medical fields.https://www.mdpi.com/2077-0375/11/9/655asymmetricmembraneshear flowdissipative particle dynamics
spellingShingle Yanying Chen
Zhenguo Wang
Yongyun Ji
Linli He
Xianghong Wang
Shiben Li
Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
Membranes
asymmetric
membrane
shear flow
dissipative particle dynamics
title Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
title_full Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
title_fullStr Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
title_full_unstemmed Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
title_short Asymmetric Lipid Membranes under Shear Flows: A Dissipative Particle Dynamics Study
title_sort asymmetric lipid membranes under shear flows a dissipative particle dynamics study
topic asymmetric
membrane
shear flow
dissipative particle dynamics
url https://www.mdpi.com/2077-0375/11/9/655
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AT zhenguowang asymmetriclipidmembranesundershearflowsadissipativeparticledynamicsstudy
AT yongyunji asymmetriclipidmembranesundershearflowsadissipativeparticledynamicsstudy
AT linlihe asymmetriclipidmembranesundershearflowsadissipativeparticledynamicsstudy
AT xianghongwang asymmetriclipidmembranesundershearflowsadissipativeparticledynamicsstudy
AT shibenli asymmetriclipidmembranesundershearflowsadissipativeparticledynamicsstudy