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相关论文: Main phase transition in lipid bilayers: phase coe…

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A mesoscopic coarse-grain model for computationally-efficient simulations of biomembranes is presented. It combines molecular dynamics simulations for the lipids, modeled as elastic chains of beads, with multiparticle collision dynamics for…

软凝聚态物质 · 物理学 2015-06-04 Mu-Jie Huang , Raymond Kapral , Alexander S. Mikhailov , Hsuan-Yi Chen

A coarse-grained molecular model, which consists of a spherical particle and an orientation vector, is proposed to simulate lipid membrane on a large length scale. The solvent is implicitly represented by an effective attractive interaction…

软凝聚态物质 · 物理学 2015-05-20 Hiroshi Noguchi

We present a simple coarse-grained bead-and-spring model for lipid bilayers. The system has been developed to reproduce the main (gel-liquid) transition of biological membranes on intermediate length scales of a couple of nanometres and is…

软凝聚态物质 · 物理学 2007-05-23 Olaf Lenz , Friederike Schmid

We describe a simple coarse-grained model which is suited to study lipid layers and their phase transitions. Lipids are modeled by short semiflexible chains of beads with a solvophilic head and a solvophobic tail component. They are forced…

生物物理 · 物理学 2007-08-06 F. Schmid , D. Duchs , O. Lenz , B. West

We investigate the properties of membranes under tension by Monte-Carlo simulations of a generic coarse-grained model for lipid bilayers. We give a comprising overview of the behavior of several membrane characteristics, such as the area…

生物物理 · 物理学 2010-03-17 Jörg Neder , Beate West , Peter Nielaba , Friederike Schmid

We present a simple and highly adaptable method for simulating coarse-grained lipid membranes without explicit solvent. Lipids are represented by one head-bead and two tail-beads, with the interaction between tails being of key importance…

软凝聚态物质 · 物理学 2009-11-11 I. R. Cooke , M. Deserno

In this study, we present a comprehensive exploration of formation of different phases in lipid molecules using a coarse-grained implicit solvent model, where each lipid molecule is represented as a rigid, three-bead rod-like structure. Our…

软凝聚态物质 · 物理学 2023-12-13 Biplab Bawali , Alokmay Datta , Jayashree Saha

We present a minimal model for simulating dynamics of assorted lipid assemblies in a computationally efficient manner. Our model is particle-based and consists of coarse-grained beads put together on a modular platform to give generic…

化学物理 · 物理学 2019-10-15 John M. A. Grime , Jesper J. Madsen

We present a model for the efficient simulation of generic bilayer membranes. Individual lipids are represented by one head- and two tail-beads. By means of simple pair potentials these robustly self-assemble to a fluid bilayer state over a…

软凝聚态物质 · 物理学 2009-11-11 Ira R. Cooke , Kurt Kremer , Markus Deserno

In this paper we present the results of a large-scale numerical investigation of structural properties of a model of cell membrane, simulated as a bilayer of flexible molecules in vacuum. The study was performed by carrying out extensive…

生物物理 · 物理学 2009-11-07 G. La Penna , S. Letardi , V. Minicozzi , S. Morante , G. C. Rossi , G. Salina

Many coarse-grained models have been developed for equilibrium studies of lipid bilayer membranes. To achieve in simulations access to length-scales and time-scales difficult to attain in fully atomistic molecular dynamics, these…

软凝聚态物质 · 物理学 2023-02-28 Yaohong Wang , Jon Karl Sigurdsson , Paul J. Atzberger

Understanding the (de)mixing behavior of multicomponent lipid bilayers is an important step towards unraveling the nature of spatial composition heterogeneities in cellular membranes and their role in biological function. We use…

软凝聚态物质 · 物理学 2018-05-17 Shushan He , Lutz Maibaum

We present a stochastic phase-field model for multicomponent lipid bilayers that explicitly accounts for the quasi-two-dimensional hydrodynamic environment unique to a thin fluid membrane immersed in aqueous solution. Dynamics over a wide…

软凝聚态物质 · 物理学 2011-05-26 Brian A. Camley , Frank L. H. Brown

A molecular model is proposed of a bilayer consisting of fully saturated DPPC and mono unsaturated DOPC. The model not only encompasses the constant density within the hydrophobic core of the bilayer, but also the tendency of chain segments…

生物物理 · 物理学 2009-11-10 R. Elliott , K. Katsov , M. Schick , I. Szleifer

We use a coarse grained molecular model of supported lipid bilayers to study the formation of adhesion domains. We find that this process is a first order phase transition, triggered by a combination of pairwise short range attractive…

软凝聚态物质 · 物理学 2015-06-22 Nadiv Dharan , Oded Farago

We present a simple and computationally efficient coarse-grained and solvent-free model for simulating lipid bilayer membranes. In order to be used in concert with particle-based reaction-diffusion simulations, the model is purely based on…

生物物理 · 物理学 2018-01-31 Mohsen Sadeghi , Thomas R. Weikl , Frank Noé

We consider the phase separation in an asymmetrically charged lipid bilayer membrane consisting of neutral and negatively charged lipids that are in contact with in/out ionic solutions having different ionic strengths. The two asymmetric…

软凝聚态物质 · 物理学 2012-01-31 N. Shimokawa , S. Komura , D. Andelman

We discuss the role coarse-grained models play in the investigation of the structure and thermodynamics of bilayer membranes, and we place them in the context of alternative approaches. Because they reduce the degrees of freedom and employ…

软凝聚态物质 · 物理学 2009-11-11 Marcus Mueller , Kirill Katsov , Michael Schick

The behavior of lipid bilayer is important to understand the functionality of cells like the trafficking of ions between cells. Standard procedures to explore the properties of lipid bilayer and hemifused states typically use either…

软凝聚态物质 · 物理学 2014-10-14 Jose Nabor Vargas , Ralf Seemann , Jean-Baptiste Fleury

We consider a model of bilayer lipid membrane with bola-lipids. The bola-lipid is modeled by linking tails of the hydrophobic chains in the opposite monolayers within bilayer as a first approximation. A number of thermodynamical…

生物大分子 · 定量生物学 2016-02-26 Sergei I. Mukhin , Boris B. Kheyfets
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