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相关论文: Growth in systems of vesicles and membranes

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Results for the kinetics of vapor-liquid transitions, following temperature quenches with different densities, are presented from the molecular dynamics simulations of a Lennard-Jones system. For critical density, bicontinuous liquid and…

统计力学 · 物理学 2018-03-09 Sutapa Roy , Subir K. Das

The diffusional growth of wetting droplets on the boundary wall of a semi-infinite system is considered in different regions of a first-order wetting phase diagram. In a quasistationary approximation of the concentration field, a general…

凝聚态物理 · 物理学 2007-05-23 R. Burghaus

The growth, form, and division of prebiotic vesicles, membraneous bags of fluid of varying components and shapes is hypothesized to have served as the substrate for the origin of life. The dynamics of these out-of-equilibrium structures is…

软凝聚态物质 · 物理学 2019-07-24 Teresa Ruiz-Herrero , Thomas G. Fai , L. Mahadevan

A mechanism is proposed for the growth of vesicles dispersed in a liquid solvent and a size distribution function is obtained for the vesicles, both from the first principles calculations. This distribution function is shown to be…

生物物理 · 物理学 2018-12-11 Bijit Singha

We systematize and extend the description of vesicle growth and shape change using linear nonequilibrium thermodynamics. By restricting the study to shape changes from spheres to axisymmetric ellipsoids, we are able to give a consistent…

软凝聚态物质 · 物理学 2015-05-20 Richard G. Morris , Duccio Fanelli , Alan J. McKane

The phase separation mechanism of a binary liquid mixture off-critically quenched in its miscibility gap is nucleation and growth, its homogeneous phase reaching a metastable equilibrium state. The successive stages of growth of the…

统计力学 · 物理学 2009-11-18 Jean Colombani , Jacques Bert

We present a phase field model for vesicle growth or shrinkage induced by an osmotic pressure due to a chemical potential gradient. The model consists of an Allen-Cahn equation describing the evolution of phase field and a Cahn-Hilliard…

数值分析 · 数学 2022-09-29 Xiaoxia Tang , Shuwang Li , John S. Lowengrub , Steven M. Wise

We study a single, motionless three-dimensional droplet growing by adsorption of diffusing monomers on a 2D substrate. The diffusing monomers are adsorbed at the aggregate perimeter of the droplet with different boundary conditions. Models…

统计力学 · 物理学 2009-10-31 Z. Tavassoli , G. J. Rodgers

We investigate the growth kinetics of binary immiscible fluids and emulsions in two dimensions using a hydrodynamic lattice-gas model. We perform off-critical quenches in the binary fluid case and find that the domain size within the…

软凝聚态物质 · 物理学 2009-10-30 Florian W. J. Weig , Peter V. Coveney , Bruce M. Boghosian

We propose a simple, self-consistent kinetic model for the evolution of a mixture of droplets and vapor expanding adiabatically in vacuum after rapid, almost isochoric heating. We study the evolution of the two-phase fluid at intermediate…

流体动力学 · 物理学 2011-06-01 Julien Armijo , John J. Barnard

We describe the growth of vesicles, due to the accretion of lipid molecules to their surface, in terms of linear irreversible thermodynamics. Our treatment differs from those previously put forward by consistently including the energy of…

统计力学 · 物理学 2009-11-13 Duccio Fanelli , Alan J. McKane

Polymer association at liquid-liquid interfaces is a promising way to spontaneously obtain soft self-healing membranes. In the case of reversible bonding between two polymers, the macromolecules are mobile everywhere within the membrane and…

Contents: 1. Introduction 2. Amphiphilic molecules and the phases they form 3. Isolated membranes: the Helfrich hamiltonian 4. Vesicle shapes 5. Shape fluctuations in vesicles 6. Interacting fluid membranes 7. Conclusions A. Differential…

凝聚态物理 · 物理学 2016-08-31 Luca Peliti

Membrane budding has been extensively studied as an equilibrium process attributed to the formation of coexisting domains or changes in the vesicle area to volume ratio (reduced volume). In contrast, non-equilibrium budding remains…

生物物理 · 物理学 2013-03-27 Thomas Franke , Christian T. Leirer , Achim Wixforth , Nily Dan , Matthias F. Schneider

The shape equation and linking conditions for a vesicle with two-phase domains are derived. We refine the conjecture on the general neck condition for the limit shape of a budding vesicle proposed by J\"{u}licher and Lipowsky [Phys. Rev.…

软凝聚态物质 · 物理学 2017-07-27 Pan Yang , Qiang Du , Z. C. Tu

A systematic investigation of the phase separation dynamics in self-assembled multi-component bilayer fluid vesicles and open membranes is presented. We use large-scale dissipative particle dynamics to explicitly account for solvent,…

软凝聚态物质 · 物理学 2015-06-25 Mohamed Laradji , P. B. Sunil Kumar

An analytical theory is developed to describe the dynamics of a closed lipid bilayer membrane (vesicle) freely suspended in a general linear flow. Considering a nearly spherical shape, the solution to the creeping-flow equations is obtained…

生物物理 · 物理学 2009-11-13 Petia M. Vlahovska , Ruben Serral Gracia

Uncovering the rules governing the nonequilibrium dynamics of the membranes that define biological cells is of central importance to understanding the physics of living systems. We theoretically and computationally investigate the behavior…

Using a microfluidic trap, we study the behavior of individual phospholipid vesicles in contact with fatty acids. We show that spontaneous fatty acids insertion inside the bilayer is controlled by the vesicle size, osmotic pressure…

亚细胞过程 · 定量生物学 2016-12-14 Julien Dervaux , Vincent Noireaux , Albert Libchaber

The study of atmospheric ice nuclei is vital for understanding the formation of precipitation and the development of cloud systems as it reveals how these tiny particles grow. A mechanism of such growth when the nuclei are in a mixed…

材料科学 · 物理学 2023-03-10 M. Boström , Y. Li , I. Brevik , C. Persson , S. Carretero-Palacios , O. I. Malyi
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