Budding dynamics of individual domains in multicomponent membranes simulated by N-varied dissipative particle dynamics

Article Abstract:

The budding dynamics of individual domains in flat, multicomponent membranes are studied by using dissipative particle dynamics (DPD) simulations with varied bead number, in which addition and deletion of beads based on their density at the membrane boundary is introduced. The simulations have shown that budding duration is shortened with increasing line tension and has depended on the domain size quadratically, whereas at low line tension, increasing budding modulus has accelerated budding at first.

Lipid membranes, Dynamics of a particle, Particle dynamics, Energy dissipation

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Shape of fluid vesicles anchored by rigid rod

Article Abstract:

A method was developed by combining the self-consistent field theory (SCFT) method for the rigid rod with the Helfrich curvature elasticity theory for the vesicle to study the shape of vesicles anchored by rigid rod. It was found that due to the vesicle's impenetrability for the rod segments and the decrease of the available space for the rod orientational configuration, the anchored rod segment exerts the inhomogeneous entropic pressure on the vesicle, and the shape of vesicle is transformed.

Chemical reactions, Entropy (Physics), Entropy (Thermodynamics)

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