Budding Dynamics of Multicomponent Membranes

摘要: The budding of multicomponent membranes is studied by computer simulations and scaling arguments. simulation algorithm combines dynamic triangulation with Kawasaki exchange dynamics. process exhibits three distinct time regimes: (i) formation growth intramembrane domains; (ii) many buds; (iii) coalescence small buds into larger ones. regime characterized laws which describe the long-time behavior. Thus, number buds, ${N}_{\mathrm{bud}}$, decays as ${N}_{\mathrm{bud}}\ensuremath{\sim}{1/t}^{\ensuremath{\theta}}$ for large $t$ $\ensuremath{\theta}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1/2$ $\ensuremath{\theta}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2/3$ in absence presence hydrodynamic interactions, respectively.