Stochastic Model of Domain Kinetics in Biological Membranes

A stochastic storage model, which is given by the behavior of macroscopic variables, is used to describe the kinetics of raft-like domains in biological membranes. For a simple output model the features of the behavior of the system corresponded to the nonequilibrium noise-induced phase transitions. The following characteristics of the behavior of the statistical system are obtained: an explicit form of the stationary distribution of the number of domains; ratios for the phase transition points; expressions for the first two moments of the random concentration domain, and an expression for the lifetime of the membrane domains in the steady state.