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Steady-state organization of binary mixtures by active impurities

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The structural reorganization of a phase-separated binary mixture in the presence of an annealed dilution of active impurities is studied by computer-simulation techniques via a simple two-dimensional lattice-gas model. The impurities, each of which has two internal states with different affinity for the two species, become active by an external driving of a transition between the two impurity states, leading to an energy flow from the impurities into the binary mixture. In steady state, the drive is found to break down the phase-separated state and lead to a new finite length scale controlled by the drive. The model can be extended to describe compartmentalization of biomembranes by active membrane-bound proteins.

OriginalsprogEngelsk
TidsskriftPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Vol/bind58
Udgave nummer3
Sider (fra-til)3547-3551
Antal sider5
ISSN1063-651X
DOI
StatusUdgivet - 1 jan. 1998

ID: 236886771