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Nonequilibrium patterns and shape fluctuations in reactive membranes
Reigada Sanz, Ramon; Buceta Fernández, Javier; Lindenberg, Katja
Universitat de Barcelona
A simple kinetic model of a two-component deformable and reactive bilayer is presented. The two differently shaped components are interconverted by a nonequilibrium reaction, and a phenomenological coupling between local composition and curvature is proposed. When the two components are not miscible, linear stability analysis predicts, and numerical simulations show, the formation of stationary nonequilibrium composition/curvature patterns whose typical size is determined by the reactive process. For miscible components, a linearization of the dynamic equations is performed in order to evaluate the correlation function for shape fluctuations from which the behavior of these systems in micropipet aspiration experiments can be predicted.
2011-07-26
Química física
Biofísica
Física mèdica
Aparells i instruments científics
Biophysics
Medical physics
Scientific apparatus and instruments
Physical chemistry
(c) American Physical Society, 2005
Article
The American Physical Society
         

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