title: Nonequilibrium patterns and shape fluctuations in reactive membranes.
abstract: 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.
authors.affiliation: Departament de Química-Física, Universitat de Barcelona, Avda. Diagonal 647, 08028 Barcelona, Spain.
authors.forename: Ramon
authors.initials: R
authors.lastname: Reigada
authors.forename: Javier
authors.initials: J
authors.lastname: Buceta
authors.forename: Katja
authors.initials: K
authors.lastname: Lindenberg
mesh_terms: D003198:Computer Simulation; D004548:Elasticity; D008051:Lipid Bilayers / Q000032:analysis / Q000737:chemistry*; D008560:Membrane Fluidity; D008567:Membranes, Artificial; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D013314:Stress, Mechanical; D013500:Surface Tension
chemical_list: D008051:Lipid Bilayers; D008567:Membranes, Artificial