Activating membranes

Abstract

We present a general dynamical theory of a membrane coupled to an actin cortex containing polymerizing filaments with active stresses and currents, and demonstrate that active membrane dynamics [Phys. Rev. Lett \textbf{84}, 3494 (2000)] and spontaneous shape oscillations emerge from this description. We also consider membrane instabilities and patterns induced by the presence of filaments with polar orientational correlations in the tangent plane of the membrane. The dynamical features we predict should be seen in a variety of cellular contexts involving the dynamics of the membrane-cytoskeleton composite and cytoskeletal extracts coupled to synthetic vesicles.

References in corpus (4)

• Collective motion of self-propelled particles interacting without cohesion
• Hydrodynamic equations for self-propelled particles: microscopic derivation and stability analysis
• Instabilities and waves in thin films of living fluids
• Instabilities and diffusion in a hydrodynamic model of a fluid membrane coupled to a thin active fluid layer

Cited by in corpus (35)

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• Arbitrary Lagrangian--Eulerian finite element method for lipid membranes
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