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How bio-filaments twist membranes

Abstract : We study the deformations of a fluid membrane imposed by adhering stiff bio-filaments due to the torques they apply. In the limit of small deformations, we derive a general expression for the energy and the deformation field of the membrane. This expression is specialised to different important cases including closed and helical bio-filaments. In particular, we analyse interface-mediated interactions and membrane wrapping when the filaments apply a local torque distribution on a tubular membrane.
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Julien Fierling, Albert Johner, Igor M. Kulic, Hervé Mohrbach, Martin Michael Mueller. How bio-filaments twist membranes. Soft Matter, Royal Society of Chemistry, 2016, 12 (26), pp.5747-5757. ⟨10.1039/c6sm00616g⟩. ⟨hal-01513173⟩



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