How bio-filaments twist membranes

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 case...

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Veröffentlicht in:Soft matter 2016-01, Vol.12 (26), p.5747-5757
Hauptverfasser: Fierling, Julien, Johner, Albert, Kuli, Igor M, Mohrbach, Hervé, Müller, Martin Michael
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Sprache:eng
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Zusammenfassung: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. We study the deformations of a fluid membrane imposed by adhering stiff bio-filaments due to the torques they apply.
ISSN:1744-683X
1744-6848
DOI:10.1039/c6sm00616g