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Article Dans Une Revue Physical Review Letters Année : 2001

Buckling of Actin-Coated Membranes under Application of a Local Force

Résumé

The mechanical properties of composite membranes obtained by self-assembly of actin filaments with giant fluid vesicles are studied by micromanipulation with optical tweezers. These complexes exhibit typical mechanical features of a solid shell, including a finite in-plane shear elastic modulus ( approximately 10(-6) N/m). A buckling instability is observed when a localized force of the order of 0.5 pN is applied perpendicular to the membrane plane. Although predicted for polymerized vesicles, this is the first evidence of such an instability.
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Dates et versions

hal-01960774 , version 1 (19-12-2018)

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  • HAL Id : hal-01960774 , version 1

Citer

E. Helfer, S. Harlepp, Laurent Bourdieu, J. Robert, F. Mackintosh, et al.. Buckling of Actin-Coated Membranes under Application of a Local Force. Physical Review Letters, 2001, 87 (8), pp.088103. ⟨hal-01960774⟩

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