Coiling of Cylindrical Membrane Stacks with Anchored Polymers

Details Coiling of Cylindrical Membrane Stacks with Anchored Polymers Coiling of Cylindrical Membrane Stacks with Anchored Polymers

1999-04-23

arxiv.org/abs/cond-mat/9904338v2

Physics

Condensed Matter

Soft Condensed Matter

3 Postscipt figures

Scientific paper

10.1103/PhysRevLett.83.2465

We study experimentally a coiling instability of cylindrical multilamellar stacks of phospholipid membranes, induced by polymers with hydrophobic anchors grafted along their hydrophilic backbone. We interpret our experimental results in terms of a model, in which local membrane curvature and polymer concentration are coupled. The model predicts the occurence of maximally tight coils above a threshold anchor occupancy. Indeed, only maximally tight coils are observed experimentally. Our system is unique in that coils form in the absence of twist.

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