Coiling Instabilities in Multilamellar Tubes

Details Coiling Instabilities in Multilamellar Tubes Coiling Instabilities in Multilamellar Tubes

2002-06-13

arxiv.org/abs/cond-mat/0206246v1

Phys. Rev. E 66, 061501 (2002)

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 2 figures

Scientific paper

10.1103/PhysRevE.66.061501

Myelin figures are densely packed stacks of coaxial cylindrical bilayers that are unstable to the formation of coils or double helices. These myelin figures appear to have no intrinsic chirality. We show that such cylindrical membrane stacks can develop an instability when they acquire a spontaneous curvature or when the equilibrium distance between membranes is decreased. This instability breaks the chiral symmetry of the stack and may result in coiling. A unilamellar cylindrical vesicle, on the other hand, will develop an axisymmetric instability, possibly related to the pearling instability.

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