Dynamic Theory of Pearling Instability in Cylindrical Vesicles

Details Dynamic Theory of Pearling Instability in Cylindrical Vesicles Dynamic Theory of Pearling Instability in Cylindrical Vesicles

1994-10-27

arxiv.org/abs/cond-mat/9410104v2

Physics

Condensed Matter

10 pages; UPR-662T;[REVISION: postscript file available at ftp://dept.physics.upenn.edu/pub/Nelson/pearls.ps]

Scientific paper

10.1103/PhysRevLett.74.3384

We give a simple theory for recent experiments of Bar-Ziv and Moses% Phys. Rev. Lett. {\bf73} (1994) 1392, in which tubular vesicles are excited using laser tweezers to a ``peristaltic'' state. Considering the hydrodynamics of a bilayer membrane under tension, we reproduce some of the qualitative behavior seen and find a value for the wavelength of the instability in terms of independently measured material parameters, in rough agreement with the experimental values.

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