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Front propagation in laser-tweezed lipid bilayer tubules

Published online by Cambridge University Press:  10 February 2011

Peter D. Olmsted  and
Fred C. Mackintosh
Peter D. Olmsted
Affiliation:
Department of Physics, University of Leeds, Leeds, LS2 9JT, United Kingdom
Fred C. Mackintosh
Affiliation:
Department of Physics, University of Michigan, Ann Arbor, MI 18109
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Abstract

We study the mechanism of the ‘pearling’ instability seen recently in experiments on lipid tubules under a local applied laser intensity. We argue that the correct boundary conditions are fixed chemical potentials, or surface tensions Σ, at the laser spot and the reservoir in contact with the tubule. While most qualitative conclusions of previous studies remain the same, the ‘ramped’ control parameter (surface tension) implies several new features. We also explore some consequences of front propagation into a noisy unstable medium.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 463: Symposia EE – Statistical Mechanics in Physics and Biology , 1996 , 173
Copyright
Copyright © Materials Research Society 1997

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References

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