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Issue 25, 2015
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Bending elasticity of vesicle membranes studied by Monte Carlo simulations of vesicle thermal shape fluctuations

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Abstract

The membrane bending stiffness of nearly spherical lipid vesicles can be deduced from the analysis of their thermal shape fluctuations. The theoretical basis of this analysis [Milner and Safran, Phys. Rev. A: At., Mol., Opt. Phys., 1987, 36, 4371–4379] uses the mean field approximation. In this work we apply Monte Carlo simulations and estimate the error in the determination of the bending stiffness due to the approximations applied in the theory. It is less than 10%. The method presented in this work can also be used to determine the changes of the bending stiffness of biological membranes due to their chemical and/or structural modifications.

Graphical abstract: Bending elasticity of vesicle membranes studied by Monte Carlo simulations of vesicle thermal shape fluctuations

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Publication details

The article was received on 20 Feb 2015, accepted on 16 Apr 2015 and first published on 20 Apr 2015


Article type: Paper
DOI: 10.1039/C5SM00431D
Citation: Soft Matter, 2015,11, 5004-5009
  • Open access: Creative Commons BY license
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    Bending elasticity of vesicle membranes studied by Monte Carlo simulations of vesicle thermal shape fluctuations

    S. Penič, A. Iglič, I. Bivas and M. Fošnarič, Soft Matter, 2015, 11, 5004
    DOI: 10.1039/C5SM00431D

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