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Issue 32, 2016
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Hydrodynamic coupling of particle inclusions embedded in curved lipid bilayer membranes

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Abstract

We develop theory and computational methods to investigate particle inclusions embedded within curved lipid bilayer membranes. We consider the case of spherical lipid vesicles where inclusion particles are coupled through (i) intramembrane hydrodynamics, (ii) traction stresses with the external and trapped solvent fluid, and (iii) intermonolayer slip between the two leaflets of the bilayer. We investigate relative to flat membranes how the membrane curvature and topology augment hydrodynamic responses. We show how both the translational and rotational mobility of protein inclusions are effected by the membrane curvature, ratio of intramembrane viscosity to solvent viscosity, and intermonolayer slip. For general investigations of many-particle dynamics, we also discuss how our approaches can be used to treat the collective diffusion and hydrodynamic coupling within spherical bilayers.

Graphical abstract: Hydrodynamic coupling of particle inclusions embedded in curved lipid bilayer membranes

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Publication details

The article was received on 25 Jan 2016, accepted on 24 Jun 2016 and first published on 27 Jun 2016


Article type: Paper
DOI: 10.1039/C6SM00194G
Citation: Soft Matter, 2016,12, 6685-6707
  • Open access: Creative Commons BY license
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    Hydrodynamic coupling of particle inclusions embedded in curved lipid bilayer membranes

    J. K. Sigurdsson and P. J. Atzberger, Soft Matter, 2016, 12, 6685
    DOI: 10.1039/C6SM00194G

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