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Issue 20, 2011
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Dynamics of a lipid bilayer induced by electric fields

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Abstract

The dynamics of a lipid bilayer of 1-palmitoyl-2-oleoyl-glycero-3-phospho-ethanolamine, POPE, is investigated under the effect of two electric field intensities. The box of 720 lipids and 13 458 water molecules—plus boundary conditions—undergoes similar re-organizational dynamics in the presence of fields of 0.35 V nm−1 and 0.5 V nm−1. Water fingers form followed by some lipid translocation from one layer to the other. The re-organization kinetics is of the second order and is roughly 5 times faster at the higher field. The translocations may occur also upon field switch off, provided that their duration was sufficiently long. Driving few lipid translocations by a macroscopic tool, such as the electric field, appears possible.

Graphical abstract: Dynamics of a lipid bilayer induced by electric fields

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Publication details

The article was received on 07 Feb 2011, accepted on 11 Mar 2011 and first published on 05 Apr 2011


Article type: Paper
DOI: 10.1039/C1CP20322C
Phys. Chem. Chem. Phys., 2011,13, 9216-9222

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    Dynamics of a lipid bilayer induced by electric fields

    A. Venturini and F. Zerbetto, Phys. Chem. Chem. Phys., 2011, 13, 9216
    DOI: 10.1039/C1CP20322C

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