Abstract
Critical lateral pressure for a pore formation and phase diagram of porous membrane are derived analytically as functions of the microscopic parameters of the lipid chains. The derivation exploits path-integral calculation of the free energy of the ensembles of semi-flexible strings and rigid rods that mimic the hydrophobic tails of lipids in the lipid bilayers and bolalipid membranes respectively. Analytical expressions for the area stretch/compressibility moduli of the membranes are derived in both models.
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Mukhin, S.I., Kheyfets, B.B. Pore formation phase diagrams for lipid membranes. Jetp Lett. 99, 358–362 (2014). https://doi.org/10.1134/S0021364014060095
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DOI: https://doi.org/10.1134/S0021364014060095