Double layer interactions between lipid membrane surfaces with dipolar approximation of headgroup structure: Monte Carlo simulations and anisotropic reference HNC theory

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Double layer interactions between lipid membrane surfaces with dipolar approximation of headgroup structure: Monte Carlo simulations and anisotropic reference HNC theory. / Polyakov, Evgenii A.; Volkov, Nikolai A.; Vorontsov-Velyaminov, Pavel N.

2014. Abstract from The 9th Liquid Matter Conference "Liquids 2014", Lisbon, Portugal.

Research output: Contribution to conference › Abstract

BibTeX

@conference{14d59d0aaeb84a7192e118d3293f191c,

title = "Double layer interactions between lipid membrane surfaces with dipolar approximation of headgroup structure: Monte Carlo simulations and anisotropic reference HNC theory",

abstract = "The interaction of two parallel lipid membranes in an electrolyte solution at physiological conditions is considered. Each lipid layer facing the aqueous solution is modeled as a planar surface of dielectric discontinuity at the hydrocarbon/water interface. The headgroup structure of zwitterionic lipids is modeled as a two-dimensional dipolar liquid at this surface. According to recent theoretical studies of membrane structure and macroion adsorption [1, 2, 3], this model succeeds in explaining the major structural and electrostatic properties of membranes. In our work we study the effect of the zwitterionic lipid headgroup structure on the electrical double layer formed upon lipid membranes, the anisotropic correlations between ions and lipids, and interactions. We generalize the anisotropic reference hypernetted chain (ARHNC) theory [4] to the case of inhomogeneous fluids near surface with structured charge: the ARHNC equations are modified to include a two-dimensional liquid layer of linear (dipolar) molec",

author = "Polyakov, {Evgenii A.} and Volkov, {Nikolai A.} and Vorontsov-Velyaminov, {Pavel N.}",

year = "2014",

language = "English",

note = "The 9th Liquid Matter Conference {"}Liquids 2014{"} ; Conference date: 21-07-2014 Through 25-07-2014",

url = "https://ciencias.ulisboa.pt/en/conferencia/liquids-2014",

}

RIS

TY - CONF

T1 - Double layer interactions between lipid membrane surfaces with dipolar approximation of headgroup structure: Monte Carlo simulations and anisotropic reference HNC theory

AU - Polyakov, Evgenii A.

AU - Volkov, Nikolai A.

AU - Vorontsov-Velyaminov, Pavel N.

PY - 2014

Y1 - 2014

N2 - The interaction of two parallel lipid membranes in an electrolyte solution at physiological conditions is considered. Each lipid layer facing the aqueous solution is modeled as a planar surface of dielectric discontinuity at the hydrocarbon/water interface. The headgroup structure of zwitterionic lipids is modeled as a two-dimensional dipolar liquid at this surface. According to recent theoretical studies of membrane structure and macroion adsorption [1, 2, 3], this model succeeds in explaining the major structural and electrostatic properties of membranes. In our work we study the effect of the zwitterionic lipid headgroup structure on the electrical double layer formed upon lipid membranes, the anisotropic correlations between ions and lipids, and interactions. We generalize the anisotropic reference hypernetted chain (ARHNC) theory [4] to the case of inhomogeneous fluids near surface with structured charge: the ARHNC equations are modified to include a two-dimensional liquid layer of linear (dipolar) molec

AB - The interaction of two parallel lipid membranes in an electrolyte solution at physiological conditions is considered. Each lipid layer facing the aqueous solution is modeled as a planar surface of dielectric discontinuity at the hydrocarbon/water interface. The headgroup structure of zwitterionic lipids is modeled as a two-dimensional dipolar liquid at this surface. According to recent theoretical studies of membrane structure and macroion adsorption [1, 2, 3], this model succeeds in explaining the major structural and electrostatic properties of membranes. In our work we study the effect of the zwitterionic lipid headgroup structure on the electrical double layer formed upon lipid membranes, the anisotropic correlations between ions and lipids, and interactions. We generalize the anisotropic reference hypernetted chain (ARHNC) theory [4] to the case of inhomogeneous fluids near surface with structured charge: the ARHNC equations are modified to include a two-dimensional liquid layer of linear (dipolar) molec

M3 - Abstract

T2 - The 9th Liquid Matter Conference "Liquids 2014"

Y2 - 21 July 2014 through 25 July 2014

ER -

ID: 6815855