Armik V M Khachatourian and Anders O Wistrom 2002 J. Phys. A: Math. Gen. 35 2159 doi:10.1088/0305-4470/35/9/306
Electrostatic pair-interaction force between semi-permeable membranes
Armik V M Khachatourian and Anders O Wistrom
Show affiliationsMembrane fusion, protein folding and macromolecular assembly are a few of the many processes in which the interaction of near-neutral and semi-permeable fluid surfaces plays an important role. The electrostatic force between membranes is solved from Coulomb's law by first casting the expression for charge by way of the Fredholm integral equation, and then integrating the effect of the charge distribution to obtain the expression for force. The surface charge density is conveniently described by a Langevin type expression which suggests a saturation type behaviour describing a transition from `soft' to `hard' sphere where increasing electrolyte strength and particle size modify the pair-interaction force.
- PACS
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41.20.Cv Electrostatics; Poisson and Laplace equations, boundary-value problems
87.16.D- Membranes, bilayers, and vesicles
87.15.Cc Folding: thermodynamics, statistical mechanics, models, and pathways
- MSC
- Subjects
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Soft matter, liquids and polymers
- Dates
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Issue 9 (8 March 2002)
Received 15 March 2001, in final form 17 October 2001
Published 22 February 2002
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Electrostatic pair-interaction force between semi-permeable membranes
Armik V M Khachatourian and Anders O Wistrom 2002 J. Phys. A: Math. Gen. 35 2159
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