Curvature Elasticity of the Electric Double Layer
Soft Condensed Matter
2018-08-06 v1
Abstract
Mean-field electrostatics is used to calculate the bending moduli of an electric double layer for fixed surface charge density of a macroion in a symmetric 1:1 electrolyte. The resulting expressions for bending stiffness, Gaussian modulus, and spontaneous curvature refer to a general underlying equation of state of the electrolyte, subject to a local density approximation and the absence of dipole and higher-order fields. We present results for selected applications: the lattice-gas Poisson-Fermi model with and without asymmetric ion sizes, and the Poisson-Carnahan-Starling model.
Keywords
Cite
@article{arxiv.1808.01180,
title = {Curvature Elasticity of the Electric Double Layer},
author = {Guilherme Volpe Bossa and Bjorn K. Berntson and Sylvio May},
journal= {arXiv preprint arXiv:1808.01180},
year = {2018}
}
Comments
5 pages, 4 figures. Published in Physical Review Letters. Copyright 2018 by the American Physical Society