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Updated: Jul 20, 2026

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
Published on: August 4, 2023
Electrostatic surface interactions in mixtures of symmetric and asymmetric electrolytes: a Monte Carlo study
Patricia Taboada-Serrano1, Sotira Yiacoumi, Costas Tsouris
1School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0373, USA.
Abstract:
Canonical Monte Carlo simulations of the interaction between a uniformly charged spherical particle and a discretely charged planar surface in solutions of symmetric and asymmetric electrolytes were performed. To assess the nature of the interactions, the force exerted on the colloidal particle perpendicular to the planar surface was calculated. Attractive minima in the interaction force between the similarly charged surfaces reveal the occurrence of two phenomena: long-range attraction of electrostatic origin and short-range attraction due to depletion effects. The degree of electrostatic coupling determines the magnitude and range of like-charge attraction between the two surfaces.
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