Volume 46, Number 3, May I 1999
|Page(s)||407 - 413|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 September 2002|
Attraction between like-charged colloidal particles induced by a surface: A density-functional analysis
Department of Chemistry, University of Cambridge
Lensfield Road, Cambridge CB2 1EW, UK
Accepted: 22 February 1999
We show that the first non-linear correction to the linearised Poisson-Boltzmann (or DLVO) theory of effective pair interactions between charge-stabilised, colloidal particles near a charged wall leads to an attractive component of entropic origin. The position and depth of the potential compare favourably with recent experimental measurements.
PACS: 82.70.Dd – Colloids / 64.10.+h – General theory of equations of state and phase equilibria / 83.20.Di – Microscopic (molecular) theories
© EDP Sciences, 1999
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