Effective interactions between a pair of nanoparticles

2015/03/11 by Malijevský, Alexandr · 1 citation
#Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech)

paper · doi:10.48550/arxiv.1503.03262

Abstract

We investigate the effective interactions between two nanoparticles (or colloids) immersed in a solvent exhibiting two-phase separation. Using a non-local density functional theory, we determine the dependence of the effective potential on the separation of the nanoparticles when the solvent is near bulk two-phase coexistence. If identical nanoparticles preferentially adsorbing phase α are inserted into phase β, thick wetting layers of the preferable phase α develop at their surfaces. At some particular separation h_b of the nanoparticles, the wetting layers connect to form a single bridge, and the induced effective potential becomes strongly attractive for all distances h

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