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arXiv · 2103.15184

Determining depletion interactions by contracting forces

Nestor M. de los Santos-Lopez·Gabriel Perez-Angel·Ramon Castaneda-Priego·Jose M. Mendez-Alcaraz
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Abstract

We introduce a general physical formulation that allows one to obtain uniquely the effectiveinteractions by contracting the bare forces, even in highly concentrated systems. We tested it bystudying depletion forces in two-dimensional binary and ternary colloidal mixtures with a totalpacking fraction up to 70%. Our result opens up the possibility of finding an efficient route todetermine effective interactions at finite concentration and even at thermodynamic conditions nearto meta-stable or out of equilibrium states.

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Nestor M. de los Santos-Lopez, Gabriel Perez-Angel, Ramon Castaneda-Priego, Jose M. Mendez-Alcaraz. 2021-03-28. Determining depletion interactions by contracting forces. https://doi.org/10.1063/5.0099919

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