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Steering Patchy Particles Using Multivalent Electrolytes

Abstract

Proteins and many recently designed colloids can be regarded aspatchy particleswhere directional interactions strongly influence and govern assembly behavior. Us-ing explicit ion, implicit solvent Metropolis Monte Carlo simulations, we investigatespherical model particles, carrying both charge and electric patches, in dilute aque-ous 1:1, 1:3, and 3:1 electrolyte solutions. Striking differences in pair interactionfree energies and orientational correlations are induced by the three different saltswhich are discussed and rationalized in terms of ion-binding to surface groups, ion-ioncorrelations, and double layer forces. The findings suggest a general strategy wheredirectional, intermolecular interactions can be invoked and tuned via small amountsof a carefully chosen electrolyte.

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Publication details

The article was received on 07 Mar 2017, accepted on 09 May 2017 and first published on 10 May 2017


Article type: Paper
DOI: 10.1039/C7SM00470B
Citation: Soft Matter, 2017, Accepted Manuscript
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    Steering Patchy Particles Using Multivalent Electrolytes

    A. I. Abrikosov and M. Lund, Soft Matter, 2017, Accepted Manuscript , DOI: 10.1039/C7SM00470B

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