Dielectric effects in the self-assembly of binary colloidal aggregates

Kipton Barros*, Erik Luijten

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Electrostatic interactions play an important role in numerous self-assembly phenomena, including colloidal aggregation. Although colloids typically have a dielectric constant that differs from the surrounding solvent, the effective interactions that arise from inhomogeneous polarization charge distributions are generally neglected in theoretical and computational studies. We introduce an efficient technique to resolve polarization charges in dynamical dielectric geometries, and demonstrate that dielectric effects qualitatively alter the predicted self-assembled structures, with surprising colloidal strings arising from many-body effects.

Original languageEnglish (US)
Article number017801
JournalPhysical review letters
Volume113
Issue number1
DOIs
StatePublished - Jul 1 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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