Structure and dynamics of biphasic colloidal mixtures

Ali Mohraz, Eric R. Weeks, Jennifer A. Lewis

Research output: Contribution to journalArticle

Abstract

We investigate the structure and dynamics of biphasic colloidal mixtures composed of coexisting attractive and repulsive microspheres by confocal microscopy. Attractive gels formed in the presence of repulsive microspheres are more spatially homogeneous and, on average, are both more locally tenuous and have fewer large voids than their unary counterparts. The repulsive microspheres within these mixtures display heterogeneous dynamics, with some species exhibiting freely diffusive Brownian motion while others are trapped within the gel network during aggregation.

Original languageEnglish (US)
Article number060403
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume77
Issue number6
DOIs
StatePublished - Jun 13 2008

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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