Fluids of clusters in attractive colloids

  • Lu P
  • Conrad J
  • Wyss H
 et al. 
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We show that colloidal particles with attractive interactions induced by a nonadsorbing polymer exhibit a stable phase consisting of a fluid of clusters of particles. This phase persists even in the absence of any long-range repulsion due to charge, contrary to expectations based on simulation and theory. Cluster morphology depends strongly on the range of the interparticle attraction: With a shorter range, clusters are tenuous and branched; with a longer range, they are more compact.

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  • P J Lu

  • J C Conrad

  • H M Wyss

  • A B Schofield

  • D A Weitz

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