Fluids of clusters in attractive colloids

P J  Lu; J C  Conrad; H M  Wyss; Andrew B Schofield; D A  Weitz

doi:10.1103/PhysRevLett.96.028306

Fluids of clusters in attractive colloids

P J Lu, J C Conrad, H M Wyss, Andrew B Schofield, D A Weitz

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	028306
Pages (from-to)	-
Number of pages	4
Journal	Physical Review Letters
Volume	96
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.96.028306
Publication status	Published - 20 Jan 2006

Keywords / Materials (for Non-textual outputs)

PHASE-BEHAVIOR
AGGREGATION
DIFFUSION
GELATION
ARREST

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10.1103/PhysRevLett.96.028306

Edinburgh Soft Matter and Statistical Physics Group: Programme Grant
Cates, M. (Principal Investigator), Ackland, G. (Co-investigator), Egelhaaf, S. (Co-investigator), Evans, M. (Co-investigator), Poon, W. (Co-investigator) & Pusey, P. (Co-investigator)
EPSRC
1/10/03 → 31/03/08
Project: Research

Cite this

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abstract = "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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AU - Conrad, J C

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AU - Schofield, Andrew B

AU - Weitz, D A

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N2 - 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.

AB - 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.

KW - PHASE-BEHAVIOR

KW - AGGREGATION

KW - DIFFUSION

KW - GELATION

KW - ARREST

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Fluids of clusters in attractive colloids

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Edinburgh Soft Matter and Statistical Physics Group: Programme Grant

Cite this