Colloidal Jamming at Interfaces: a Route to Fluid-bicontinuous Gels

Details Colloidal Jamming at Interfaces: a Route to Fluid-bicontinuous Gels Colloidal Jamming at Interfaces: a Route to Fluid-bicontinuous Gels

2005-10-03

arxiv.org/abs/cond-mat/0510040v1

Science, volume 309 pp 2198-2201 (2005)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1126/science.1116589

Colloidal particles or nanoparticles, with equal affinity for two fluids, are known to adsorb irreversibly to the fluid-fluid interface. We present large-scale computer simulations of the demixing of a binary solvent containing such particles. The newly formed interface sequesters the colloidal particles; as the interface coarsens, the particles are forced into close contact by interfacial tension. Coarsening is dramatically curtailed, and the jammed colloidal layer seemingly enters a glassy state, creating a multiply connected, solid-like film in three dimensions. The resulting gel contains percolating domains of both fluids, with possible uses as, for example, a microreaction medium.

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