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Brownian motion in depletion-force networks is studied with video microscopy in confined nearly hard-sphere mixtures. The particle trajectories show anomalous diffusion, while the self part of the van Hove correlation function exhibits a novel scaling in terms of its first moment. A simple model is used to extract the weak elastic modulus of the gel.
Citation
Physical Review Letters
Pub Type
Journals
Keywords
brownian motion, colloidal gel, depletion
Citation
Hobbie, E.
and Stewart, A.
(2008),
Anomalous Relaxation in Entropic Colloidal Gels, Physical Review Letters
(Accessed December 6, 2023)