A universal description of non-equilibrium colloid phase separation

A research team simulated phase separation in colloidal suspensions. By treating colloid particles as undeformable highly viscous liquid droplets suspended in a solvent, they predicted the kinetics of colloid demixing -- separation into a particulate phase - with high efficiency. A microscope study of real colloidal suspensions confirmed the accuracy of the model, which crucially included hydrodynamic (solvent-mediated) interactions between particles. This parameter-free model could be applied to other soft matter, biofluids, and colloid material design.

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