Defying gravity with the Brazil nut effect

Physicists from the University of Utrecht and the Faculty of Physics at the University of Warsaw have observed—for the first time experimentally—the Brazil nut effect in a mixture of charged colloidal particles.

Hydrodynamic properties improve Brownian dynamics simulations

Investigators from the Institute of Industrial Science at The University of Tokyo added the influence of hydrodynamics, which includes the flow and compressibility properties of water, to computer simulations of suspended ...

Study sheds new light on materials assembly in confinement

Cramming multiple pairs of shoes into a vacation suitcase, twisting and flipping them into different arrangements to fit every pair needed, is a familiar optimization problem faced by harried travelers. This same problem ...

Predicting the phase stability of soft matter

Soft matter is an important class of materials that typically consists of colloidal particles and/or polymers in a liquid medium. For certain compositions, these types of systems tend to (micro-)phase separate and unmix into ...

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