Two-dimensional flow of driven particles: a microfluidic pathway to the non-equilibrium frontier.
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Chemical Society reviews, ISSN: 1460-4744, Vol: 46, Issue: 18, Page: 5620-5646
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We discuss the basic physics of the flow of micron-scale droplets in 2D geometry. Our focus is on the use of droplet ensembles to look into fundamental questions of non-equilibrium systems, such as the emergence of dynamic patterns and irreversibility. We review recent research in these directions, which demonstrate that 2D microfluidics is uniquely set to study complex out-of-equilibrium phenomena thanks to the simplicity of the underlying Stokes flow and the accessibility of lab-on-chip technology.