Electro osmosis at liquid interfaces

Abstract eng:
Electrokinetic (EK) transport couples hydrodynamics and electrostatics at liquid interfaces. In particular, it is possible to generate a flow near a charged interface in a liquid by applying an electric field, due to the drag force exerted on counter ions near the interface, a phenomenon referred to as electro-osmosis (EO). We propose here to use EO in the context of liquid foams, the charges being carried by the surfactants used to stabilize the foam. The main challenge of the project is to achieve a complete understanding of EK transport in a 3D liquid foam. To do so, we used a multiscale approach combining experimental and theoretical (molecular dynamics (MD) simulation) tools. In this article, we present our newest results on this general project.

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