2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

On the stability length of fluid/liquid interfaces sustained by microfabricated pillars

J. Berthier, Van Man Tran, H. Jeanson and N. Sarrut

interface stability, pillars, concentration

We focus here on the transfer and concentration of macromolecules from a flowing carrier fluid to a storage liquid. These liquids are flowing in parallel channels, separated by interfaces sustained by micro-pillars. The two fluids should not mix. The best efficiency of such devices is obtained for a largest possible interfacial surface. However, it is observed that, for a given geometry of the pillars, there are only a limited number of interfaces that are stable. In this work, we investigate the stability of the interfaces and deduce some recommendations for improving their stability

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