Juggling with bubbles in cylindrical ferrofluid foams |
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| Authors: | Stefan Hutzler Denis Weaire Florence Elias Eric Janiaud |
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| Institution: | 1. Department of Physics , University of Bristol , Bristol , BS8 1TL , UK;2. Naval Research Laboratory , Washington DC , 20375 , USA |
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| Abstract: | Monodisperse foams in long cylinders exhibit ordered spiral structures. We have made ferrofluid foams of this kind and find that they can be manipulated in a variety of ways by an external magnetic field. Effects include morphological changes, twisting of structures and size control in the bubble formation process. This offers a promising technique for the efficient transport, switching and combining of samples in fluidic networks, possibly on the microfluidic scale. |
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