Novel Colloidal Interactions in Anisotropic Fluids

  title={Novel Colloidal Interactions in Anisotropic Fluids},
  author={Philippe Poulin and Holger Stark and T. C. Lubensky and David A. Weitz},
  pages={1770 - 1773}
Small water droplets dispersed in a nematic liquid crystal exhibit a novel class of colloidal interactions, arising from the orientational elastic energy of the anisotropic host fluid. These interactions include a short-range repulsion and a long-range dipolar attraction, and they lead to the formation of anisotropic chainlike structures by the colloidal particles. The repulsive interaction can lead to novel mechanisms for colloid stabilization. 

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