Electrohydrodynamic flow and colloidal patterning near inhomogeneities on electrodes.

  title={Electrohydrodynamic flow and colloidal patterning near inhomogeneities on electrodes.},
  author={William D Ristenpart and Pei-xue Jiang and Marcin Slowik and Christian Punckt and Dudley A. Saville and Ilhan A. Aksay},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={24 21},
Current density inhomogeneities on electrodes (of physical, chemical, or optical origin) induce long-range electrohydrodynamic fluid motion directed toward the regions of higher current density. Here, we analyze the flow and its implications for the orderly arrangement of colloidal particles as effected by this flow on patterned electrodes. A scaling analysis indicates that the flow velocity is proportional to the product of the applied voltage and the difference in current density between… CONTINUE READING
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