Electro-osmotic flows

Research

This work addresses the goal of obtaining precise and accurate measurements for developing effective personalized health care. From the biochemical standpoint, the challenge of developing effective tools to provide accurate measurements of wide-ranging mixture chemical properties, spatial scales and concentrations requires a multidisciplinary approach. One area that can make a significant contribution is separation science. Previous separation methods have required long periods of time to resolve complex mixtures and generally require intricate manipulations to develop effective separations. An exciting new element proposed here, is to use a method that is fundamentally a separation science phenomenon used in an array-based format, driven by an electro-osmotic flow. .


Click below to see some animations of electrophoretic transport of a reagent for Re=1

S= 7 numerical

S= 10 numerical

S=7 experiment

S=10 experiment

Separation condition S

Concentration S=7

Contact:

  • Dr. Kang-Ping Chen ASU
  • Dr. J. Rafael Pacheco ASU
  • Dr. Mark Hayes ASU

  • Related publications:

  • Pacheco, J.R., Chen K.P., Hayes, M. A study on the condition for differential electrophoretic transport at a channel entrance, Electrophoresis, 28: (7) pp. 1027-1035, 2007.
  • Chen, K.P., Pacheco, J.R., Hayes, M. A., Staton, S. Insulator-based dielectrophoretic separation of small particles in a sawtooth channel. Electrophoresis , 30: 1441-1448, 2009.

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