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On-chip high-throughput manipulation of particles in a dielectrophoresis-assisted hydrophoretic focuser

Conference Paper


Abstract

  • A novel concept of dielectrophoresis (DEP)-assisted hydrophoretic focusing of micro-particles is presented in this investigation. The DEP-assisted hydrophoretic micro-channel consists of crescent-shaped grooves and interdigitated electrodes. The crescent-shaped grooves was introduced to generate lateral pressure gradients that induce helical recirculations. A negative DEP force induced by interdigitated electrodes pushes the micro-particles into a higher level in the micro-channel. Particles passing through the microfluidic device are focused onto the sidewalls of the channel. In this device, both numerical and experimental particle trajectories were investigated and the focusing pattern of particles can be tuned by changing the external voltages.

Publication Date

  • 2014

Citation

  • Yan, S., Zhang, J., Li, M., Alici, G., Du, H., Zhu, Y., & Li, W. (2014). On-chip high-throughput manipulation of particles in a dielectrophoresis-assisted hydrophoretic focuser. In 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 (pp. 1752-1754).

Scopus Eid

  • 2-s2.0-84941649188

Web Of Science Accession Number

Start Page

  • 1752

End Page

  • 1754

Abstract

  • A novel concept of dielectrophoresis (DEP)-assisted hydrophoretic focusing of micro-particles is presented in this investigation. The DEP-assisted hydrophoretic micro-channel consists of crescent-shaped grooves and interdigitated electrodes. The crescent-shaped grooves was introduced to generate lateral pressure gradients that induce helical recirculations. A negative DEP force induced by interdigitated electrodes pushes the micro-particles into a higher level in the micro-channel. Particles passing through the microfluidic device are focused onto the sidewalls of the channel. In this device, both numerical and experimental particle trajectories were investigated and the focusing pattern of particles can be tuned by changing the external voltages.

Publication Date

  • 2014

Citation

  • Yan, S., Zhang, J., Li, M., Alici, G., Du, H., Zhu, Y., & Li, W. (2014). On-chip high-throughput manipulation of particles in a dielectrophoresis-assisted hydrophoretic focuser. In 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 (pp. 1752-1754).

Scopus Eid

  • 2-s2.0-84941649188

Web Of Science Accession Number

Start Page

  • 1752

End Page

  • 1754