Dielectrophoretic focusing of particles in a microchannel constriction using DC-biased AC flectric fields.

@article{Zhu2009DielectrophoreticFO,
  title={Dielectrophoretic focusing of particles in a microchannel constriction using DC-biased AC flectric fields.},
  author={Junjie Zhu and Xiangchun Xuan},
  journal={Electrophoresis},
  year={2009},
  volume={30 15},
  pages={2668-75}
}
This paper presents a fundamental study of particle electrokinetic focusing in a single microchannel constriction. Through both experiments and simulations, we demonstrate that such dielectrophoresis-induced particle focusing can be implemented in a much smaller magnitude of DC-biased AC electric fields (10 kV/m in total) as compared to pure DC electric fields (up to 100 kV/m). This is attributed to the increase in the ratio of cross-stream particle dielectrophoretic velocity to streamwise… CONTINUE READING
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