Two-dimensional micromanipulation using liquid crystals

Mieda, Yoshitaka; Furutani, Katsushi
March 2005
Applied Physics Letters;3/7/2005, Vol. 86 Issue 10, p101901
Academic Journal
We developed a two-dimensional micromanipulation method using liquid crystals. The combination of the backflow effect in the twisted nematic cell and the electrostatic force for the naturally charged microparticles causes the net movement. By adjusting the polarity and the duty ratio of the rectangular voltage, the particles can be driven two-dimensionally and bidirectionally. The velocity of the particles depended on the duty ratio, amplitude, and frequency of the applied voltage.


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