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Electrokinetic patterning of colloidal particles with optical landscapes
Birck and NCN Publications
  • Stuart J Williams, Purdue University - Main Campus
  • Aloke Kumar, Purdue University - Main Campus
  • Steven T Wereley, Birck Nanotechnology Center - Purdue University
Abstract

We demonstrate an opto-electrokinetic technique for noninvasive particle manipulation on the surface of a parallelplate indium tin oxide (ITO) electrode that is biased with an alternating current (AC) signal and illuminated with nearinfrared (1064 nm) optical landscapes. This technique can generate strong microfluidic vortices at higher AC frequencies (>100 kHz) and dynamically and rapidly aggregate and pattern particle groups at low frequencies (<100 kHz).

Date of this Version
9-15-2008
Citation
Lab Chip, 2008, 8, 1879–1882
Citation Information
Stuart J Williams, Aloke Kumar and Steven T Wereley. "Electrokinetic patterning of colloidal particles with optical landscapes" (2008)
Available at: http://works.bepress.com/aloke_kumar/3/