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Issue 11, 2008
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Electrokinetic patterning of colloidal particles with optical landscapes

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Abstract

We demonstrate an opto-electrokinetic technique for non-invasive particle manipulation on the surface of a parallel-plate indium tin oxide (ITO) electrode that is biased with an alternating current (AC) signal and illuminated with near-infrared (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).

Graphical abstract: Electrokinetic patterning of colloidal particles with optical landscapes

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Publication details

The article was received on 25 Jun 2008, accepted on 02 Sep 2008 and first published on 15 Sep 2008


Article type: Communication
DOI: 10.1039/B810787D
Citation: Lab Chip, 2008,8, 1879-1882
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    Electrokinetic patterning of colloidal particles with optical landscapes

    S. J. Williams, A. Kumar and S. T. Wereley, Lab Chip, 2008, 8, 1879
    DOI: 10.1039/B810787D

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