Electrokinetic patterning of colloidal particles with optical landscapes

Author

• Stuart J. Williams, Purdue University - Main CampusFollow
• Aloke Kumar, Purdue University - Main CampusFollow
• Steven Wereley, Purdue University - Main CampusFollow

Abstract

We demonstrate an opto-electrokinetic technique for noninvasive 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).

Keywords

INDUCED FLUID-FLOW; FREQUENCY ELECTRIC-FIELD; SINGLE CELLS; MANIPULATION; CRYSTALS; MICROELECTRODES; FORCES

Date of this Version

2008

Recommended Citation

Williams, Stuart J.; Kumar, Aloke; and Wereley, Steven, "Electrokinetic patterning of colloidal particles with optical landscapes" (2008). Birck and NCN Publications. Paper 396.
https://docs.lib.purdue.edu/nanopub/396