Optically induced electrokinetic patterning and manipulation of particles

Stuart J. Williams, Purdue University - Main Campus
Aloke Kumar, Birck Nanotechnology Center, Purdue University, West Lafayette
Steven Wereley, Purdue University - Main Campus

Date of this Version



DOI: 10.1063/1.3200938

This document has been peer-reviewed.



The ability to easily and dynamically control fluid mo- tion as well as manipulate particles in suspension is impor- tant for the development and characterization of a variety of lab-on-a-chip processes. Recently, we have introduced an op- tically induced electrokinetic technique termed rapid electro- kinetic patterning (REP) that can rapidly concentrate, trans- late, and pattern colloids of many different sizes and compositions. We have tested polystyrene, latex, and silica beads in sizes ranging from 49 nm to 3.0 um.1,2


Nanoscience and Nanotechnology