Traveling-wave electrophoresis for microfluidic separations.
Models and microfluidic experiments are presented of an electrophoretic separation technique in which charged particles whose mobilities exceed a tunable threshold are trapped between the crests of a longitudinal electric wave traveling through a stationary viscous fluid. The wave is created by applying periodic potentials to electrode arrays above and below a microchannel. Predicted average velocities agree with experiments and feature chaotic attractors for intermediate mobilities.
Edwards
Boyd F
BF
Department of Physics, West Virginia University, Morgantown, West Virginia 26506, USA.
Timperman
Aaron T
AT
Carroll
R Lloyd
RL
Jo
Kyoo
K
Mease
Jon M
JM
Schiffbauer
Jarrod E
JE
D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004586:Electrophoresis / Q000295:instrumentation / Q000379:methods*; D007477:Ions / Q000737:chemistry; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation / Q000379:methods*; D008956:Models, Chemical
D004129:Dimethylpolysiloxanes; D007477:Ions; C013830:baysilon