TY - JOUR
T1 - Nonlinear Electrophoresis of Colloids Controlled by Anisotropic Conductivity and Permittivity of Liquid-Crystalline Electrolyte
AU - Paladugu, Sathyanarayana
AU - Conklin, Christopher
AU - Viñals, Jorge
AU - Lavrentovich, Oleg D.
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/3/30
Y1 - 2017/3/30
N2 - Liquid-crystal electrolytes enable nonlinear electrophoresis of colloidal particles with velocities proportional to the square of the applied field. We demonstrate that the magnitude and even the polarity of electrophoretic mobility can be controlled by the anisotropic electric conductivity and dielectric permittivity of the liquid crystal. In particular, the reversal of electrophoretic mobility can be triggered either by temperature or composition changes that alter the signs of the conductivity and permittivity anisotropies. Controllable reversal of mobility adds to the list of advantages of anisotropic electrolytes over their isotropic counterparts.
AB - Liquid-crystal electrolytes enable nonlinear electrophoresis of colloidal particles with velocities proportional to the square of the applied field. We demonstrate that the magnitude and even the polarity of electrophoretic mobility can be controlled by the anisotropic electric conductivity and dielectric permittivity of the liquid crystal. In particular, the reversal of electrophoretic mobility can be triggered either by temperature or composition changes that alter the signs of the conductivity and permittivity anisotropies. Controllable reversal of mobility adds to the list of advantages of anisotropic electrolytes over their isotropic counterparts.
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U2 - 10.1103/PhysRevApplied.7.034033
DO - 10.1103/PhysRevApplied.7.034033
M3 - Article
AN - SCOPUS:85017005499
SN - 2331-7019
VL - 7
JO - Physical Review Applied
JF - Physical Review Applied
IS - 3
M1 - 034033
ER -