Transport of Particles in Liquid Crystals
arXiv:1311.6846 · doi:10.1039/c3sm51628h
Abstract
Colloidal particles in a liquid crystal (LC) behave very differently from their counterparts in isotropic fluids. Elastic nature of the orientational order and surface anchoring of the director cause long-range anisotropic interactions and lead to the phenomenon of levitation. The LC environment enables new mechanisms of particle transport that are reviewed in this work. Among them the motion of particles caused by gradients of the director, and effects in the electric field: backflow powered by director reorientations, dielectrophoresis in LC with varying dielectric permittivity and LC-enabled nonlinear electrophoresis with velocity that depends on the square of the applied electric field and can be directed differently from the field direction.
20 pages, 20 figures
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Cited by in corpus (20)
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- Directional self-locomotion of active droplets enabled by nematic environment
- Design of nematic liquid crystals to control microscale dynamics
- Tunable colloid trajectories in nematic liquid crystals near wavy walls
- Collective behavior of active topological solitons, knotted streamlines, and transport of cargo in liquid crystals
- Omnidirectional transport and navigation of Janus particles through a nematic liquid crystal film
- Microfluidic Flow of Cholesteric Liquid Crystals
- Magnetically responsive gourd-shaped colloidal particles in cholesteric liquid crystals
- Experimental realization of the "lock-and-key" mechanism in liquid crystals
- Locomotion and transport in a hexatic liquid crystal
- Liquid-crystal enabled electrophoresis: Scenarios for driving and reconfigurable assembling of colloids
- Anchoring-dependent bifurcation in nematic microflows within cylindrical capillaries
- Solution landscapes in nematic microfluidics
- Electric field driven controllable motility of metal-dielectric Janus particles with boojum defects in a nematic liquid crystal
- Field-controlled columnar and planar patterning of cholesteric colloids
- Saturn ring defect around a spherical particle immersed in nematic liquid crystal
- Weak-anchoring effects in a thin pinned ridge of nematic liquid crystal
- Defect-polymorphism controlled electrophoretic propulsion of anisometric microparticles in a nematic liquid crystal
- Electrophoresis of metal-dielectric Janus particles with dipolar director symmetry in nematic liquid crystals
- Nematic droplets at fibres