Electrokinetic effects in nematic suspensions: Single-particle electro-osmosis and interparticle interactions
نویسندگان
چکیده
منابع مشابه
Electro-osmosis in nematic liquid crystals.
We derive a mathematical model of a nematic electrolyte based on a variational formulation of nematodynamics. We verify the model by comparing its predictions to the results of the experiments on the substrate-controlled liquid-crystal-enabled electrokinetics. In the experiments, a nematic liquid crystal confined to a thin planar cell with surface-patterned anchoring conditions exhibits electro...
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as regards thle ilnumber and duration of the observa-itiolls possil)le, als w\ell as in coiise(lueCiee of the relatively low streingtli of cuirrentt necess.arily employed when it was desired to preserve uiiiiijured the vitality of tlle liviing surface to which the currenit wi-as applied. Sinice living mnattei is largely colloidal it d-asdeterminied to study a,s far as p)ossible electroosmosis i...
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The current theory of alternating-current electro-osmosis (ACEO) is unable to explain the experimentally observed flow reversal of planar ACEO pumps at high frequency (above the peak, typically 10-100 kHz), low salt concentration (1-1000 microM) , and moderate voltage (2-6 V), even taking into account Faradaic surface reactions, nonlinear double-layer capacitance, and bulk electrothermal flows....
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Magneto-optic tweezers were used for measurements of liquid-crystal-mediated forces between spherical beads with tangential anchoring in thin nematic samples. Repulsive force, which results from the quadrupolar symmetry of defects around the immersed beads, decreases proportionally to 1/x6, with x being the bead separation. The velocity with which the particles are pushed apart also follows the...
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Overview Membranes in the outer hair cell lateral wall form a naturally occurring nanostructure which acts as a microelectromechanical (MEM) system. Computational and optical techniques are being developed to predict, verify and refine the description of nanoscale behavior in the outer hair cell (OHC) lateral wall. The biological, engineering and physics expertise of an interdisciplinary three-...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2018
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.98.022703