Separation of propeller-like particles by shear and electric field

Separation of propeller-like particles by shear and electric field Separation of one type of chiral particle from mirror-image particles in a racemic mixture by shear flow and rotating electric field is studied theoretically. In shear flow the chiral particles and their mirror-image particles migrate in opposite directions along the vorticity direction. In a rotating electric field, they migrate in opposite directions along the axis of rotation. In each case, the migration velocity of the particles is calculated for a model chiral particle: a propeller-like particle which consists of two disks, at an angle to each other, rigidly connected to a thin rod. Effects of shear rate, field strength, and particle structure on the migration velocity are discussed. It is shown that the chirality of the particle is characterized by different parameters depending on the method of separation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review Fluids American Physical Society (APS)

Separation of propeller-like particles by shear and electric field

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Separation of propeller-like particles by shear and electric field

Abstract

Separation of one type of chiral particle from mirror-image particles in a racemic mixture by shear flow and rotating electric field is studied theoretically. In shear flow the chiral particles and their mirror-image particles migrate in opposite directions along the vorticity direction. In a rotating electric field, they migrate in opposite directions along the axis of rotation. In each case, the migration velocity of the particles is calculated for a model chiral particle: a propeller-like particle which consists of two disks, at an angle to each other, rigidly connected to a thin rod. Effects of shear rate, field strength, and particle structure on the migration velocity are discussed. It is shown that the chirality of the particle is characterized by different parameters depending on the method of separation.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
eISSN
2469-990X
D.O.I.
10.1103/PhysRevFluids.2.064303
Publisher site
See Article on Publisher Site

Abstract

Separation of one type of chiral particle from mirror-image particles in a racemic mixture by shear flow and rotating electric field is studied theoretically. In shear flow the chiral particles and their mirror-image particles migrate in opposite directions along the vorticity direction. In a rotating electric field, they migrate in opposite directions along the axis of rotation. In each case, the migration velocity of the particles is calculated for a model chiral particle: a propeller-like particle which consists of two disks, at an angle to each other, rigidly connected to a thin rod. Effects of shear rate, field strength, and particle structure on the migration velocity are discussed. It is shown that the chirality of the particle is characterized by different parameters depending on the method of separation.

Journal

Physical Review FluidsAmerican Physical Society (APS)

Published: Jun 29, 2017

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