Anisotropic Colloidal Interactions & Assembly in AC Electric Fields

Soft Matter ◽  
2021 ◽  
Author(s):  
Rachel S. Hendley ◽  
Isaac Torres-Diaz ◽  
Michael A. Bevan
Keyword(s):  
Electric Fields ◽  
High Frequency ◽  
Colloidal Particles ◽  
Dipole Field ◽  
Colloidal Interactions ◽  
Ac Electric Fields ◽  
Dipole Interactions ◽  
High Frequency Ac

We match experimental and simulated configurations of anisotropic epoxy colloidal particles in high frequency AC electric fields by identifying analytical potentials for dipole-field and dipole-dipole interactions. We report an inverse...

kT-Scale Colloidal Interactions in High Frequency Inhomogeneous AC Electric Fields. I. Single Particles

Langmuir ◽  
2011 ◽  
Vol 27 (15) ◽  
pp. 9211-9218 ◽  
Author(s):  
Jaime J. Juárez ◽  
Jing-Qin Cui ◽  
Brian G. Liu ◽  
Michael A. Bevan
Keyword(s):  
Electric Fields ◽  
High Frequency ◽  
Single Particles ◽  
Colloidal Interactions ◽  
Ac Electric Fields

Energy landscapes for ellipsoids in non-uniform AC electric fields

Soft Matter ◽  
2018 ◽  
Vol 14 (6) ◽  
pp. 934-944 ◽  
Author(s):  
Isaac Torres-Díaz ◽  
Bradley Rupp ◽  
Yuguang Yang ◽  
Michael A. Bevan
Keyword(s):  
Analytical Model ◽  
Electric Fields ◽  
High Frequency ◽  
Energy Landscapes ◽  
Ac Electric Fields ◽  
Ellipsoidal Particles ◽  
High Frequency Ac

We report an analytical model for energy landscapes of ellipsoidal particles in non-uniform high-frequency AC electric fields to identify all possible 3D positions and orientations.

Tonks-Frenkel instability in electrolyte under high-frequency AC electric fields

2019 ◽  
Vol 42 (3) ◽  
Author(s):  
G. S. Ganchenko ◽  
S. Amiroudine ◽  
H. Bodiguel ◽  
S. V. Polyanskikh ◽  
E. A. Demekhin
Keyword(s):  
Electric Fields ◽  
High Frequency ◽  
Ac Electric Fields ◽  
High Frequency Ac

kT-Scale Colloidal Interactions in High-Frequency Inhomogeneous AC Electric Fields. II. Concentrated Ensembles

Langmuir ◽  
2011 ◽  
Vol 27 (15) ◽  
pp. 9219-9226 ◽  
Author(s):  
Jaime J. Juárez ◽  
Brian G. Liu ◽  
Jing-Qin Cui ◽  
Michael A. Bevan
Keyword(s):  
Electric Fields ◽  
High Frequency ◽  
Colloidal Interactions ◽  
Ac Electric Fields

Particle Compaction with Alternating Electric Fields: The Effects of Electrode Geometry

1986 ◽  
Vol 73 ◽  
Author(s):  
Alan J. Hurd
Keyword(s):  
Electric Fields ◽  
Colloidal Particles ◽  
Dielectric Material ◽  
Double Layers ◽  
Electrode Geometry ◽  
Dipole Interactions ◽  
Alternating Electric Fields ◽  
Alternating Electric Field ◽  
Dc Bias ◽  
Induced Dipoles

ABSTRACTA technique for inducing ordered, close-packed arrangements of various symmetries among colloidal particles is discussed. An external alternating electric field applied to the colloid induces dipole interactions of variable strength by polarizing either the dielectric material of the particles or their electrostatic double layers. Ordering in various symmetries can be obtained by switching the field rapidly between pairs of electrodes, thereby changing the orientation of the induced dipoles. A small dc bias serves to deposit and compact the aligned particles.

Polarization and interactions of colloidal particles in ac electric fields

2008 ◽  
Vol 129 (6) ◽  
pp. 064513 ◽  
Author(s):  
Manish Mittal ◽  
Pushkar P. Lele ◽  
Eric W. Kaler ◽  
Eric M. Furst
Keyword(s):  
Electric Fields ◽  
Colloidal Particles ◽  
Ac Electric Fields

Manipulation of Organic and Inorganic Colloidal Particles by Dielectrophoretic Forces

2007 ◽  
Author(s):  
Ramazan Asmatulu ◽  
Dennis Siginer
Keyword(s):  
Liquid Medium ◽  
Electric Fields ◽  
Colloidal Particles ◽  
Dielectrophoretic Force ◽  
Inorganic Particles ◽  
Ac Electric Fields ◽  
The Creation ◽  
Manipulation Process

Recently, manipulation of the micro and nanoscale objects has been of great interest in verity of engineering and scientific areas. Dielectrophoretic force (DEP) induced technique is predominantly used in the manipulation process in a liquid medium. The phenomenon behind DEP involves the creation of electric forces on particles to generate momentum in nonuniform electric fields, usually coming from AC electric fields. In the present study, we will discuss about the effects of DEP for the manipulation of organic and inorganic particles at micro and nanoscale in detail.

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