Directed Assembly of Janus Particles under High Frequency ac-Electric Fields: Effects of Medium Conductivity and Colloidal Surface Chemistry

Langmuir ◽  
2012 ◽  
Vol 28 (37) ◽  
pp. 13201-13207 ◽  
Author(s):  
Lu Zhang ◽  
Yingxi Zhu
Keyword(s):  
Surface Chemistry ◽  
Electric Fields ◽  
High Frequency ◽  
Directed Assembly ◽  
Janus Particles ◽  
Ac Electric Fields ◽  
High Frequency Ac ◽  
Medium Conductivity

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

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...

Dielectrophoretic Assembly of Metallodielectric Janus Particles in AC Electric Fields

Langmuir ◽  
2008 ◽  
Vol 24 (23) ◽  
pp. 13312-13320 ◽  
Author(s):  
Sumit Gangwal ◽  
Olivier J. Cayre ◽  
Orlin D. Velev
Keyword(s):  
Electric Fields ◽  
Janus Particles ◽  
Ac Electric Fields

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

Directed Assembly of Nanoelements Using Electrostatically Addressable Templates

2005 ◽  
Vol 901 ◽  
Author(s):  
Xugang Xiong ◽  
Prashanth Makaram ◽  
Kaveh Bakhtari ◽  
Sivasubramanian Somu ◽  
Ahmed Busnaina ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electric Field ◽  
Electric Fields ◽  
Directed Assembly ◽  
Single Wall Carbon Nanotubes ◽  
Nanoparticle Assembly ◽  
Single Wall Carbon ◽  
Ac Electric Fields ◽  
Ac Electric Field ◽  
Dc Electric Field

AbstractDirected assembly of nanoparticles and single wall carbon nanotubes (SWNTs) using electrostatically addressable templates has been demonstrated. Nanoparticles down to 50 nm are assembled on the Au micro and nanowires of the templates in a DC and AC electric fields. The nanoparticles can be assembled in monolayers and thicker layers. Single wall carbon nanotubes (SWNTs) are also assembled without alignment on Au wires using the nanotemplate. As the size of the template wires is reduced to nanoscale dimensions, an AC electric field proves to be more effective for nanoparticle assembly than a DC electric field.

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

Resonant BLDC Motor Drive System for Medical Applications

2019 ◽  
Vol 14 ◽  
Author(s):  
C. Vidhya ◽  
V. Ravikumar ◽  
S. Muralidha
Keyword(s):  
High Frequency ◽  
Pulse Width Modulation ◽  
Power Converter ◽  
Low Power Consumption ◽  
Motor Drive ◽  
Medical Applications ◽  
Bldc Motor ◽  
Three Phase ◽  
High Frequency Ac ◽  
Motor Drive System

: The objective of this paper is to implement an ac link universal power converter controlled BLDC motor for medical applications. The ac link universal power converter is a soft switched high frequency ac link converter, created using the parallel combination of an inductor and a capacitor. The parallel ac link converter handle the ac voltages and currents with low reactive ratings at the link and offers improved power factor, low power consumption, more efficiency and less weight on comparison with the traditional dc link converter. Because of the high throughput, BLDC motors are preferred widely medical applications. A modulation technique called Space Vector Pulse Width Modulation (SVPWM) is used to generate the three phase power for the BLDC motors from the input DC supply. To validate the proposed system, simulations are performed in MATLAB – Simulink and an experimental prototype is constructed to supplement the simulation results.

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