Results 131 to 140 of about 4,425 (180)

Applications of dielectrophoresis in biotechnology

Trends in Biotechnology, 1997
Recent progress in the development of microelectrode structures has led to new techniques for the dielectrophoretic characterization and sorting of cells, microorganisms and other bioparticles using nonuniform AC electric fields. These methods utilize differences in the dielectric polarizabilities of cells for their effectiveness, and factors ...
R, Pethig, G H, Markx
openaire   +2 more sources

Dielectrophoresis of Proteins in Solution

The Journal of Physical Chemistry B, 2020
A nonionic particle placed in the gradient of an electric field experiences the dielectrophoretic force which scales linearly with the gradient of the electric field squared. The proportionality constant is the dielectrophoretic susceptibility, that is, a linear transport coefficient. For proteins in solution, it is mostly affected by the following two
Matthias Heyden, Dmitry V. Matyushov
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Multiple frequency dielectrophoresis

ELECTROPHORESIS, 2007
AbstractA novel method of modeling multiple frequency dielectrophoresis (MFDEP) is introduced based on the concept of an effective Clausius–Mossotti factor, CMeff, for a particle that is exposed to electrical fields of different frequencies, coming either from one or multiple pairs of electrodes. This analysis clearly illustrates how adding frequencies
Mario, Urdaneta, Elisabeth, Smela
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Trapping of DNA by dielectrophoresis

ELECTROPHORESIS, 2002
Under suitable conditions, a DNA molecule in solution will develop a strong electric dipole moment. This induced dipole allows the molecule to be manipulated with field gradients, in a phenomenon known as dielectrophoresis (DEP). Pure dielectrophoretic motion of DNA requires alternate current (AC) electric fields to suppress the electrophoretic effect ...
Charles L, Asbury, Alan H, Diercks, Ger, van den Engh   +2 more
openaire   +2 more sources

Moving pulsed dielectrophoresis

Lab on a Chip, 2013
In this paper, we introduce a dielectrophoresis (DEP)-based handling method that allows fine 3D manipulation of beads in suspension using a lab on a chip device. The device consists of two layers of linear electrodes on the top and bottom of a microfluidic channel.
Honegger, T., Peyrade, D.
openaire   +3 more sources

Floating electrode dielectrophoresis

ELECTROPHORESIS, 2006
AbstractIn practice, dielectrophoresis (DEP) devices are based on micropatterned electrodes. When subjected to applied voltages, the electrodes generate nonuniform electric fields that are necessary for the DEP manipulation of particles. In this study, electrically floating electrodes are used in DEP devices.
Saar, Golan, David, Elata, Meir, Orenstein, Uri, Dinnar   +3 more
openaire   +2 more sources

A unified theory of dielectrophoresis and travelling wave dielectrophoresis

Journal of Physics D: Applied Physics, 1994
We show for the first time that a particle in a non-uniform AC electric field experiences a dielectrophoretic force arising from spatial non-uniformities of the magnitude and phase of the field interacting, respectively, with the in-phase and out-of-phase components of the induced dipole moment.
X -B Wang, Y Huang, F F Becker, P R C Gascoyne   +3 more
openaire   +1 more source

Protein Dielectrophoresis in Solution

The Journal of Physical Chemistry B, 2018
Proteins experience either pulling or repelling force from the gradient of an external electric field due to the effect known as dielectrophoresis (DEP). The susceptibility to the field gradient is traditionally calculated from the solution of the electrostatic boundary-value problem, which requires assigning a dielectric constant to the protein.
Salman S. Seyedi, Dmitry V. Matyushov
openaire   +2 more sources

Bubble dielectrophoresis

Journal of Applied Physics, 1977
The force due to polarization exerted on dielectric particles, vapor or gas bubbles, and voids in insulating dielectric liquids is an example of dielectrophoresis. This force is directly proportional to the gradient of the electric field intensity.
T. B. Jones, G. W. Bliss
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Dielectrophoresis of air

Applied Physics Letters, 2020
Dielectrophoresis describes neutral particles moving in non-uniform electric fields. We experimentally observe the dielectrophoresis of gas generated by macroscopic electrodes and show that this effect can be large enough to generate audible sound. The observed sound agrees with a multiscale model of dielectrophoresis of gas.
Lucas Soffer, Abigail Rendos, Aleksandrs L. Zosuls, Brian M. Walsh, Keith A. Brown   +4 more
openaire   +1 more source