electrohydrodynamics – TechConnect Briefs

Applications of Dielectrophoretic / electrohydrodynamic electrodes for concentration of biological nanoparticles

Fatoyino H.O., Huebner Y., Hoettges K.F., Hughes M.P., Labeed F.H., University of Surrey, UK

Dielectrophoresis (DEP) is a phemomenon of induced particle motion in non-uniform electric fields. The effect is frequency dependent; by monitoring the motion of particles in AC fields and ananlysing the change in motion with frequency, [...]

Electrohydrodynamic Interactions of an AFM Tip and a Biological Membrane

Fan T.H., Fedorov A.G., Georgia Institute of Technology, US

In biological applications, AFM imaging needs to be performed in the natural (aqueous) living environment of the cell in order to observe molecular level interactions and biochemical processes in-situ in the electrolyte solution and to [...]

Particle Movement in Microelectrode Structures in AC Electric Fields, Under the Influence of Dielectrophoresis and Electrohydrodynamics

Green N.G., University of Glasgow, UK

The use of AC electric fields for the manipulation, characterisation and separation of particles in suspension (dielectrophoresis: DEP) has become an area of considerable interest, both in basic research of the underlying physical mechanisms [1] [...]

Electrohydrodynamic Interactions of an AFM Tip and a Biological Membrane

Fan T.H., Fedorov A.G., Georgia Institute of Technology, US

In biological applications, AFM imaging needs to be performed in the natural (aqueous) living environment of the cell in order to observe molecular level interactions and biochemical processes in-situ in the electrolyte solution and to [...]

Simulation of Electrically-Excited Flows in Microchannels for Mixing Application

Meisel I., Ehrhard P., Forschungszentrum Karlsruhe GmbH, DE

In the present paper we propose a method for improved mixing in microchannels. The basic idea is to excite a secondary vortex flow around an obstacle within the micromixer by applying an external oscillatory electrical [...]