A mathematical model of an acoustoelectric transducer based on the use electrokinetic phenomenon flow potential is proposed. It shown theoretically that increases in proportion to strength constant electric pumping field, which confirmed experimentally. The described converter has variable sensitivity. Rather large values sensitivity microphone have been obtained results work can be used design...

We present a theory to investigate electrokinetic behavior, namely, electrorotation and dielectrophoresis under alternating current (ac) applied fields for a pair of touching inhomogeneous colloidal particles and biological cells. These inhomogeneous particles are treated as graded ones with physically motivated model dielectric and conductivity profiles. The mutual polarization interaction bet...

Active manipulation of cells, such as trapping, focusing, and isolation, is essential for various bioanalytical applications. Herein, we report a hybrid electrokinetic technique for manipulating mammalian cells in physiological fluids. This technique applies a combination of negative dielectrophoretic force and hydrodynamic drag force induced by electrohydrodynamics, which is effective in condu...

The mechanisms by which electrokinetic factors might influence the filtration rate of aqueous electrolyte solutions through membranes are discussed. The filtration rate of a thorium chloride solution in which the membrane is isoelectric is compared with those of other solutions. The maximum filtration rate is found at the isoelectric concentration, the rate falling as the electrokinetic potenti...

during the last decade, the expansion of urbanization and industrial activities caused serious environmental problems such as soil pollution. novel technologies are required to remediate soil contamination with toxic contaminants, including heavy metals and organic pollutants. in recent years, there have been increasing attempts to improve soil remediation efficiency. electrokinetic (ek) is an ...

We develop a multiphysics model to study the contribution of electrokinetics on the biomolecular detection process and provide a physical explanation of the two to three orders of magnitude difference in detection time between experimental results and theoretical predications at ultralow concentration. The electrokinetic effects, including electrophoretic force and electroosmotic flow, have bee...

In a recent paper in this journal, Jefimenko (Jefimenko O D 2001 J. Phys. A: Math. Gen. 34 6143–56) used time-dependent generalizations of the Coulomb and Biot–Savart laws to infer the existence of ‘electrokinetic’ and ‘magnetokinetic’ fields due to radial acceleration of charges in circular motion. It is shown here that for the stationary charge and current distributions discussed in Jefimenko...