Results 181 to 190 of about 8,555 (217)
Some of the next articles are maybe not open access.
Transport Properties and Electrokinetic Characterization of an Amphoteric Nanofilter
Langmuir, 2006Transport properties of a tubular nanofilter with amphoteric properties have been investigated by means of the SEDE (steric, electric, and dielectric exclusion) homogeneous model. Within the scope of this 1D model, the separation of solutes results from transport effects (described by means of extended Nernst-Planck equations) and interfacial phenomena
Anthony, Szymczyk +3 more
openaire +2 more sources
1997
Cations and anions adsorbed by soil particles carrying surface charges are not present totally on the surface of the particles. Actually, in a soil-water system, a portion of adsorbed ions is distributed near the surface, forming an electric double layer at the interface between the solid particle and the liquid phase.
openaire +1 more source
Cations and anions adsorbed by soil particles carrying surface charges are not present totally on the surface of the particles. Actually, in a soil-water system, a portion of adsorbed ions is distributed near the surface, forming an electric double layer at the interface between the solid particle and the liquid phase.
openaire +1 more source
Electrokinetic Properties of Fuzzy Colloidal Particles
Journal of Colloid and Interface Science, 2000The presence of a thin polymer layer on the surface of a colloidal particle can have a profound effect on its electrophoretic mobility. The model developed here treats the hydrodynamics of the polymer layer as a distribution of Stokes resistance centers within a thin diffuse layer; fixed charge may reside on the surface of the particle core or ...
openaire +2 more sources
Energy-dependent changes of the electrokinetic properties of chloroplasts
Biochemistry, 1980Free-flow electrophoresis of spinach chloroplasts reveals that illumination causes a marked increase of net negative surface charge. The light stimulation is most pro- nounced in broken chloroplasts, missing the outer envelope membranes. Broken chloroplasts, prepared in the presence of MgCl2, showed a much larger light stimulation (90-12Ph) than if ...
Schapendonk, A.H.C.M. +5 more
openaire +3 more sources
Effects of surface conduction on the electrokinetic properties of colloids
Journal of the Chemical Society, Faraday Transactions, 1992To quantify the effects of surface conduction behind the slip plane on the electrokinetic transport properties of colloids, we have extended the thin-double-layer theory of Fixman for dilute sols of spherical particles. The computations show that it causes the static conductivity and the low-frequency dielectric response of the sol to increase and the ...
Kijlstra, J. +2 more
openaire +2 more sources
Electrokinetic properties of hydroxyapatite under flotation conditions
Journal of Colloid and Interface Science, 2010The effect of calcite supernatant, calcium, and carbonate ions on the hydroxyapatite (HA) zeta potential without and in the presence of sodium oleate (1x10(-4) mol L(-1)) was examined within the pH range from 4 to 12. The interpretation of results was based on the HA surface and oleate solution chemistry, and on some floatability tests.
Vučinić, Dušica +2 more
openaire +3 more sources
The Electrokinetic Properties of Colloidal Magnetic Iron Oxides
Langmuir, 2012A novel electrokinetic streaming potential technique has been used to determine the ζ potential behavior of three magnetic iron oxides, (Fe(3)O(4), γ-Fe(2)O(3), and CoFe(2)O(4)) as a function of pH and salt concentration. These colloidal materials, (nanosize in one dimension), are held in the form of a plug by means of external magnets.
I M, Metcalfe, T W, Healy
openaire +2 more sources
Changes in the electrokinetic properties of platelets during their aggregation
Archives of Biochemistry and Biophysics, 1966Abstract The electrophoretic mobility of human blood platelets suspended in plasma or standard saline has been examined. The mobility of the human platelet in standard saline at pH 7 is −0.85 μ per second per volt per centimeter with an isoelectric point approximately at pH 3.6.
G V, Seaman, P S, Vassar
openaire +2 more sources
Physicochemical and electrokinetic properties of silica/lignin biocomposites
Carbohydrate Polymers, 2013A new method of synthesis of novel composites obtained from silica and Kraft lignin has been proposed. Silica used in the study was obtained by three methods (hydrolysis and condensation of tetraethoxysilane, precipitation in a nonpolar and polar medium with the use of sodium silicate).
Łukasz, Klapiszewski +3 more
openaire +2 more sources
[Electrokinetic properties of Arthobacter siderocapsulatus].
Mikrobiologiia, 1980The electro-kinetic properties of Arthrobacter siderocapsulatus were determined using microelectrophoresis in alternating electric field. The surface of bacterial cells was shown to bear positive charge within a wide range of pH. The positive charge of the cells should be attributed apparently to the presence of mucous capsules containing manganese ...
E A, Suprun +2 more
openaire +1 more source