Results 231 to 240 of about 8,618,238 (284)

Streaming current and streaming potential on structured surfaces

Journal of Colloid and Interface Science, 1986
Abstract An account is given in this paper of the electrokinetic theory of surfaces covered with charged layers. Streaming current measurement is shown to be equivalent to electrophoretic mobility measurement. A new model is introduced for the distribution of fixed charges inside a surface layer.
E Donath, A Voigt
openaire   +1 more source

The zeta potential of extended dielectrics and conductors in terms of streaming potential and streaming current measurements

Physical Chemistry Chemical Physics, 2012
The electrical characterization of surfaces in terms of the zeta potential (ζ), i.e., the electric potential contributing to the interaction potential energy, is of major importance in a wide variety of industrial, environmental and biomedical applications in which the integration of any material with the surrounding media is initially mediated by the ...
Amparo M, Gallardo-Moreno, Virginia, Vadillo-Rodríguez, Julia, Perera-Núñez, José M, Bruque, M Luisa, González-Martín   +4 more
openaire   +2 more sources

Apparatus for determination of zeta potentials from streaming potentials

Journal of Applied Physiology, 1963
A system was developed to measure the streaming potential generated between the ends of a capillary by the flow of a fluid through the capillary. Zeta potential can be calculated from the streaming potential. Adequate sensitivity and reproducibility were achieved by making special electrodes: silver wires plated in KCl solution and embedded in agar ...
R E, BECK, V, MIRKOVITCH, P G, ANDRUS, R I, LEININGER   +3 more
openaire   +2 more sources

Measurement of streaming potentials in bone microchannels

2012 5th International Conference on BioMedical Engineering and Informatics, 2012
When bone fluid flow through the microchannels in bone, it can induce streaming potentials which are considered to play a role for bone remodeling. This paper aimed to determine the difference of streaming potentials when the fluid flows through Haversian canals and canaliculi experimentally.
Yihan Wang, Lianyun Xu, Zhende Hou
openaire   +1 more source

Theory of the Streaming Potential

Nature, 1948
BOOTH1 has recently pointed out the unsatisfactory nature of the existing theory of electrokinetics, and suggested modifications to the commonly used equations of Helmholtz2 and Smoluchowski3, with particular reference to the phenomenon of electrophoresis.
openaire   +1 more source

An anatomical model for streaming potentials in osteons

Journal of Biomechanics, 1984
An anatomical model for streaming potentials in osteons is developed to characterize the electromechanical effect in bone. The model accounts for the microstructure of the osteon and is based upon first principles of electrochemistry, electrokinetics, continuum mechanics and fluid dynamics.
S R, Pollack, N, Petrov, R, Salzstein, G, Brankov, R, Blagoeva   +4 more
openaire   +2 more sources

Streaming potential in nature

2005
For the first time, QUINCKE found in 1859 the phenomenon of electric streaming potential. Twenty years later HELMHOLTZ published a mathematical expression for the streaming potential.
openaire   +1 more source

Streaming potential of intact wet bone

Journal of Biomechanics, 1990
The conversion of mechanical loads to bioelectrical signals in bone have been suggested to control repair and remodeling. These signals in wet bone are attributed to the electrokinetic behavior where mechanical forces cause electrical signals due to motion of an ion carrying extracellular fluid in the bone matrix (streaming potentials).
N, Guzelsu, W R, Walsh
openaire   +2 more sources

Microelectrodes for Measuring Streaming Potential in Bone

IEEE Sensors, 2005., 2006
The various components of your Bone is a complex structure, which is able to adapt to according to mechanical and chemical stimuli. It is believed that the fluid transport plays an essential role in this process. A number of studies were performed in the 1980s using single electrodes but this did not give the micro-model.
Kernen, E., De Rooij, N., Smit, Th, Huyghe, J., Van Duyl, W., Tanase, D., French, P. J.   +6 more
openaire   +3 more sources

Influence of hydrophobic effects on streaming potential

Physical Review E, 2013
We study the influence of hydrophobic effects on streaming potential mediated flow through a narrow confinement. In a clear departure from the approach used in prior works, we use a phase-field model to capture the hydrophobicity-induced depletion in the near wall region, and express the variation of viscosity and permittivity across the interfacial ...
Jeevanjyoti, Chakraborty, Suman, Chakraborty   +1 more
openaire   +2 more sources