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  2. Zeta potential - Wikipedia

    en.wikipedia.org/wiki/Zeta_potential

    The zeta potential is an important and readily measurable indicator of the stability of colloidal dispersions. The magnitude of the zeta potential indicates the degree of electrostatic repulsion between adjacent, similarly charged particles in a dispersion. For molecules and particles that are small enough, a high zeta potential will confer ...

  3. File:Diagram of zeta potential and slipping planeV2.svg

    en.wikipedia.org/wiki/File:Diagram_of_zeta...

    English: Diagram showing the ionic concentration and potential difference as a function of distance from the charged surface of a particle suspended in a dispersion medium. Date 1 February 2012

  4. Double layer (surface science) - Wikipedia

    en.wikipedia.org/wiki/Double_layer_(surface_science)

    Electric potential at this plane is called electrokinetic potential or zeta potential (also denoted as ζ-potential). [25] [26] The electric potential on the external boundary of the Stern layer versus the bulk electrolyte is referred to as Stern potential. Electric potential difference between the fluid bulk and the surface is called the ...

  5. DLVO theory - Wikipedia

    en.wikipedia.org/wiki/DLVO_theory

    In 1923, Peter Debye and Erich Hückel reported the first successful theory for the distribution of charges in ionic solutions. [7] The framework of linearized Debye–Hückel theory subsequently was applied to colloidal dispersions by S. Levine and G. P. Dube [8] [9] who found that charged colloidal particles should experience a strong medium-range repulsion and a weaker long-range attraction.

  6. Sedimentation potential - Wikipedia

    en.wikipedia.org/wiki/Sedimentation_potential

    Smoluchowski's sedimentation potential is defined where ε 0 is the permitivity of free space, D the dimensionless dielectric constant, ξ the zeta potential, g the acceleration due to gravity, Φ the particle volume fraction, ρ the particle density, ρ o the medium density, λ the specific volume conductivity, and η the viscosity. [8]

  7. Streaming current - Wikipedia

    en.wikipedia.org/wiki/Streaming_current

    Streaming currents in well-defined geometries are a sensitive method to characterize the zeta potential of surfaces, which is important in the fields of colloid and interface science. [1] In geology, measurements of related spontaneous potential are used for evaluations of formations. Streaming potential has to be considered in design for flow ...

  8. Electrophoresis - Wikipedia

    en.wikipedia.org/wiki/Electrophoresis

    where ε r is the dielectric constant of the dispersion medium, ε 0 is the permittivity of free space (C 2 N −1 m −2), η is dynamic viscosity of the dispersion medium (Pa s), and ζ is zeta potential (i.e., the electrokinetic potential of the slipping plane in the double layer, units mV or V).

  9. Surface charge - Wikipedia

    en.wikipedia.org/wiki/Surface_charge

    An interfacial potential is thus defined as a charge located at the common boundary between two phases (for example, an amino acid such as glutamate on the surface of a protein can have its side chain carboxylic acid deprotonated in environments with pH greater than 4.1 to produce a charged amino acid at the surface, which would create an ...