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  • Electronic Resource  (2)
  • 1990-1994  (2)
  • Bias-voltage effect  (1)
  • biological cell  (1)
  • scanning dielectric microscope
  • 1
    Electronic Resource
    Electronic Resource
    Dielectric monitoring of biological cell sedimentation (1992)
    Springer
    Colloid & polymer science 270 (1992), S. 78-84 
    Details
    ISSN: 1435-1536
    Keywords: Dielectric relxation ; biological cell ; sedimentation ; erythrocyte ; interfacial polarization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A dielectric theory was developed to analyze dielectric relaxation of a system in which biological cells are settling perpendicular and parallel to electrode planes. The theory predicts that the dielectric relaxation intensity (Δε) increases markedly with increasing time when the settling direction is perpendicular to electrode planes, whereas Δε is less sensitive to the sedimentation in a direction parallel to electrode planes. These theoretical expectations agreed well with the experimental results obtained with sheep erythrocytes. Analysis based on this theory provided the sedimentation rate of sheep erythrocytes, the results being in agreement with those obtained by the conventional method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00656933
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Theoretical approach and the practice to the evaluation of structural parameters characterizing concentration polarization alongside ion-exchange membranes by means of dielectric measurement (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 766-773 
    Details
    ISSN: 1435-1536
    Keywords: Bias-voltage effect ; concentration polarization ; dielectric relaxation ; electrodialysis ; ion-exchange membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract As the application of a dielectric theory proposed previously (J Membrane Sci 64:153–161 (1991)), theoretical formulation and the practical procedure of dielectric analysis are developed to calculate the structural parameters such as the conductivity gradient and the thickness of the concentration polarization layer, the capacitances and the conductances of the two adjoining aqueous phases from the observed dielectric parameters. The procedure of calculation consequent upon the theoretical formulation was applied to double relaxation data observed for cation-exchange membrane systems under application of d.c. bias voltage. As a consequence, the structural parameters of concentration polarization were readily obtained with accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00660093
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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