Dielectric behaviour of living cell suspensions

Camelia Prodan, Emil Prodan

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


The dielectric permittivity of suspensions of arbitrarily shaped, shelled and charged particles is calculated in the limit of small concentrations and weak applied electrical fields. It is proved that the dielectric behaviour at low frequencies is dominated by the effects of the diffusion of the free charges on the shell surfaces. Our theoretical formula is valid in the low range of frequencies (α dispersion) as well as in the high range of frequencies (β dispersion). It will result that one can measure the membrane electrical potential by a simple investigation of the dielectric properties of living cell suspensions.

Original languageEnglish (US)
Pages (from-to)335-343
Number of pages9
JournalJournal of Physics D: Applied Physics
Issue number3
StatePublished - Feb 7 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films


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