Direct passage of ions across lipid membranes-II. Experimental

P. A. Grigor'ev, L. N. Yermishkin, V. S. Markin

Research output: Contribution to journalArticlepeer-review


The authors have studied experimentally the direct passage of the fat-soluble ion tetraphenylboron through artificial phospholipid membranes. As a result this enabled them to determine the diffusion coefficient of tetraphenylboron in the membrane D = 4 × 10-12 cm2/sec, the partition coefficient η = 400, the dielectric constant of the region of the polar groups ε ≈ 13 and the surface capacitance of the membrane C~10 μF/cm2.

Original languageEnglish (US)
Pages (from-to)825-831
Number of pages7
Issue number5
StatePublished - Dec 1 1972

ASJC Scopus subject areas

  • Biophysics


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