Bordi F, Cametti C, Misasi R, De Persio R, Zimatore G
Dipartimento di Medicina Interna, Università di Roma Tor Vergata, Rome, Italy.
Eur Biophys J. 1997;26(3):215-25. doi: 10.1007/s002490050074.
The electrical properties of the cytoplasmatic membrane of human erythrocyte cells have been evaluated by means of dielectric spectroscopy measurements in the radiowave frequency range, using the so-called "suspension method". Measurements have been carried out at different volume fractions of the corpuscular phase (the cell haematocrit) in order to investigate the influence of the cell-cell interactions on the electrical parameters (the membrane permittivity epsilon and the membrane conductivity sigma) of the cell membrane and a set of new values are proposed. Moreover, the influence of different alkali metal ions (Na+, K+, Cs+, Li+) on the ion permeation properties of the membrane are investigated and the structural alterations in the membrane organized briefly discussed.
