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In order to study dielectric behavior of non-spherical cells growing in suspension culture, a dielectric theory has been developed based on the shell-ellipsoid model that is a conducting ellipsoid covered with a thin insulating shell. The theory predicts three dielectric relaxations for a suspension of ellipsoidal cells with three different semiaxes. For prolate spheroidal cells with two different...
On-line dielectric measurements of yeast cells (Saccharomyces cerevisiae) growing in suspension culture were made over a frequency range from 0.1 to 100 MHz. The amplitude of the dielectric dispersion centered at about 1 MHz increased exponentially with cultivation time in the logarithmic growth phase and then remained constant in the stationary phase. This result clearly indicates that the mass...
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