Abstract. The present report gives the main results obtained in the studies of dlelectrophoresls of cellular suspensions by the optical technique of registration. The description of this technique and its comparison with the earl~er developed microscopic techniques of cell dielectrophoresls is given. It is shown that the frequency dependences of the orientation and pearlchain-formation effect of cells in the electric fleld and the effect of their dielectrophoretic precipitation on the electrodes, called orientation and dlelectrophoretlc spectra, respectively, depend on the conductivity and pH of suspension as well as on the adsorption of substances on the cell surface. The conclusion is advanced that the method of cellular dielectrophoresis is a promising one for the analysis of electrical and morphological properties of cells and for the study of the influence of physical and chemical factors on the living cells.
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