V.I. Fedorov - Dr.Sc. (Biol.), Professor, Institute of Laser Physics of SB RAS (Novosibirsk)
V.A. Vechkanov - Post-graduate Student, Novosibirsk State Medical University
O.V. Papafilova - Ph.D. (Biol.), Novosibirsk State Medical University

Red blood cells of rats were irradiated by low intensity terahertz radiation (pulse duration is 1 ps, power pulse is 8,5 mW, repetition rate is 76 MHz, band is 0,1-1,75 THz, exposition is 60 min). Non-irradiated erythrocytes were as control. Irradiated and non-irradiated red blood cells were placed in the 0.54, 0.52, 0.5, or 0.48 % solution of NaCl. Cell membrane damage was detected by the appearance in cytoplasm of trypan blue. The proportion of stained cells in experimental samples was similar with control by placing the cells in 0.54 and 0.52 % NaCl solution. At placing the cells in 0.5 % NaCl solution the proportion of stained cells in experimental samples was higher than in control significantly. In 0.48 % NaCl solution this proportion was increased to a greater extent than in the control samples. Thus, a viability of rat red blood cells which were exposed by low intensity terahertz radiation is decreased to a greater extent than in the control samples at serial dilution of NaCl hypotonic solution for each 0.02 % in region of minimal osmotic resistance value (0.5 % and lower).

 

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