Using fluorescent probe 4-(n-dimethyl-aminosbyryl)-1-methyl-pyridine (
DSM) the effect of electrons with the energy 5 MeV on the structure of
erythrocyte membrane has been investigated. It was found that in the
irradiated erythrocyte ghosts the number of DSM binding sites increase
s. Irradiation was suggested to increase the negative surfase charge o
f the erythrocyte membrane.