NANODISPERSIONS OF POLYELECTROLYTES BASED ON HUMIC SUBSTANCES: ISOLATION, PHYSICO-CHEMICAL CHARACTERIZATION AND EVALUATION OF BIOLOGICAL ACTIVITY Article Uspenskaya E.V., Syroeshkin A.V., Pleteneva T.V., Kazimova I.V., Grebennikova T.V., Fedyakina I.T., Lebedeva V.V., Latyshev O.E., Eliseeva O.V., Larichev V.F., Garaev T.M., Maximova T.V., Morozova M.A., Hanh P.M. Pharmaceutics. MDPI AG. Vol. 13. 2021.