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This article represents the results of the study made by methods of molecular optics of nanostructures formed in process of reduction of ionic selenium in selenite-ascorbate redox system in water solutions of high molecular polymeric stabilizers of anion type: synthetic polyacid – poly-2-acrylamide-2-methylpropansulfacid with 〈〈 〈w = 3×106 and biopolyanion deoxyribonucleic acid with 〈w = 20×106. It was shown that polyanion – nanoparticle complex obtained under conditions of total saturation of adsorption capacity of selenium nanoparticles (mass ratio ┥ of the components selenium : polymer is equal to 0.1) is close to its thermodynamic stability boundary: the second virial coefficient made up A*2 = -0.07×10-4 cm3mol/g2 for system of deoxyribonucleic acid – nano Se0H2O and ╅*2 = 0.2×10-4 cm3mol/g2 for system of poly-2-acrylamide-2methylpropansulfacid – nano Se0H2O. In the field of formation of stable dispersions the values of free energy ΔG* of interaction of macromolecule – nanoparticle of selenium have been calculated for anion type nanostructures. It was found that in both cases high-molecular structures with 〈*w = 200×106 (deoxyribonucleic acid as stabilizer) and with 〈*w = 75×106 (poly-2-acrylamide-2methylpropansulfacid as stabilizer) were formed with close dimensions (R*g – statistic dimensions of the nanoformation, R*h – hydrodynamic dimensions of the nanoformation) and average densities Ф*. The values of conformational parameters ┩* and р* testify a form of nanostructures approximating to spherical form: ┩*= R*g/ R*h = 1 (for both systems), р* = 1.1 for a system of deoxyribonucleic acid nano Se0H2O and р* = 1.5 for a system of poly-2-acrylamide-2methylpropansulfacid – nano Se0H2O. On the base of the experimental data related to the values of 〈*w for spherical nanostructures assuming their mono-nuclear morphology we estimated a radius of selenium nucleus that made up Rnucl = 12 nm (deoxyribonucleic acid as stabilizer) and 9 nm (poly-2-acrylamide-2methylpropansulfacid as stabilizer). The following conclusion has been made: under adsorption of macromolecules of strong acids on nanoparticles of selenium the spherical nanoparticles with similar types of morphology with similar dimensions, densities and width of polymer shell are formed.

Self-Organization and Morphological Characteristics of the Selenium Containing Nanostructures on the Base of Strong Polyacids