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01-09-2018 | PHYSICAL APPROACHES AND PROBLEMS OF DATA INTERPRETATION IN THE LIFE SCIENCES | Issue 9/2018

Technical Physics 9/2018

Biologically Active Hybrid Nanosystems Based on Zero-Valent Selenium Nanoparticles, Biocompatible Polymers, and Polyelectrolitic Complex

Journal:
Technical Physics > Issue 9/2018
Authors:
S. V. Valueva, M. E. Vylegzhanina, P. E. Alekseeva, T. E. Sukhanova
Important notes
Translated by N. Wadhwa

Abstract

The molecular-conformal, morphological, and kinetic characteristics of selenium-containing nanosystems (NSs) based of biocompatible polymer matrices of different origins modified Se0 nanoparticles for the Se0 : polymer mass ratio ν = 0.1 have been analyzed using static and dynamic light scattering methods, UV spectroscopy, flow birefringence, and atomic force and transmission electron microscopies. We have determined the rate constants for the formation of selenium-containing NSs, the size characteristics of the corresponding nanostructures, as well as their shape, molecular mass, and density. It is found that isolated dense spherical polymolecular selenium-containing nanostructures are formed in the aqueous solution. Our results can be used as the physicochemical foundation for the modification of polymer materials with clearly manifested physiological activity by biogenic elements in the zero-valent form.

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