STRUCTURE, MORPHOLOGY AND ANTIMICROBIEL PROPERTIES NANOCOMPOSITES BASED ON POLYELECTROLYTE COMPLEXE AND METALIC NANOPARTICLES ARGENTUM AND CUPRUM

Abstract

Using metods of x-ray diffraction (XRD), transmission electron microscopy (TEM) and antimocrobial properties with test-bacteriums E. coli and S. aureus vere investigated nanocomposites type polymer-metal based on stoichiometric polyelectrolyte complexe (PEC) and metalic nanoparticles argentum and cuprum. Samples PEC with amorphous structure vere formated based on polyelectrolytes natural parentage: Na-carboxymethyl cellulose and β-cyclodextrin that functionalyzed amino grups. Using sorbtion by samples PEC of ions salts AgNO3 and CuSO4 , that losung in water (concentration 0,1 mole/l) vere formated samples of triples polyelectrolyte-metalic coplexes (TPMC). By using method XRD showed existence in volyme TPMC of areas (with amorphous strucrure) of fragmented macromoleculare coils of PEC (macroligande) that co-ordinated as cations Сu2+, so cations Ag+. In result of chemical reduced (using salt NaBH4) this cations transition metalі in volum TPMC, vere formed polymer– metalic nanocomposites with metal nanoparticles argentum and cuprum, what shown using metod XRD. By using metod TEM vere installed, what in nanocomposites metalic nanoparticles cuprum whose middle size 12,4 nm, whereas nanoparticles argentum – 4,3 nm. Antimicrobial tests polymer-metal nanocomposites shown, that antimicrobial properties possess nanoparticles argentum and cuprum.