Silver Nanoparticle Adsorption on Poly(Lactic-Coglycolic Acid) Fiber During Cyclic Freezing The Argogel with Gelatin and Chitosan

The paper focuses on the sorption activity of silver nanoparticles during cyclic freezing poly(lactide-coglycolide) fibers up to −37.0°С. Silver nanoparticles are used as a part of the Argogel containing chitosan and polyvinylpyrrolidone-stabilized nanoparticles and as nanoparticles obtained by cavitation-diffusion photochemical reduction. It is found that the content of 15 nm silver nanoparticles significantly grows in the presence of gelatin in the gel composition, whereas the amount of nanoparticle clusters dramatically reduces in the same size range in the presence of chitosan. On the contrary, chitosan in the Argogel leads to the content growth of 40 nm nanoparticles.