Investigation on silver nanoparticles interaction withcollagen based materials

This work investigate the possibility of designing new materials based on nanosilver particles and new approaches for application on collagen materials as ecological alternative to phenolic active ingredients or quaternary ammonium compounds. The new compounds, nanosilver colloidal solutions with 32-137 ppm Ag concentration and particle size of 5 nm were characterized by Dynamic Light Scattering, TEM and UV-vis spectroscopy. The possible interaction of collagen with nanosilver colloidal solutions and polyhydroxiurethanes doped with nanosilver particles was carried out by using circular dycroism spectrometry studies on model treated collagen solution and AAS on medical leather and furskins.