Cornet-Like Phosphotriazine/Diamine Polymers as Reductant and Matrix for the Synthesis of Silver Nanocomposites with Antimicrobial Activity

The synthesis of silver nanoparticles attached on the surface of a hollow cornet-like polymer matrix which served as a reductant and host matrix is described. This hybrid organic/ inorganic macromolecular matrix is exhibiting anion-exchange properties, porous structure and hollow morphologies, and absorptions in the visible light region. Due to the anion-exchange property and the 3D orientation of the macromolecular chains the material is defining a new functional organic/inorganic hybrid. For the synthesis of nanoparticles, no other reducing agents were used and silver nanoparticles with a mean diameter of less than 20 nm were attached on the surface of the polymer, thus inheriting the composite with high antibacterial activity tested in bacterial strains and yeasts.