LAUSR

Nano(Se, Ag, Au) capped with triazole-based polymers are promising nanomaterials for medicine and technique. Natural biopolymers are capable of exhibiting high efficiency in stabilization of metal/nonmetal nanoparticles. In this work, fungal extracellular polymers were found to contribute positively to the formation of hybrid polymeric element-containing nanocomposites and their biological activity. The impact of Se-, Ag-, or Au- nanocomposites chemically obtained in the matrix of homo- and co-polymer of vinyltriazole, on mushroom cultures with different taxonomic characteristics and growth conditions was studied. Enhanced mycelium growth caused by the nanocomposites implementation in the nutrient media was a prerequisite for making the Se-, Ag- or Au-containing polymeric agents based on the fungal extracellular metabolites. Sixty biopreparations thus obtained were screened for the bactericidal effect. Element-containing biocomposites suppressed the bacterial phytopathogens from the genera Micrococcus , Pectobacterium , Pseudomonas , Xanthomonas . Comparative studies of the chemically-and-biologically synthesized polymeric composites comprising selenium or metal nanoparticles would contribute to scientific foundations of manufacturing and implementing the innovative agents under question.