Copper-chitosan nanocomposites: metal vapor synthesis, spectroscopic characterization and antifungal activityстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 января 2019 г.
Аннотация:New hybrid materials based on copper nanoparticles stabilized in an ultimately biocompatible chitosan matrix were prepared via metal vapor synthesis. Transmission electron microscopy shows that the particles have predominantly spherical form, polydisperse character, the mean diameter about 2-4 nm and a rather uniform distribution in the chitosan matrice. X-ray photoelectron spectroscopy of Cu-carrying chitosan powder obtained by impregnation of chitosan powder with Cu-acetone organosol indicated two oxidized copper states on the surface. Cu2+ и Cu+ amounts calculated from the Cu 2p spectra were 2.6 and 6.0%, respectively. The structure of the materials was studied using X-ray techniques. The antifungal activity of the copper-chitosan nanocomposites against the linear growth of pathogenic fungi Fusarium solani and Macrophomina phaseolina was evaluated in vitro and their effects on hyphal growth were evaluated. The results show that the copper-chitosan nanocomposites synthesized via metal vapor synthesis with acetone as intermediate nanoparticle stabilizer are effecient in inhibiting growth of Fusarium solani and Macrophomina phaseolina fungal hyphae.