Peer-reviewed articles 17,970 +



Title: COPPER-CHITOSAN NANOCOMPOSITES: METAL VAPOR SYNTHESIS, SPECTROSCOPIC CHARACTERIZATION AND ANTIFUNGAL ACTIVITY

COPPER-CHITOSAN NANOCOMPOSITES: METAL VAPOR SYNTHESIS, SPECTROSCOPIC CHARACTERIZATION AND ANTIFUNGAL ACTIVITY
A. Vasil'kov;A. Naumkin;M. Rubina;M. A. Alghuthaymi;K. A. Abd-Elsalam
1314-2704
English
18
6.1
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+ ? 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 copperchitosan 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.
conference
18th International Multidisciplinary Scientific GeoConference SGEM 2018
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
139-146
02-08 July, 2018
website
cdrom
1785
chitosan; copper nanoparticles; metal vapor synthesis; antifungal activity