Zobrazeno 1 - 10
of 11
pro vyhledávání: '"L. N. Shirokova"'
Publikováno v:
Plasticheskie massy. :13-15
The synthesis of silver nanoparticles was carried out by the method of thermochemical reduction of silver ions using 6-О-carboxymethyl chitin as a matrix and stabilizer. Based on the analysis of UV-VIS spectroscopy and transmission electron microsco
Publikováno v:
Russian Journal of Applied Chemistry. 93:1655-1660
Different forms of 6-О-carboxymethyl chitin were prepared, namely, the salt form containing, the carboxy group in the –COONa form, the acid form containing the carboxy group in the –COOН form, and the mixed form containing the units in the acid
Publikováno v:
Polymer Science, Series A. 61:469-474
The processes of association of 6-O-carboxymethyl chitin macromolecules (in salt and mixed forms) in aqueous solution are studied by dynamic light scattering. It is shown that the solution of 6‑O‑carboxymethyl chitin in the salt form contains two
Autor:
L. N. Shirokova, V. A. Aleksandrova
Publikováno v:
Polymer Science, Series B. 60:727-734
To study the effect of pH of the medium on the formation of clusters and silver nanoparticles in a polyelectrolyte matrix, 6-O-carboxymethyl chitin was synthesized in three forms: salt, acid, and mixed. It was shown that the sorption ability in relat
Publikováno v:
Applied Biochemistry and Microbiology. 54:496-500
Silver nanoparticles have been obtained in a matrix of 6-O-carboxymethyl chitin in the presence of D-glucose as a reducing agent by microwave hydrothermal synthesis. The TEM results show that the silver nanoparticles have a spherical shape; the parti
Publikováno v:
Inorganic Materials: Applied Research. 7:730-736
It has been demonstrated for the first time that, in the process of gamma-induced reduction of Ag+ in aqueous solution of biodegradable carboxymethyl chitin (CMC) polyelectrolyte, a metal-polymer colloidal solution is formed, wherein silver nanoparti
Publikováno v:
Protection of Metals and Physical Chemistry of Surfaces. 52:66-73
The methods of sonochemistry and “green” nanotechnology were used to develop a single-stage process to transfer iron nanoparticles from their micellar solution in isooctane to aqueous solution of carboxymethyl chitin excluding an intermediate sta
Autor:
V. A. Alexandrova, L. N. Shirokova
Publikováno v:
Doklady Physical Chemistry. 464:234-237
New radiation-induced bactericide metal–polymer nanosystems based on 6-O-carboxymethyl chitin and silver nanoparticles were prepared. Variation in exposure dose and extent of filling with silver ions allowed the preparation of macromolecular system
Publikováno v:
Polymer Science Series B. 52:621-627
The stabilizing effect of a biodegradable polymer in a macromolecular system based on 6-O-carboxymethyl chitin polyelectrolyte and iron nanoparticles is studied. Stabilization is associated with hydrogen bonding between the functional groups of the p
Publikováno v:
Applied Biochemistry and Microbiology. 45:380-383
A new polymer composite based on carboxymethylchitin and silver nanoparticles was obtained in order to produce biodegradable wound coating films. The number of metal nanoparticles in the composite may be easily regulated as was verified by UV-VIS-spe