Kh. E. Yunusov, A. A. Sarymsakov, and S. Sh. Rashidova
Institute of Polymer Chemistry and Physics, Uzbekistan Academy of Sciences,
ul. Abdully Kadyri 7b, 100128 Tashkent, Uzbekistan
e-mail: haydar-yunusov@rambler.ru
Received March 6, 2013;
Revised Manuscript Received November 12, 2013
Abstract—Silver nanoparticles stabilized in a solution of sodium carboxymethyl cellulose with a degree of
substitution of 0.85 and a degree of polymerization of 600 have been synthesized. The structuring; physical,
chemical, and mechanical properties; and antimicrobial activities of films prepared from sodium carboxyme-
thyl cellulose solutions containing silver nanoparticles have been studied. The shapes, quantities, and sizes of
the silver nanoparticles occurring in the sodium carboxymethyl cellulose films were determined with the use of
transmission electron microscopy, atomic force microscopy, and UV spectroscopy. It was found that an increase
in the concentration of silver nitrate in sodium carboxymethyl cellulose solutions, as well as photoirradiation
of the films, leads to the changes in the sizes and shapes of silver nanoparticles. The shapes, sizes, and quantities
of silver nanoparticles determine their biological activity. An increase in the quantity of 5- to 25-nm silver nano-
particles was found to enhance the microbicidal activities of the carboxymethyl cellulose films.
DOI: 10.1134/S0965545X14030183
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