Formation of Ag/AgCl nanoparticles in the matrix of the exopolysaccharide of a diazotrophic strain Azotobacter chroococcum XU1
- Authors: Rasulov B.A.1,2, Davranov K.D.3, Jun L.W.1
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Affiliations:
- Xinjiang Institute of Ecology and Geography
- Institute of Genetics and Plants Experimental Biology
- National University of Uzbekistan named after Mirzo Ulughbek
- Issue: Vol 86, No 2 (2017)
- Pages: 197-201
- Section: Experimental Articles
- URL: https://journals.rcsi.science/0026-2617/article/view/163009
- DOI: https://doi.org/10.1134/S0026261717020175
- ID: 163009
Cite item
Abstract
A complex of Ag/AgCl nanoparticles was synthesized on the basis of the extracellular polysaccharide of Azotobacter chroococcum XU1 and 10 mM AgNO3 solution. The complex was characterized by UV spectroscopy, X-ray diffraction, and scanning electron microscopy. Colloidal solutions of the complex had absorption peaks at 260 and 420 nm, indicating the formation Ag/AgCl nanoparticles. The size of the nanoparticles varied from 6 to 50 nm. The nanobiocomposite consisting of the exopolysaccharide matrix and Ag/AgCl nanoparticles exhibited a fungicidal effect against such plant pathogens as Fusarium oxysporum f. sp. vasinfectum and Verticillium dahliae.
About the authors
B. A. Rasulov
Xinjiang Institute of Ecology and Geography; Institute of Genetics and Plants Experimental Biology
Author for correspondence.
Email: bakhtiyor_1980@mail.ru
China, Urumqi; Toshkent
K. D. Davranov
National University of Uzbekistan named after Mirzo Ulughbek
Email: bakhtiyor_1980@mail.ru
Uzbekistan, Tashkent city
Li Wen Jun
Xinjiang Institute of Ecology and Geography
Email: bakhtiyor_1980@mail.ru
China, Urumqi
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