Journal of Siberian Federal University. Biology / Silver Nanoparticles as a New Generation of Antimicrobial Prophylaxis

Full text (.pdf)
Issue
Journal of Siberian Federal University. Biology. 2019 12 (3)
Authors
Garipov, Ilnur T.; Khaydarov, Renat R.; Gapurova, Olga U.; Khaydarov, Rashid A.; Lutfi Firdaus, M.; Efimova, Irina L.; Evgrafova, Svetlana Yu.
Contact information
Garipov, Ilnur T.: Institute of Nuclear Physics Academy of Sciences of Republic of Uzbekistan 1 Huroson, Ulugbek vil., Tashkent, 100214, Uzbekistan; Khaydarov, Renat R.: Institute of Nuclear Physics Academy of Sciences of Republic of Uzbekistan 1 Huroson, Ulugbek vil., Tashkent, 100214, Uzbekistan; ; ORCID: 0000-0001-9228-2727; Gapurova, Olga U.: Institute of Nuclear Physics Academy of Sciences of Republic of Uzbekistan 1 Huroson, Ulugbek vil., Tashkent, 100214, Uzbekistan; Khaydarov, Rashid A.: Institute of Nuclear Physics Academy of Sciences of Republic of Uzbekistan 1 Huroson, Ulugbek vil., Tashkent, 100214, Uzbekistan; Lutfi Firdaus, M.: University of Bengkulu Jl. WR Supratman, Kandang Limun, Bengkulu, 38371, Indonesia; Efimova, Irina L.: V.N. Sukachev Institute of Forest SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/28 Akademgorodok, Krasnoyarsk, 660036, Russia; Evgrafova, Svetlana Yu.: V.N. Sukachev Institute of Forest SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/28 Akademgorodok, Krasnoyarsk, 660036, Russia
Keywords
silver; nanoparticles; nanomaterial; fibrous sorbent; water treatment
Abstract

Over the last 20 years, metallic silver in the form of Ag nanoparticles has made a remarkable comeback as an example of a nanomaterial for control of microorganisms. The purpose of our study was a) to quantitatively estimate the antimicrobial effect of silver nanoparticles compared with that of silver ions and b) to check the efficacy of nanosilver as an antimicrobial agent against a range of microbes on the surface of water-soluble paint, 100% cotton fabric, and fibrous chemisorbent. Minimum inhibitory concentration tests quantitatively showed that Ag nanoparticles were less efficient than Ag+ ions against representatives of gram-positive / gram-negative bacteria and cosmopolitan saprotrophic fungi. Antifungal/antibacterial effects against Aspergillus niger, Penicillium phoeniceum, and Staphylococcus aureus were confirmed for nanosilver concentrations of even 1 μg/cm2 on the surface of cotton fabric and 0.8 μg/cm2 in water-soluble paint. As the concentration of nanosilver in water-soluble paint/cotton fabric was increased to 7 μg/cm2, the growth of Bacillus subtilis and Escherichia coli was suppressed as well. Microbiological tests conducted over a period of 60 days showed that there was no biofilm growth on the surface of a silver nanoparticle-coated fiber sorbent during its everyday operation as a household water treatment filter. Thus, silver nanoparticles as an add-on to water-soluble paints, textile fabrics or fiber chemisorbents had a remarkable antibacterial/antifungal effect, although some of the Ag nanoparticles were agglomerated into larger colloidal clusters

Pages
266-276
DOI
10.17516/1997-1389-0301
Paper at repository of SibFU
http://elib.sfu-kras.ru/handle/2311/125598

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