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International Journal of Nanoscience and Nanotechnology (IJNN)، جلد ۱۸، شماره ۲، صفحات ۱۲۳-۱۳۳
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عنوان انگلیسی Preparation of Composites of Antibacterial ‎Materials Based on Bacterial Cellulose ‎and Silver Nanoparticles for Wound ‎Healing
چکیده انگلیسی مقاله    This study examined the preparation of composites of Bacterial Cellulose (BC) / silver nanoparticles (Ag NPs) using a substrate for the fermentation of the bacteria Gluconacetobacter xylinus C-3 and a reducing agent for the synthesis of silver nanoparticles in situ. The presence of silver in the BC/ Ag NPs composites was confirmed by various characterization tests. Thus, according to Scanning Electron Microscopy, the average size of silver was recorded at 700 nm. X-ray phase analysis showed an increase in the size of cellulose crystallites up to 122 Å with a decrease in the amount of silver nanoparticles. According to UV-visible spectroscopy, an identification peak was found between 420-580 nm. Measurements of the percentage of water absorption and the edge angles of wetting with water confirmed the structures of the resulting nanocomposites - with a smaller pore diameter and a narrow pore distribution over the film size, depending on the silver content. Using the disk diffusion method, excellent antimicrobial activity was shown with a decrease in the number of bacteria in relation to the pathogenic microorganism Staphylococcus (S.) aureus, Pseudomonas (P.) aeruginosa, Escherichia (E.) coli. 
کلیدواژه‌های انگلیسی مقاله Antimicrobial activity,Bacterial cellulose,composites,hydrothermal synthesis,Silver nanoparticles,‎Turkevich citrate method.‎
نویسندگان مقاله B. Rakhimova |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

K. Kudaibergenov |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

L. Sassykova |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

G. Spanova |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

S. Aknazarov |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

M. Tulepov |
‎Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, ‎‎050040, Almaty, Kazakhstan

نشانی اینترنتی https://www.ijnnonline.net/article_252428_f16f5abf3d5627143d1138c572f7917b.pdf
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