Antibacterial Activity of Mesoporous Silica Nanofibers
- سال انتشار: 1399
- محل انتشار: Iranian Journal of Chemistry and Chemical Engineering، دوره: 39، شماره: 3
- کد COI اختصاصی: JR_IJCCE-39-3_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 96
نویسندگان
Department of Chemistry, Faculty of Science, University of Guilan, Rasht, I.R. IRAN
Department of Chemistry, Faculty of Science, University of Guilan, Rasht, I.R. IRAN
Department of Biology, Faculty of Science, University of Guilan, Rasht, I.R. IRAN
چکیده
In this research, the fabrication of MCM-۴۱ mesoporous material nanofibers by an electrospinning technique was performed. The MCM-۴۱ nanofibers (MCM-۴۱ NFs) as a novel host on the incorporation of silver has been studied in [Ag(NH۳)۲]NO۳ precursor solution through the heat-treatment process. The formation of silver-loaded MCM-۴۱ NFs at various calcinating temperatures were also studied. The silver-containing materials (Ag/MCM-۴۱ NFs) were characterized using Fourier Transform InfraRed (FT-IR) spectroscopy, powder X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), UltraViolet-Visible Diffuse Reflectance Spectroscopy (UV-Vis DRS), and Transmission Electron Microscopy (TEM). The results indicated that both Ag and Ag۲O NanoParticles (NPs) were loaded in MCM-۴۱ NFs at different calcinating temperature. Silver compounds with a diameter of ۱۰−۱۵ nm were highly dispersed in the framework of mesoporous silica nanofibers. The results indicated that Ag loading contents on the MCM-۴۱NFs were ۱۰.۵۳ wt%. These Ag/MCM-۴۱ NFs Possess an enhanced antibacterial effective against both Gram-positive and Gram-negative bacteria by preventing the aggregation of silver NPs and continuously releasing silver ions. In general, the silver-containing materials with more Ag۲O NPs demonstrated an excellent antibacterial activity. The Minimum Inhibitory Concentrations (MIC) obtained ۳۰ and ۶۰ µg/mLfor the silver-containing MCM-۴۱ NFs with more Ag۲O NPs against E. coli and S. aureus, respectively. MCM-۴۱ type nanofibers play an important role in the antibacterial activity of nanocomposites.کلیدواژه ها
MCM-۴۱ nanofibers, Ag/MCM-۴۱ nanofibers, Antibacterial activity, Ag۲O-MCM-۴۱ nanofibers, Diffuse Reflectance Spectroscopyاطلاعات بیشتر در مورد COI
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