Effect of Zinc Oxide Nanoparticles on Loaded Antibiotics Against Multidrug-Resistant Acinetobacter spp.
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCMI-8-2_004
تاریخ نمایه سازی: 30 مرداد 1401
Abstract:
Background: Metal oxide nanoparticles (NPs) have shown promising efficacy for combating bacterial resistancedue to their antibacterial properties. This research investigated the effect of zinc oxide NPs (ZnO-NPs) on theantibacterial activity of conventional antibiotics including ciprofloxacin (CIP), cefotaxime (CTX), and colistin(CST) against multidrug-resistant Acinetobacter isolates.Methods: The disc diffusion method was performed to detect the pattern of antibiotic resistance in isolates. Thesynthesized ZnO-NPs via the solvothermal method were characterized by field emission scanning electronmicroscopy (FESEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS). Finally, thebroth microdilution technique was conducted to demonstrate the antibacterial activity of CIP, CTX, and CSTantibiotics with and without a sub-inhibitory concentration of ZnO-NPs.Results: XRD, EDS, and FESEM results confirmed the crystalline structure of ZnO-NPs, and the average sizewas ۱۰۰±۵۸.۶۸ nm. All isolates were discovered to be of multidrug-resistant (MDR) type and fully susceptibleto CST. The antibacterial activity of CTX and CIP was restored when combined with a sub-inhibitory level ofZnO-NPs (۰.۲۵ mg/L), and the highest activity was obtained at the concentrations of ۳۲ μg/mL CTX and ۸ μg/mL CIP. Eventually, ZnO-NPs showed a synergistic effect on the antibacterial properties of CST against MDRAcinetobacter.Conclusions: This research indicated that the combination of ZnO-NPs with some common antibiotics can beconsidered as a novel strategy for reducing the spread of antibiotic-resistant bacteria.
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Authors
Behnaz Shokrollahi
Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
akram Sadat Tabatabaee Bafroee
Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
Tayebeh Saleh
Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran