Fabrication, characterization, and antibacterial activity of ferrite, chromite, and aluminate nanoparticles

Zn 0.33 Co 0.33 Mg 0.33 X 2 O 4 nanoparticles (NPs), where X = Fe, Cr, Al and denoted by F, C, and A, were prepared by the co-precipitation method. X-ray diffraction patterns validated the formation of NPs with cubic spinel structure with the detection of small amounts of impurities in samples C (Cr...

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Bibliographic Details
Published in:Materials research express 2024-01, Vol.11 (1), p.15003
Main Authors: El Hajjar, Israa, Bitar, Maryam Al, Zahr, Rayan, Zahr, Sarah, Khalil, Mahmoud, Awad, R
Format: Article
Language:English
Subjects:
aluminate
antibacterial activity
Chromite
co-precipitation
Coliforms
Diffraction patterns
E coli
Electron micrographs
Electrons
Energy dispersive X ray analysis
Energy value
ferrite
Ferrites
Ferromagnetism
Fourier transforms
Hysteresis
Infrared spectroscopy
Iron constituents
Magnetic anisotropy
Magnetic moments
Magnetic saturation
Microorganisms
Nanoparticles
Photoelectrons
Spectrum analysis
Valence
Vibration mode
X ray analysis
X ray photoelectron spectroscopy
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Summary:Zn 0.33 Co 0.33 Mg 0.33 X 2 O 4 nanoparticles (NPs), where X = Fe, Cr, Al and denoted by F, C, and A, were prepared by the co-precipitation method. X-ray diffraction patterns validated the formation of NPs with cubic spinel structure with the detection of small amounts of impurities in samples C (Cr 2 O 3 ) and A (MgO). Transmission electron micrographs showed a nearly spherical shape for samples F and A. However, sample C revealed cubic and nearly spherical shapes. Energy-dispersive x-ray analysis ensured the presence of chemical constituents in all samples. The vibrational modes of NPs were confirmed with Fourier transform infrared spectroscopy. The direct bandgap energy values, calculated using ultraviolet-visible spectroscopy, were in the range of 2.355 and 2.967 eV for F, C, and A samples. X-ray photoelectron spectroscopy analysis confirmed the compositions as well as the valence states of all elements. Magnetic hysteresis (M–H) loops revealed a soft ferromagnetic behavior. Sample F exhibited a higher saturation magnetization, remanent magnetization, magnetic moment, and magnetic anisotropy compared to those of samples C and A. The antibacterial activity of the tested samples against four bacteria ( Staphylococcus aureus, Stenotrophomonas maltophilia, Escherichia coli, and Enterococcus faecium ) was determined using the broth microdilution assay, minimum bactericidal concentration (MBC), and time-kill test. The prepared NPs exhibited varying antibacterial activity due to multiple factors. These results highlighted the potential utility of the ternary ferrite, chromite, and aluminate NPs in the treatment of microbial infections, particularly multidrug-resistant bacteria.
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/ad1774