Fabrication, microstructure, morphological and magnetic properties of W-type ferrite by co-precipitation method: Antibacterial activity

Sagayaraj, R.; Dhineshkumar, T.; Prakash, A. S.; Aravazhi, S.; Chandrasekaran, G.; Jayarajan, D.; Sebastian, S.

doi:10.1016/j.cplett.2020.137944

Cited by 37 publications

(6 citation statements)

References 39 publications

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“…For instance, the higher absorbance peak intensity led to more production of excitons, more ROS generation, strengthening the inhibitory effect [93,94]. Sagayaraj et al [132] revealed an inverse relationship between E g and antibacterial activity, which is consistent with our findings. According to UV data, sample A had the highest absorbance peak intensity (figure 6(a)) and the lowest E g value (table 3), which may have contributed to its antibacterial potential (table 6).…”

Section: Antibacterial Activity 381 Mic Determinationsupporting

confidence: 92%

“…This caused the metabolism to slow down, leading to cell death [141]. Moreover, the narrow E g induced a facile and effective migration of electrons from the valence band to conduction band [132]. As a result, the production of ROS and the interaction of NPs with bacteria in a short period of time increased, inducing more bacteria damage [132].…”

Section: Mbc Determinationmentioning

confidence: 99%

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

El Hajjar,

Bitar,

Zahr

et al. 2024

Mater. Res. Express

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Zn0.33Co0.33Mg0.33X2O4 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 (Cr2O3) 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.

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Section: Antibacterial Activity 381 Mic Determinationsupporting

confidence: 92%

Section: Mbc Determinationmentioning

confidence: 99%

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

El Hajjar,

Bitar,

Zahr

et al. 2024

Mater. Res. Express

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“…However, there is a certain degree of polydispersity, and the crystalline quality of the sample is reasonably compromised. [107,113,114]…”

Section: Chemical Coprecipitation Techniquementioning

confidence: 99%

Rare‐Earth Doped Iron Oxide Nanostructures for Cancer Theranostics: Magnetic Hyperthermia and Magnetic Resonance Imaging

Laha

Thorat

Singh

et al. 2021

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He received his Ph.D. degree in materials sciences from the University of South Australia and his research primarily focuses on carbon capture using nanoporous materials. He has published 39 articles including review and research articles in high-quality materials science-based journals including Chemical Society Reviews and Advanced Materials. His contribution to the research has been acknowledged in the form of 1580 google scholar citations with an h-index of 18.

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“…Finally, they reserved a mu e furnace and annealed at 600 o C for 4 hours and got polycrystalline nanoparticles. Co-precipitation and ferritzation step followed such as [46,47]: 53 3) with FCC-structure but also for the existence of impurity peaks con rming the polycrystalline phase of the present samples [42]. The lattice constant, X-ray density, dislocation density, strain and crystallite size values determined by using (311) prominent peak.…”

Section: Characterizationmentioning

confidence: 73%

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

Sagayaraj

Aravazhi

Chandrasekaran

2021

Preprint

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In the current research, Cu0.5Co0.3Mo0.2Fe2O4 mixed ferrite nanoparticles have been synthesized using Co-precipitation method. XRD patterns show the development of polyphasic copper, cobalt and molybdenum mixed spinel composition. The particle size of ferrite system is 16nm and they are nanoparticles. The lattice constant was determined to be 8.368 Å used for the highest peak (311). FTIR spectroscopy shows the lower octahedral and higher tetrahedral frequency alignment of ions in the spinel ferrite leading to the octahedral 550 cm− 1 and the tetrahedral 471 cm− 1 vibration modes. TEM micrographs showed spherical morphology and their particle size less than 50 nm, which correlated XRD crystallite size. VSM shows excellent ferrimagnetic properties because of higher coercivity (985.29 G). These higher coercivity materials can make cathode content for Li-ion batteries.

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Fabrication, microstructure, morphological and magnetic properties of W-type ferrite by co-precipitation method: Antibacterial activity

Cited by 37 publications

References 39 publications

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

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

Rare‐Earth Doped Iron Oxide Nanostructures for Cancer Theranostics: Magnetic Hyperthermia and Magnetic Resonance Imaging

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

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