Structural refinement and antimicrobial activity of aluminum oxide nanoparticles

Baghdadi, Afra Mohammed; Saddiq, Amna A.; Aissa, Abdallah; Algamal, Yousif; Khalil, N.M.

doi:10.2109/jcersj2.21140

Cited by 10 publications

(3 citation statements)

References 27 publications

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“…Inhibition of the growth of Aspergillus niger , Aspergillus flavus , and Penicillium sp. enhanced with an increase in the nanoparticle concentration was confirmed in the recent study [ 64 ]. AlOxNPs inhibited the growth of fluconazole-sensitive and resistant C. albicans and C. dubliniensis .…”

Section: Literature Reviewsupporting

confidence: 69%

A Mini Review of Antibacterial Properties of Al2O3 Nanoparticles

et al. 2022

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Bacterial antibiotic resistance is one of the most serious modern biomedical problems that prioritizes the search for new agents to combat bacterial pathogens. It is known that nanoparticles of many metals and metal oxides can have an antibacterial effect. However, the antibacterial efficacy of aluminum oxide nanoparticles has been studied little compared to the well-known antimicrobial properties of nanoparticles of oxides of metals such as zinc, silver, iron, and copper. In this review, we have focused on the experimental studies accumulated to date demonstrating the antibacterial effect of aluminum oxide nanoparticles. The review discusses the main ways of synthesis and modification of these nanoparticles, provides the proposed mechanisms of their antibacterial action against gram-positive and gram-negative bacteria, and also compares the antibacterial efficacy depending on morphological characteristics. We have also partially considered the activity of aluminum oxide nanoparticles against water microalgae and fungi. In general, a more detailed study of the antibacterial properties of aluminum oxide nanoparticles is of great interest due to their low toxicity to eukaryotic cells.

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Section: Literature Reviewsupporting

confidence: 69%

A Mini Review of Antibacterial Properties of Al2O3 Nanoparticles

et al. 2022

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“…Where, D denotes the size of the crystallite, and (k) the form factor (0.98), ƛ is the wavelength of Xray, (β) is the line boarding at a half-maximum intensity (FWHM) of an individual peak at 2Ɵ (where Ɵ is the Bragg angle) [34].The average grain size of Al2O3 nanoparticles was obtained by using the Scherer equation (10) and the lattice constants (a), (b), and (c) of γ-AlOOH and (a) of Al2O3 Nanoparticles were calculated as demonstrated in Table (1) and equations ( 11) and (12), respectively.…”

Section: Ftir Spectra V2o5nh2o and V2o5 Nanoparticlesmentioning

confidence: 99%

Untitled

2023

J. Med. Chem. Sci.

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Two nanoparticles, aluminum dioxide (Al2O3) and vanadium pentoxide (V2O5) were prepared by hydrothermal autoclave and reflex methods, respectively. Every nanoparticle was heated at two temperatures (90 °C and 400°C). The structures and surface morphology of these nanoparticles were characterized by FT-IR and UV/Visible measurements, X-ray diffraction (XRD), atomic force microscope (AFM), and scanning electron microscopy (SEM). The ninhydrin removal was measured for these nanoparticles. The results showed vanadium pentoxide has a higher ninhydrin removal activity in both cases (90 °C and 400 °C) than the aluminum oxide and the nanoparticles heated at 400 °C have more ninhydrin removal activity than the nanoparticles heated at 90 °C.

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“…ALD provides strong levels of controllability and uniformity to produce such semiconductor photocatalysts, including TiO 2, which is utilized in this study. To date, metal oxides have been heavily studied as antibacterial agents prepared via traditional chemical methods [16,17], and the preparation of TiO 2 and ZnO via ALD shows promise for the large-scale production of photocatalysts for drinking water treatment.…”

Section: Introductionmentioning

confidence: 99%

TiO2-Coated Meltblown Nonwoven Fabrics Prepared via Atomic Layer Deposition for the Inactivation of E. coli as a Model Photocatalytic Drinking Water Treatment System

Aragon,

Cárdenas Sánchez,

Zimeri

et al. 2024

Environments

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The controlled manufacturing of semiconductor photocatalysts is crucial to their development for drinking water treatment. In this study, TiO2-coated meltblown nonwoven fabrics prepared via Atomic Layer Deposition (ALD) are applied for the inactivation of Escherichia coli (E. coli). It is observed that in the presence of an ultraviolet light-emitting diode (UV-LED) light source (255 nm), 1.35 log E. coli inactivation is achieved. However, exposure to catalyst-coated fabrics in addition to the light source resulted in >4 log E. coli inactivation, suggesting a much higher rate of hydroxyl radical formation on the surface, leading to cell death.

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Structural refinement and antimicrobial activity of aluminum oxide nanoparticles

Cited by 10 publications

References 27 publications

A Mini Review of Antibacterial Properties of Al2O3 Nanoparticles

A Mini Review of Antibacterial Properties of Al2O3 Nanoparticles

Untitled

TiO2-Coated Meltblown Nonwoven Fabrics Prepared via Atomic Layer Deposition for the Inactivation of E. coli as a Model Photocatalytic Drinking Water Treatment System

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