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- Title
Medicinal honeycomb ceria nanoparticles' fabrication by using green synthesis method.
- Authors
Khalid, Naila Batool; Sarwar, M.; Rakha, Allah; Khalid, Ahmad M.; Munawar, Anam; Riaz, Ahsan; Rehman, Rahat Abdul; Akhtar, Sareen
- Abstract
Here we are reporting the usage of Cassia Angustifolia leaves' extract as a reducing agent in the synthesis of ceria nanoparticles. The structural composition of nanomaterials thus prepared was investigated using UV–Vis Spectroscopy, FT-IR, XRD, SEM and EDX techniques. The SEM images revealed that the structure of these particles was like honeycomb, circular and cubic with smooth surfaces ranging from 50 to 100 nm in size. Further, the morphology and size analysis was endorsed by X-ray Diffraction Analysis. X-ray Diffraction analysis corresponds to cubic phase centered with lattice parameters of a = b = c = 0.5412 nm while the average size of ceria nanoparticles calculated by using the Debye-Sherrer equation presents 58.23 nm. The most important function of these nanoparticles is the determination of them in vitro antibacterial usage against Gram-Positive and -Negative microbe. It was found that these nanoparticles exhibited some antibacterial activity against all these microorganisms. For that, Cerium oxide nanoparticles were prepared and found to possess significant antibacterial activities when tested against the pathogenic bacteria viz. clinically isolated Gram-negative Escherichia coli and Gram-Positive Bacillus subtilis. With the increase in the concentration of nanoparticles, the inhibition zone also increased. The greatest value recorded for the zone of inhibition of Escherichia coli is 9 cm, of Pseudomonas aeuroginosa is 19 cm and of Staphylococcus aureus is 18 cm. The significance of the present study is that Cassia Angustifolia leaf extract was used for the synthesis of Cerium Oxide nanoparticles and confirmed their antimicrobial activity. Highlights: Cassia Angustifolia leaves' extract is used for the green synthesis of cerium oxide nanoparticles. The SEM images of cerium oxide nanoparticles predict the size range from 50 to 100 nm with a smooth surface. Morphology analysis designates that different morphologies exist there. Based on different morphologies, size varies. The synthesized cerium oxide nanoparticles have a medicinal effect against gram-positive and negative microbes. Nanotechnology is opening a new avenue in green and clean technology methods.
- Subjects
CERIUM oxides; HONEYCOMB structures; NANOPARTICLES; NANOPARTICLE size; SCANNING electron microscopy; LATTICE constants; PATHOGENIC bacteria
- Publication
Applied Nanoscience, 2022, Vol 12, Issue 10, p2933
- ISSN
2190-5509
- Publication type
Article
- DOI
10.1007/s13204-022-02575-7