Biofabricated Aluminium Oxide Nanoparticles Derived from Citrus aurantium L.: Antimicrobial, Anti-Proliferation, and Photocatalytic Efficiencies

Punitha Nagarajan, Vijayakumar Subramaniyan (), Vidhya Elavarasan, Nilavukkarasi Mohandoss, Prathipkumar Subramaniyan and Sekar Vijayakumar ()
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Punitha Nagarajan: PG and Research Department of Botany, A.V.V.M. Sri Pushpam College, Bharathidasan University, Tiruchirappalli 613503, Tamil Nadu, India
Vijayakumar Subramaniyan: PG and Research Department of Botany, A.V.V.M. Sri Pushpam College, Bharathidasan University, Tiruchirappalli 613503, Tamil Nadu, India
Vidhya Elavarasan: PG and Research Department of Botany, A.V.V.M. Sri Pushpam College, Bharathidasan University, Tiruchirappalli 613503, Tamil Nadu, India
Nilavukkarasi Mohandoss: PG and Research Department of Botany, A.V.V.M. Sri Pushpam College, Bharathidasan University, Tiruchirappalli 613503, Tamil Nadu, India
Prathipkumar Subramaniyan: National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India
Sekar Vijayakumar: Marine College, Shandong University, Weihai 264209, China

Sustainability, 2023, vol. 15, issue 2, 1-9

Abstract: A current strategy in material science and nanotechnology is the creation of green metal oxide nanoparticles. Citrus aurantium peel extract was used to create aluminium oxide nanoparticles (Al 2 O 3 NPs) in an efficient, affordable, environmentally friendly, and simple manner. Various characterisation methods such as UV-vis spectrophotometer (UV), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and field emission scanning electron microscopy (FE-SEM) were utilised to assess the morphology of Al 2 O 3 NPs. The elemental composition was performed by EDX analysis. Using the well diffusion method, Al 2 O 3 NPs’ antimicrobial properties were used against pathogenic organisms. The antiproliferation efficacy of a neuronal cell line was investigated using the MTT assay. The photocatalytic activities were studied against methylene blue dye. In this study, Al 2 O 3 NPs were found to have an average crystallite size of 28 nm in the XRD, an absorption peak at 322 nm in the UV spectrum, and functional groups from 406 to 432 in the FT-IR spectrum, which were ascribed to the stretching of aluminium oxide. Antimicrobial efficiencies were observed against Pseudomonas aeruginosa [36 ± 2.12], Staphylococcus aureus [35 ± 1.23], Staphylococcus epidermis [27 ± 0.06], Klebsiella pneumonia [25 ± 1.65], Candida albicans [28 ± 1.06], and Aspergillus niger [27 ± 2.23], as well as the cell proliferation of a PC 12 cell line (54.09 at 31.2 μg/mL). Furthermore, photocatalytic degradation of methylene blue dye decreased up to 89.1 percent after 150 min. The current investigation concluded that biosynthesised Al 2 O 3 NPs exhibit feasible antimicrobial, anti-proliferative, and photocatalytic behaviours.

Keywords: biofabrication; Citrus aurantium; antimicrobial activity; anti-proliferation; photocatalytic activity (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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