Green Synthesis of Zinc Oxide Nanoparticles using  Neem (Azadirachta Indica) and Tulasi (Ocimum Tenuiflorum)              Leaf Extract and their Characterization

Ajayan, Amrutha S.; Hebsur, N. S.

doi:10.20546/ijcmas.2020.902.035

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…ZnO NPs derived from an orange fruit peel extract exhibited a spherical-like morphology (30–40 nm in size) ( Thi et al, 2020 ). Neem ( Azadirachta indica ) and tulsi ( Ocimum tenuiflorum ) extracts yielded oval-shaped ZnO NPs with sizes of 100 nm and 122 nm, respectively ( Ajayan and Hebsur, 2020 ). A mangrove leaf extract was used to synthesize spherical ZnO NPs with a size of ∼30 nm ( Al-Mur, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Zaater,

Serhoud,

Ben Amor

et al. 2024

Front. Chem.

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Ephedra alata leaf extracts have therapeutic properties and contain various natural compounds known as phytochemicals. This study assessed the phytochemical content and antioxidant effects of a Ephedra alata leaf extract, as well as zinc oxide (ZnO) nanoparticle production. The extract contained phenolic acids, including vanillic acid, chlorogenic acid, gallic acid, p-coumaric acid, vanillin and rutin. Its total phenolic content and total flavonoid content were 48.7 ± 0.9 mg.g-1 and 1.7 ± 0.4 mg.g-1, respectively. The extract displayed a DPPH inhibition rate of 70.5%, total antioxidant activity of 49.5 ± 3.4 mg.g-1, and significant antimicrobial activity toward Gram-positive and negative bacteria. The synthesized ZnO nanoparticles had spherical shape, crystallite size of 25 nm, particle size between 5 and 30 nm, and bandgap energy of 3.3 eV. In specific conditions (90 min contact time, pH 7, and 25°C), these nanoparticles efficiently photodegraded 87% of methylene blue, suggesting potential applications for sustainable water treatment and pollution control.

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Section: Introductionmentioning

confidence: 99%

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Zaater,

Serhoud,

Ben Amor

et al. 2024

Front. Chem.

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“…The phenolic compounds served as a good reducing agent to reduce metal ions for the green synthesis of nanoparticles and had a stronger antioxidant capacity than other types of phytochemicals. C. sinensis have more consisted of proteins, lipids, and amino acids which is the influence to nanoparticle growth and reduced agglomeration [23].…”

Section: Introductionmentioning

confidence: 99%

In vitro antioxidant and acetylcholinesterase activities of catechin-loaded green fabricated zinc oxide nanoparticles

Baskaran¹,

Subash²

2023

J App Biol Biotech

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Catechin is an antioxidant, secondary metabolite found in Camellia sinensis that has unique qualities such as antioxidant activity, acetylcholinesterase activity, and neuroprotective benefit. In addition to having poor biological efficacy due to low stability, nanotechnology can enhance or improve stability. The aim of this study is to synthesize catechincoated zinc oxide nanoparticles (CAT-ZnONPs) using C. sinensis leaf extract by the nanoprecipitation method and investigate their in vitro antioxidant and acetylcholinesterase activities. The ultraviolet-visible spectrophotometer and the Fourier transform infrared spectrophotometer were used to characterize the CAT-ZnONPs; the particle had a consistent distribution and no agglomeration of nanoparticles was observed using field emission-scanning electron microscopy. Based on X-ray diffraction (XRD) analysis, the average size of CAT-ZnONPs is between 50 and 60 nm, as measured using the intensity of XRD. In vitro, the antioxidant activity of CAT-ZnONPs using the DPPH technique showed 50% scavenging at a dosage of 35 µg/mL. In vitro acetylcholinesterase inhibition activity of CAT-ZnONPs with a IC 50 concentration of 1.25 µg/mL was demonstrated. Thus, the obtained results revealed the first study to demonstrate CAT-ZnONPs as a therapeutic agent, which could be a promising drug delivery system and provide a novel process for curative intervention in neurological disorders in future research.

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Wheat leaf rust control through biofabricated zinc oxide nanoparticles

Badar,

Ahmed,

Munazir

et al. 2023

Australasian Plant Pathol.

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Green Synthesis of Zinc Oxide Nanoparticles using Neem (Azadirachta Indica) and Tulasi (Ocimum Tenuiflorum) Leaf Extract and their Characterization

Cited by 5 publications

References 4 publications

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue

In vitro antioxidant and acetylcholinesterase activities of catechin-loaded green fabricated zinc oxide nanoparticles

Wheat leaf rust control through biofabricated zinc oxide nanoparticles

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