Photo Catalytic, Antimicrobial and Antifungal Activity of Biogenic Iron Oxide Nanoparticles Synthesised Using Aegle marmelos Extracts

Sriramulu, Mohana; Balaji, .; Sumathi, S.

doi:10.1007/s10904-020-01812-2

Cited by 22 publications

(11 citation statements)

References 31 publications

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“…Moreover, these results agree with the Mössbauer data discussed below. XRD results of IONPs synthesized using Aegle marmelos and avocado fruit rind extracts, also showed formation of the iron oxide α-Fe 2 O 3 when calcinated at 400 o C. 16,17 Similarly, the diffractogram of IONPs from Sageretia thea extract showed the formation of pure and crystalline γ-Fe 2 O 3 after annealing at 500 °C. 18 The presence of phosphates in the samples can be attributed to the phosphorous element present in the black tea leaves, which upon thermal treatment formed the Fe III phosphates.…”

Section: Iron Nanomaterials Characterizationmentioning

confidence: 89%

“…For instance, IONPs prepared from Fe III and Aegle marmelos or avocado fruit rind extracts were thermally treated at 400 °C and the formation of α-Fe 2 O 3 were observed. 16,17 The reaction of Fe II with Sageretia thea extract led to the formation of highly crystalline and pure γ-Fe 2 O 3 phase after annealing at 500 °C. 18 Recently, we have reported the effect of thermal treatment in the range of 400 to 900 °C on the IONPs properties prepared from black tea extract.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Camellia sinensis Origin and Heat Treatment in the Iron Oxides Nanomaterials Composition and Fenton Degradation of Methyl Orange

Franco¹,

Silva²,

Licea³

et al. 2023

J. Braz. Chem. Soc.

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Sustainable and environmentally friendly methods for nanomaterials synthesis have been emerging recently. The use of extracts of polyphenol-rich plants with high reducing and chelating power is advantageous because the polyphenol can protect the nanomaterial from agglomeration and deactivation. Green nanomaterials have been applied in several areas, including remediation of toxic organic pollutants from contaminated effluents. Herein, we describe the preparation of green iron oxide nanoparticles (IONPs) with extracts of the plant Camellia sinensis as black tea for dye removal application. The as-prepared IONPs were composed of amorphous FeOOH and FeII/III-polyphenol complexes. To obtain crystalline and pure iron-based nanomaterials, the amorphous precursor was annealed at 900 ºC. Samples of black tea from different regions were used to verify the reproducibility of the iron phases formed. The same iron phases were obtained for all black tea samples, α-Fe2O3 (hematite), FePO4, and Fe3PO7, but in different proportions. The materials were applied as heterogeneous-Fenton catalysts for the removal of the dye methyl orange. The amorphous as-prepared IONPs were more active than the respective annealed IONPs due to the proton release from the polyphenol into the reaction medium, setting the pH to around 3, which is the optimum pH for the Fenton system.

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Section: Iron Nanomaterials Characterizationmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Camellia sinensis Origin and Heat Treatment in the Iron Oxides Nanomaterials Composition and Fenton Degradation of Methyl Orange

Franco¹,

Silva²,

Licea³

et al. 2023

J. Braz. Chem. Soc.

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“…the biogenic synthesized Fe 2 O 3 NPs via Skimmia laureola leaf extract significantly reduced disease severity caused by Ralstonia solanacearum in the treated root with 6 % w/v of Fe 2 O 3 NPs. In addition to the antibacterial effect of Fe-based NPs, results by Sriramulu and Sumathi unveiled [109] antifungal effects of Fe-based NPs against plant pathogenic fungi. Silver NPs (AgNPs) however have evinced to be highly promising and have efficient antimicrobial effects against viruses and bacteria.…”

Section: Nanomaterials For Application In Pesticidesmentioning

confidence: 99%

Nanomaterials as Nanofertilizers and Nanopesticides: An Overview

Okey-Onyesolu

Hassanisaadi²,

Bilal

et al. 2021

ChemistrySelect

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Nanotechnology has acquired increasing interest recently in agriculture and crop production for achieving proficient utilization of resources by developing nanodelivery systems for agrochemical products or sensors (for nutrient status or water). The development of new nanofertilizers provides a promising opportunity to improve plant mineral nutrition. According to the reports, nanostructured materials are more efficient than traditional fertilizers, with a site-specific and controlled release of nutrients that not only increased the efficacy of plant uptake but also reduced negative environmental effects due to the loss of nutrients into the environmental matrices. In this section, we illustrate various kinds of novel nanostructured materials as promising carriers for nutrients such as nanoclays, carbon nanodots, carbon nanotubes, and nanofibers, hydroxyapatite nanoparticles, carbon-based nanomaterials, and polymeric nanoparticles. Also, the impact of nanomaterials on pesticides is discussed. They play a great contribution to enhancing agricultural productivity involving for gradual release and proper pesticide dosage to aid pest control. Different nanomaterials used are discussed contributing to the reduction of the exposure of humans to pesticides.

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“…Unripe bael fruits are bitter, astringent, and haveanti-laxative properties, improve digestion and treat diarrhea. Ripe fruits are sweet, aromatic, and astringent with laxative properties 3,4 . Aegle marmelos are known by various names in different Indian languages, some listed in Table 2.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

IJPSR

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Introduction:The seeds of Aegle marmelos (bael) are less explored for their therapeutic activity; cytotoxic activity of bael seeds was yet to be studied. The present study aims at finding the cytotoxic activity of the successive extracts and the flavonoid fraction from the methanolic extract of the seeds. Methods: The extracts were prepared using solvents (petroleum ether, chloroform, ethyl acetate, methanol, and water) in increasing order of their polarity. Anti-oxidant activity of the extracts was evaluated using DPPH radical scavenging assay, nitric oxide scavenging assay, and hydrogen peroxide scavenging assay. Flavonoid fractions were obtained by thin-layer chromatography of the flavonoid-rich fraction prepared from the total methanolic extract. Human colon cancer cell line (HT 29), human breast cancer cell line (MCF-7), human lung cancer cell line (A-549) were used to evaluate the cytotoxicity of the extracts and the flavonoid fractions. Results: Various phytochemicals like alkaloids, flavonoids, tannins and phenols, steroids, and saponins were detected in phytochemical investigation of the extract. Ethyl acetate fraction showed comparable DPPH radical scavenging activity and hydrogen peroxide scavenging activity with ascorbic acid (standard). Methanol extract showed good nitric oxide scavenging activity of all the extracts. Flavonoid fraction F-01 showed 50% cell growth inhibition at concentration <10 μg/ml on the human breast cancer cell line (MCF-7), which indicates its potent activity. Conclusion: F-01, one of the flavonoid fractions, showed comparable activity with the standard (Adriamycin) on MCF-7 cell line. Anti-oxidant study was conducted for the extracts, and the extracts showed good activity comparable to the standards used.

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Photo Catalytic, Antimicrobial and Antifungal Activity of Biogenic Iron Oxide Nanoparticles Synthesised Using Aegle marmelos Extracts

Cited by 22 publications

References 31 publications

Effect of Camellia sinensis Origin and Heat Treatment in the Iron Oxides Nanomaterials Composition and Fenton Degradation of Methyl Orange

Effect of Camellia sinensis Origin and Heat Treatment in the Iron Oxides Nanomaterials Composition and Fenton Degradation of Methyl Orange

Nanomaterials as Nanofertilizers and Nanopesticides: An Overview

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