Allamanda cathartica flower’s aqueous extract-mediated green synthesis of silver nanoparticles with excellent antioxidant and antibacterial potential for biomedical application

Karunakaran, Gopalu; Jagathambal, Matheswaran; Gusev, Alexander; Kolesnikov, Еvgeny; Mandal, Arup; Кузнецов, Денис

doi:10.1557/mrc.2016.2

Cited by 29 publications

(15 citation statements)

References 21 publications

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“…Meanwhile, the Ag/Ag 2 O spectra revealed a common peak in all the samples (1:30 P/Ag, 1:40 P/Ag, 1:50 P/Ag) situated at 430 nm. This peak corresponds to the characteristic surface plasmon resonance absorption band of Ag/Ag 2 O [56,57]. To date, several methods have been reported for Ag NPs and Ag2O NP synthesis [64].…”

Section: Uv-visible Spectroscopy and Bandgapmentioning

confidence: 99%

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

et al. 2021

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In this study, silver/silver oxide nanoparticles (Ag/Ag2O NPs) were successfully biosynthesized using Phoenix dactylifera L. aqueous leaves extract. The effect of different plant extract/precursor contractions (volume ratio, v/v%) on Ag/Ag2O NP formation, their optical properties, and photocatalytic activity towards azo dye degradation, i.e., Congo red (CR) and methylene blue (MB), were investigated. X-ray diffraction confirmed the crystalline nature of Ag/Ag2O NPs with a crystallite size range from 28 to 39 nm. Scanning electron microscope images showed that the Ag/Ag2O NPs have an oval and spherical shape. UV–vis spectroscopy showed that Ag/Ag2O NPs have a direct bandgap of 2.07–2.86 eV and an indirect bandgap of 1.60–1.76 eV. Fourier transform infrared analysis suggests that the synthesized Ag/Ag2O NPs might be stabilized through the interactions of -OH and C=O groups in the carbohydrates, flavonoids, tannins, and phenolic acids present in Phoenix dactylifera L. Interestingly, the prepared Ag/Ag2O NPs showed high catalytic degradation activity for CR dye. The photocatalytic degradation of the azo dye was monitored spectrophotometrically in a wavelength range of 250–900 nm, and a high decolorization efficiency (84.50%) was obtained after 50 min of reaction. As a result, the use of Phoenix dactylifera L. aqueous leaves extract offers a cost-effective and eco-friendly method.

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Section: Uv-visible Spectroscopy and Bandgapmentioning

confidence: 99%

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

et al. 2021

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“…Meanwhile the Ag/Ag2O spectra revealed on a common peak in all the samples (1/30, 1/40, 1/50) situated at 430 nm. This peak corresponds to the characteristic surface plasmon resonance absorption band of Ag/Ag2O [19][20][21] .…”

Section: 11uv-visible Spectroscopymentioning

confidence: 99%

Catalytic Activity for Dye Degradation and Characterization of Silver/Silver Oxide Nanoparticles Green Synthesized by Aqueous Leaves Extract of Phoenix Dactylifera L.

Laouini

Tedjani

2021

Preprint

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In this study, green synthesis of silver /silver oxide nanoparticles was successfully prepared from Phoenix Dactylifera L aqueous leaves extract. The effect of different volume ratio (% v/v) (Plant extract / Precursor) on the nanoparticles silver /silver oxide nanoparticles formation, optical properties, and catalytic activity for dye degradation was studied. The obtained Ag/Ag2O nanoparticles were characterized using various techniques, such as UV-Visible, FT-IR, XRD, SEM for this purpose. The UV-Vis spectrum shows the absorption at 430 nm associated with Ag/Ag2O NPs. The optical bandgap values were found to be in the range of 3.22 to 4.47 eV for the direct bandgap and 3.73 to 5.23 eV for the indirect bandgap. The functional groups present in plant extracts were studied by FTIR. XRD confirmed the crystalline nature of Ag / Ag2O NP, and its average particle size was between 28.66-39.40 nm. SEM showed that the green synthesized silver/silver oxide nanoparticles have a spherical shape. The purpose of this study, it highlights the high catalytic activity for dye degradation of Ag/Ag2O NPs green synthesized. As a result, the use of Phoenix Dactylifera L aqueous leaves extract offers a cost-effective and eco-friendly method.

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“…The result of the study showed significant antioxidant and antibacterial activity hence stating the presence of bioactive compounds. Further, flower extracts of Couroupita guianensis, Allamanda cathartica ( Karunakaran et al, 2016 ) mediated Ag-NPs have shown potential antioxidant activities. Jamdade et al (2019) reported that the novel Cu-NPs fabricated from Gnidia glauca and Plumbago zeylanica used as a promising antidiabetic agent; and have demonstrated that these particles are considered as a potential candidate in antidiabetic nanomedicine preparation.…”

Section: Applicationsmentioning

confidence: 99%

Biogenic fabrication of nanomaterials from flower-based chemical compounds, characterization and their various applications: A review

Bachheti

Fikadu

Bachheti³

et al. 2020

Saudi Journal of Biological Sciences

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Nanotechnology is evolving as a significant discipline of research with various applications. It includes the materials and their applications having one dimension in the range of 1–100 nm. Many chemical and physical protocol have been utilized for the nanoparticles (NPs) fabrication. These protocols are costly, hazardous and consumes high energy. Thus, researchers are inclined towards biological synthesis of NPs using plant and or herbal extract as these methods are simple, sustainable, ecofriendly and cost-effective. Flower is an important part of plants, and contained several phytochemicals such as flavonoids, terpenoids, coumarins, sterol and xanthones which acts as an important precursor for NPs synthesis. These compounds acted as reducing as well as stablishing agent during fabrication processes. They have been thoroughly characterized by various techniques. The fabricated NPs have shown potential antimicrobial activity against bacterial and fungal infections. They have been also used as potential therapeutic agent for human breast cancer, gastric adenocarcinoma cell, colorectal adenocarcinoma cell and pancreas ductal adenocarcinoma cells. Overall, the aim of this review article to facilitates the recent understanding of flower-mediated NPs fabrication (a sustainable and ecofriendly resource), their application in different disciplines and challenges.

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Allamanda cathartica flower’s aqueous extract-mediated green synthesis of silver nanoparticles with excellent antioxidant and antibacterial potential for biomedical application

Abstract: Abstract

Cited by 29 publications

References 21 publications

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

Green Synthesized of Ag/Ag2O Nanoparticles Using Aqueous Leaves Extracts of Phoenix dactylifera L. and Their Azo Dye Photodegradation

Catalytic Activity for Dye Degradation and Characterization of Silver/Silver Oxide Nanoparticles Green Synthesized by Aqueous Leaves Extract of Phoenix Dactylifera L.

Biogenic fabrication of nanomaterials from flower-based chemical compounds, characterization and their various applications: A review

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