Green synthesis of zinc oxide nanoparticles using extract of  Averrhoa bilimbi(L)  and their photoelectrode applications

Ramanarayanan, Rajita; Bhabhina, N.M.; Dharsana, M.V.; Nivedita, C.V.; Sindhu, S.

doi:10.1016/j.matpr.2018.05.150

Cited by 19 publications

(6 citation statements)

References 8 publications

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“…It is believed that Zn 2+ precipitated as Zn(OH) 2 , and then converted to ZnO after heating. This contrasts the claims of other studies, which stated that plant extracts reduce Zn 2+ to elemental Zn (Jamdagni et al, 2018;Ramanarayanan et al, 2018). The compounds present in the plant extracts may serve as capping agents to control the growth and aggregation of nanoparticles (Mittal et al, 2017).…”

Section: Biosynthesis Of Zinc Oxide Nanoparticles (Znonps)contrasting

confidence: 58%

Synthesis of ZnO nanoparticles using Theobroma cacao L. pod husks, and their antibacterial activities against foodborne pathogens

Sarillana¹,

Fundador²,

Fundador³

2021

IFRJ

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Zinc oxide nanoparticles (ZnONPs) with antimicrobial properties have potential applications in the food industry. In the present work, the biosynthesis of ZnONPs was carried out using Theobroma cacao L. pod husk extract. UV-Vis spectroscopy confirmed NP formation by the presence of a peak in the range of 390 - 360 nm. Different parameters affecting the biosynthesis were assessed. A temperature of 28°C and pH of 7 were the best conditions for the formation of small-sized NPs. The antibacterial activity of ZnONPs was evaluated using the resazurin microtiter assay. The minimum inhibitory concentrations of ZnONPs for Escherichia coli and Staphylococcus aureus were 6.25 and 12.5 μg/mL, respectively. ZnONPs were more potent than chloramphenicol, suggesting that they are effective against chloramphenicol-resistant bacteria. Based on scanning electron microscopy and transmission electron microscopy, the ZnONPs were irregular in shape, with an average size of 81 nm. The results of the present work provide a simple, cost-effective, and eco-friendly method for the large-scale production of ZnONPs. Moreover, the study highlights the potential of ZnONPs as an antimicrobial agent that can be applied to food packaging systems, textiles, and medical devices.

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Section: Biosynthesis Of Zinc Oxide Nanoparticles (Znonps)contrasting

confidence: 58%

Synthesis of ZnO nanoparticles using Theobroma cacao L. pod husks, and their antibacterial activities against foodborne pathogens

Sarillana¹,

Fundador²,

Fundador³

2021

IFRJ

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“…In this preparation, fruit extract was used as a capping and reducing agent. The formation of nanoparticles was confirmed with the help of UVspectroscopy and X-ray diffraction techniques while size and shape were confirmed with electron microscopy [65] .…”

Section: Zinc Oxide Nanoparticlesmentioning

confidence: 95%

Phytochemical, Biological and Traditional Claims on Averrhoa bilimbi: An Overview

Garg¹,

Chaudhary²,

Kumari³

et al. 2022

IJPS

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Garg et al.: Recent updates on Averrhoa bilimbi: An approachAverrhoa bilimbi is primarily utilized in traditional medicine to cure blood pressure, high levels of sugar in the blood and many infectious diseases. The key objective of the current review is to assemble and establish literature based on traditional claims and relate those with up-to-date pharmacological results on the use of Averrhoa bilimbi for managing diverse diseases. Literature was collected, systematically assessed, understood and discoursed from the various scientific databases as Scopus, PubMed and ScienceDirect by using keyword Averrhoa bilimbi. Various biological activities have confirmed the potential of Averrhoa bilimbi to act as antioxidant, antimicrobial, antidiabetic, hypotensive, anti-inflammatory and hepatoprotective which indicates the excessive worth of plant holds as complementary and alternative medicine. Consequently, it is aimed to compile a current and complete review of Averrhoa bilimbi which offsets its traditional uses as medicine, phytochemistry and biological effects.

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“…Stretching peak 1048 cm -1 appears due to the stretching frequency of C-O vibration. The peaks at 550 cm -1 and 500 cm -1 correspond to the stretching vibration of Metal-Oxygen (Zn-O) [34][35][36].…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

Leonotis Nepetifolia Mediated Eco-Friendly Synthesis of Zno Nps: Photocatalytic, Antioxidant Activities and Their Applications to Nano-Composite Electrode Material for Supercapacitor

Pavithra

Santhakumar

2021

Preprint

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The present paper describes the green synthesis of Zinc oxide nanoparticles (ZnO NPs) from the flowers of L. nepetifolia. The synthesis of ZnO nanoparticles and examined by using Ultraviolet-visible spectroscopy, Fourier Transform-Infrared spectroscopy, X-ray Diffraction analysis, Dynamic Light Scattering analysis, Raman spectroscopy, Scanning Electron Microscopy and Energy Dispersive X-ray spectroscopy, Transmission Electron Microscopy, and Thermogravimetric Analysis. The photocatalytic studies were followed using methylene blue (MB) dye by ZnO nanoparticles by using sunlight as a source. The degradation of MB dye is found to be 90 %. Then the synthesized ZnO nanoparticles help to evaluate the antioxidant activities. The antioxidant activities of ZnO nanoparticles were exhibiting through scavenging of Nitric oxide, Hydrogen peroxide, and DPPH free radicals. Furthermore, the electrochemical analysis of reduced Graphene Oxide-Zinc oxide (rGO-ZnO) nanocomposite shows that the prepared rGO-ZnO nanocomposite has a high specific capacitance of about 667 F g-1 in comparison with the pure Zinc oxide nanoparticles (200 F g-1) and has good cycling stability of around 1000 cycles. The synthesis of multifunctional ZnO nanoparticles by using natural plant products like seeds, leaves, flowers, etc may help to explore as environment-friendly which is opposite to chemical synthesis.

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Green synthesis of zinc oxide nanoparticles using extract of Averrhoa bilimbi(L) and their photoelectrode applications

Cited by 19 publications

References 8 publications

Synthesis of ZnO nanoparticles using Theobroma cacao L. pod husks, and their antibacterial activities against foodborne pathogens

Synthesis of ZnO nanoparticles using Theobroma cacao L. pod husks, and their antibacterial activities against foodborne pathogens

Phytochemical, Biological and Traditional Claims on Averrhoa bilimbi: An Overview

Leonotis Nepetifolia Mediated Eco-Friendly Synthesis of Zno Nps: Photocatalytic, Antioxidant Activities and Their Applications to Nano-Composite Electrode Material for Supercapacitor

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