Eco-friendly Green Synthesis and Characterization of Silver Nanoparticles Derived from Murraya koenigii Leaves Extract

Ashtaputrey, S.D.; Ashtaputrey, P.D.; Rathod, Gunjan

doi:10.14233/ajchem.2017.20680

Cited by 17 publications

(16 citation statements)

References 12 publications

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“…The copper nanoparticles formation is usually con rmed by UV-Vis spectroscopy studies of colored solution [18]. The concept of obtaining the peak in the UV-Vis spectrum is that, on the surface of metal nanoparticles the free electrons will be present which undergoes strong repulsion with the light of speci c wavelength [19]. Higher the conversion of copper sulphate solution to copper nanoparticles, higher will be the absorbance which corresponds to higher concentration of copper nanoparticles [20].…”

Section: Ultraviolet Visible Spectrophotometermentioning

confidence: 99%

Fabrication and Characterization of Copper Nanoparticles by Green Synthesis Approach Using Plectranthus Amboinicus Leaves Extract

Parthasarathy

Jayacumar

Chakraborty

et al. 2020

Preprint

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The field of nanotechnology is gaining interest among the researchers towards the eco-friendly way of synthesis of nanoparticles. In this project, green synthesis technique was employed to induce the synthesis of copper nanoparticles using Plectranthus amboinicus, i.e. Mexican mint, identified as Coleus amboinicus leaf extract. We report an eco-friendly synthesis of copper nanoparticle using Plectranthus amboinicus leaf extract, which is a simple and an ostentatiously rapid method which produces stable nanoparticles. The copper sulphate solution was naturally employed as a precursor for synthesizing the copper nanoparticles. The extract of the plant Plectranthus amboinicus was found to showcase excellent reducing and stabilizing properties. By using Ultraviolet-Visible spectroscopy, Zeta Potential, and X-Ray Diffraction (XRD) studies, it was confirmed that copper nanoparticles have been synthesized. The UV-Spectrometer analysis shows the characteristic peak indicating the synthesis of copper nanoparticles. The pattern of XRD analysis showed particle size of 16 - 25 nm and it reveals high crystallinity of the copper nanoparticles. Zeta potential was done to find the charge of the nanoparticles and size distribution which showed to have significant stability. This method proves to be cost-effective, can be performed at ease, and it’s also free of pollutants.

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Section: Ultraviolet Visible Spectrophotometermentioning

confidence: 99%

Fabrication and Characterization of Copper Nanoparticles by Green Synthesis Approach Using Plectranthus Amboinicus Leaves Extract

Parthasarathy

Jayacumar

Chakraborty

et al. 2020

Preprint

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“…Among the different nanoparticles present, copper nanoparticles (CuNPs) are mostly used as they are simple to produce by reducing copper ions that are present in the aqueous solution of copper sulphate. Further it has various other uses like an antibiotic and an antifungal agent and thus showing antimicrobial activity in treating wounds [1]. Nanoparticles are the particles with size ranging from 1 nm to 100 nm providing solutions to environmental and technological challenges and applied in almost all the fields.…”

Section: Introductionmentioning

confidence: 99%

Free Radical Scavenging Activity of Copper Nanoparticles Synthesized from Dried Ginger

Devi

Jeevitha

Preetha

et al. 2020

JPRI

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Nano science is considered to be an important area in research in which developing nontoxic, reliable and ecofriendly synthesis of nanoparticles by the green approach has a vital part. Nanoparticles that contain antimicrobial and antioxidant properties are considered to be a new trend for developing therapeutic agents that help in killing drug resistant pathogenic microorganisms. The present study is focused on discovering the antioxidant properties of copper nanoparticles synthesized from dried ginger. Dried ginger is a traditional medicine used widely and has shown to possess good antioxidant and antimicrobial properties. The phytochemical compounds of dried ginger can act as a reducing agent to synthesize copper nanoparticles. Copper nanoparticles were preferred for this study as it has unique physical and chemical properties. There are various methods used to synthesize nanoparticles and here in this study we have used the green synthesis method for synthesizing the copper nanoparticles. The copper nanoparticles were characterized by UV-vis spectroscopy and its antioxidant property was evaluated by DPPH assay.

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“…The absorption band at 1420 cm -1 and 1265 cm -1 corresponds to a vinyl C-H inplane bend and a phenolic C-O stretch respectively. The observed peaks at observed at 880 cm -1 and 779 cm -1 corresponds a 1,3disubstition associated with C-Cl stretch of halo compounds [60]. Thus, the formulated 2,4-D-CuCtsNPs retained it chemical composition and that of the CuCtsNPs.…”

Section: Fourier Transforms Infrared Spectrophotometric Analysismentioning

confidence: 76%

“…To prepared 250 mg/L, 250 mg of 2,4-D (analytical grade) was dissolved in a beaker, transferred into a 1000 mL volumetric flask and was made to mark with distilled water. Six point serial dilutions(20, 40,60, 80, 100 and 120 ppm) of the herbicide were prepared from its stock solutions as working standards. Absorption readings for 2,4-D were scanned from 215-325 nm to obtain the absorbance maximum at 300 nm and a standard calibration curve was obtained by plotting concentration verses absorbance, as shown inFigure 1.…”

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confidence: 99%

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Wuana

Nnamonu

et al. 2020

Asian J. Nanosci. Mater.

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This study used chitosan as a capping agent and L-ascorbic acid as reducing agent to prepare copper nanoparticles encapsulated with 2,4-D dimethylamine herbicide via a green chemical reduction method to improve its herbicidal activity and reduce the negative environmental impacts associated with its application. Characterization of the synthesized CuCtsNPs and 2,4-D-CuCtsNPs was carried out using the following techniques; transmission electron microscopy (TEM), fourier transform-infra-red (FT-IR), scanning electron microscopy (SEM), energy-dispersive x-ray (EDX), powder x-ray diffraction (PXRD), differential scanning calorimeter (DSC), thermogravimetric and differential thermal analysis (TGA/DTA). The maximum absorption peak of CuCtsNPs was observed around 560 nm while that of 2,4-D-CuCtsNPs at 558 nm. The yield of CuCtsNPs was at the range of 40-92% and encapsulation efficiency of the 2,4-D-CuCtsNPs formulationwas 93%. Debye-Scherer's equation was used to calculate the average crystalline size of the synthesized CuCtsNPs and 2,4-D-CuCtsNPs. The values were 38.78 nm (CuCtsNPs) and 54.93 nm (2,4-D-CuCtsNPs) respectively. The SEM images revealed the particle size of 21-56 nm for CuCtsNPs and 25-69 nm for 2,4-D-CuCtsNPs. The results obtained from the DSC and TGA curves of CuCtsNPs and 2,4-D-CuCtsNPs showed that the formulations exist in crystalline state and were thermally stable up to 401.73 °C. Aqueous release studies for the formulation were carried out in three different pH media and two agricultural soils. Leaching profile of the loaded CuCtsNPs through the soil layer (UAM and CAPS) demonstrated that the UAM soil had higher value for 2,4-D (58.67%) than in CAPS soil 40.78%. This study formulated an environmentally friendly herbicide delivery nano-matrix (CuCtsNPs) for the successful slow release of 2,4-D Dimethylamine herbicide in aqueous medium and agricultural soils.

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Eco-friendly Green Synthesis and Characterization of Silver Nanoparticles Derived from Murraya koenigii Leaves Extract

Cited by 17 publications

References 12 publications

Fabrication and Characterization of Copper Nanoparticles by Green Synthesis Approach Using Plectranthus Amboinicus Leaves Extract

Fabrication and Characterization of Copper Nanoparticles by Green Synthesis Approach Using Plectranthus Amboinicus Leaves Extract

Free Radical Scavenging Activity of Copper Nanoparticles Synthesized from Dried Ginger

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