scholarly journals Green-Synthesized Rice-Shaped Copper Oxide Nanoparticles Using Caesalpinia bonducella Seed Extract and Their Applications

ACS Omega ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 1040-1051 ◽  
Author(s):  
Saranya Sukumar ◽  
Agneeswaran Rudrasenan ◽  
Deepa Padmanabhan Nambiar
Keyword(s):  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Seed Extract ◽  
Oxide Nanoparticles ◽  
Caesalpinia Bonducella

scholarly journals Tunable electrochemistry and efficient antibacterial activity of plant-mediated copper oxide nanoparticles synthesized by Annona squamosa seed extract for agricultural utility

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 18050-18060
Author(s):  
Pooja Singh ◽  
Kshitij RB Singh ◽  
Jay Singh ◽  
Subha Narayan Das ◽  
Ravindra Pratap Singh
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Real Life ◽  
Copper Oxide Nanoparticles ◽  
Seed Extract ◽  
Oxide Nanoparticles ◽  
Label Free ◽  
Annona Squamosa ◽  
Label Free Detection ◽  
Nanoparticles Synthesis

This study reports plant mediated-copper oxide nanoparticles synthesis from Annona squamosa and their real-life application in agricultural domain for label-free detection of H2O2 and its antibacterial efficiency for combating rice crop pathogen.

scholarly journals Biofabrication of highly pure copper oxide nanoparticles using wheat seed extract and their catalytic activity: A mechanistic approach

2019 ◽  
Vol 8 (1) ◽  
pp. 691-702 ◽  
Author(s):  
Foad Buazar ◽  
Sajjad Sweidi ◽  
Mohammad Badri ◽  
Feisal Kroushawi
Keyword(s):  
Copper Oxide ◽  
Pure Copper ◽  
Catalytic Efficiency ◽  
Spherical Shape ◽  
Copper Oxide Nanoparticles ◽  
Seed Extract ◽  
Oxide Nanoparticles ◽  
Wheat Seed ◽  
Visible Absorption ◽  
X Ray

Abstract A facile novel green methodology is presented for the synthesis of highly stable and well-dispersed copper oxide nanoparticles using aqueous wheat seed extract. Under optimal reaction conditions, the wheat seed extract-derived electron-rich biomolecules were functioned as a reducing and capping/ stabilizing agent. The ultraviolet-visible absorption peak at 300 nm was confirmed the formation of copper oxide nanoparticles. Fourier-transform infrared spectroscopy analysis determined Cu–O bonds in nanosample, indicating the active role of functional groups in the wheat seed extract in bio-reduction of Cu cations. X-ray diffraction pattern results demonstrated the monoclinic structure of highly pure biosynthesized copper oxide nanoparticles with a crystallite size of 20.76 nm. The stability of copper oxide nanoparticles was confirmed after 3 months’ storage of product with no sedimentation or suspension. Transmission electron microscopy results showed the spherical shape of nano-particle with an average size of 22 ± 1.5 nm. X-ray photo-electron spectroscopy analyses revealed only copper and oxygen elements in the sample, confirming the purity of copper oxide nanoparticles. Bio-assisted copper oxide nanoparticles demonstrated significant catalytic efficiency and reusability toward 4-nitrophenol removal by an average of 97.6% from aqueous solutions after successive 5 days’ exposure to UV irradiation.

scholarly journals Facial Eco-Friendly Synthesis of Copper Oxide Nanoparticles Using Chia Seeds Extract and Evaluation of Its Electrochemical Activity

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 2027
Author(s):  
Noha Al-Qasmi
Keyword(s):  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Electrochemical Impedance ◽  
Analytical Techniques ◽  
Copper Oxide Nanoparticles ◽  
Seed Extract ◽  
Oxide Nanoparticles ◽  
X Ray ◽  
Cuo Nps ◽  
Chia Seed

In the current study, copper oxide nanoparticles (CuO NPs) were synthesized using chia seed extract in a simple, rapid, and eco-friendly manner for the first time. The synthesized CuO NPs were characterized using different analytical techniques. The images of field emission scanning electron microscopy revealed that the CuO NPs were triangular and pyramid in structure, with a mean particle size of 61.5 nm. The absorption peak of the synthesized CuO NPs was measured using ultraviolet-visible spectroscopy and was recorded at a wavelength of 291 nm. The results of energy-dispersive X-ray analysis confirmed that the CuO NPs synthesized using chia seed extract yielded high-purity CuO NPs. Moreover, the X-ray diffraction analysis indicated the highly crystalline nature of the CuO NPs, and the X-ray photoelectron spectroscopy results indicated that the CuO NPs were prepared successfully. Additionally, electrochemical impedance spectroscopy measurements revealed excellent electrocatalytic conductivity and fast electron transfer at the electrode/electrolyte interface of the synthesized CuO NP-modified glassy carbon electrode.

ANTIBIOTIC PROFILE AND ANTIBACTERIAL ACTIVITY OF COPPER OXIDE NANOPARTICLES AGAINST Pseudomonas fluorescens ISOLATED FROM WOUND INFECTION

2019 ◽  
Vol 9 (o3) ◽  
Author(s):  
Haider Qassim Raheem ◽  
Takwa S. Al-meamar ◽  
Anas M. Almamoori
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Pseudomonas Fluorescens ◽  
Wide Spectrum ◽  
Copper Oxide Nanoparticles ◽  
Morphological Properties ◽  
Clinical Samples ◽  
Oxide Nanoparticles ◽  
Cuo Nps ◽  
Disk Diffusion Assay

Fifty specimens were collected from wound patients who visited Al-Hilla Teaching Hospital. The samples were grown on Blood and MacConkey agar for 24-48 hr at 37oC. The bacterial isolates which achieved as a pure and predominant growth from clinical samples as Pseudomonas fluorescens, were identified using morphological properties and Vitek2 system. The anti-bacterial activity of copper oxide nanoparticles (CuO NPs) against was tested by (disk diffusion assay) using dilutions of (400, 200, 100, 50, 25, and 12.5‎µ‎g/ml). The (MIC and MBC) of each isolate was determined. CuO NPs shows wide spectrum antibacterial activity against tested bacteria with rise zone of inhibition diameter that is proportionate with the increase in nanoparticle concentration. The MIC of CuO NPs extended from 100-200‎µ‎g/ml and the MBC ranged from 200-400‎µ‎g/ml. The antibiotic profile was determined by Viteck 2 compact system (Biomérieux). CuO NPs‎ found highly effective and safe in P. fluorescens wounds infections comparing with used antibiotics.

Green synthesis of copper oxide nanoparticles using aloe vera extract

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Hemalatha D ◽  
Saraswath S
Keyword(s):  
Copper Oxide ◽  
Biomedical Application ◽  
Aloe Vera ◽  
Copper Oxide Nanoparticles ◽  
Klebsiella Pneumonia ◽  
Oxide Nanoparticles ◽  
Cupric Sulfate ◽  
X Ray Diffraction ◽  
Fouriertransform Infrared Spectroscopy ◽  
Effective Use

In material science, green method for synthesis of nanomaterials is feasible, cheaper and eco-friendly protocol. To accomplish this phenomenon, present study was aimed to synthesize Copper oxide nanoparticles using leaf extract of Aloevera with two different precursors CuCl2.2H2O (Cupric chloride) and CuSo4.5H2O (Cupric sulfate). The extraction of Aloevera is employed as reducing and stabilizing agent for this synthesis.Copper oxide Nanoparticles is effective use of biomedical application due to their antibacterial function. The synthesized Copper oxide nanoparticles were characterized by X-Ray Diffraction Spectroscopy (XRD), Energy Dispersive Spectroscopy (EDX), FourierTransform Infrared Spectroscopy (FT- IR) and Scanning Electron Microscope(SEM). XRD studies reveal the crystallographic nature of Copper oxide nanoparticles. Furthermore the Copper oxide nanoparticles have good Antibacterial activity against both gram negative (E.Coli, Klebsiella pneumonia) and gram positive (Bacillus cereus, Staphylococcus aureus)bacteria.

Green Synthesis of Copper Oxide Nanoparticles using Cucumis sativus (cucumber) Extracts and their Bio-physical and Biochemical Characterization for Cosmetic and Dermatologic Applications

2020 ◽  
Vol 20 ◽  
Author(s):  
Monika Vats ◽  
Shruti Bhardwaj ◽  
Arvind Chhabra
Keyword(s):  
Copper Oxide ◽  
Green Synthesis ◽  
Biochemical Characterization ◽  
Chemical Characterization ◽  
Ultra Violet ◽  
Skin Penetration ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Ultra Violet Radiation ◽  
Anti Fungal

Background & Objective: Nanoparticles are used in cosmetic and dermatologic products, due to better skin penetration properties. Incorporation of natural products exhibiting medicinal properties in nano-preparations could significantly improve efficacy of these products and improve the quality of life without the side effects of synthetic formulations. Methods: We here report green synthesis of Copper Oxide nanoparticles, using Cucumber extract, and their detailed biophysical and bio-chemical characterization. Results: These Copper Oxide-Cucumber nanoparticles exhibit significant anti-bacterial and anti-fungal properties, Ultra Violet-radiation protection ability and reactive-oxygen species inhibition properties. Importantly, these nanoparticles do not exhibit significant cellular toxicity and, when incorporated in skin cream, exhibit skin rejuvenating properties. Conclusion: Our findings have implications for nanoparticle-based cosmetics and dermatologic applications.

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