Synthesis of copper oxide nanoparticles (CuO-NPs) and its evaluation of antibacterial activity against P. aeruginosa biofilm gene’s

2019 ◽  
Author(s):  
Ziad T. Khodair ◽  
Mohanad W. Mahdi Alzubaidy ◽  
Asmaa M. Salih Almohaidi ◽  
Ammar Ahmed Sultan ◽  
Sana M. H. AL-Shimmary ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Cuo Nps

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.

scholarly journals Promising Antibacterial Effect of Copper Oxide Nanoparticles against Several Multidrug Resistant Uropathogens

2018 ◽  
Vol 24 (3) ◽  
pp. 213-218 ◽  
Author(s):  
Hadi Sedigh Ebrahim-Saraie ◽  
Hamid Heidari ◽  
Vahid Rezaei ◽  
Seyed Mohammad Javad Mortazavi ◽  
Mohammad Motamedifar
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Multidrug Resistant ◽  
Copper Oxide Nanoparticles ◽  
Diffusion Method ◽  
Multiple Drug ◽  
Oxide Nanoparticles ◽  
Cuo Nps ◽  
Conventional Antibiotics

Background: Recently, nanotechnology has been demonstrated to be a promising application to overcome the problem of antibiotic resistance. In the present study, we aimed to determine the antibacterial activity of copper oxide nanoparticles (CuO NPs) on several multiple-drug resistant (MDR) uropathogenic strains. Methods: This in vitro case-control study was performed on 4 uropathogenic bacteria including Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Pseudomonas aeruginosa. The antibacterial property was evaluated by well diffusion method at different concentrations of CuO NPs. Results: Overall, NPs concentration of 10, 25 and 50 µg/mL showed the remarkable antibacterial activity. A lower effect was seen against S. aureus strains. CuO NPs exhibited maximum bacterial growth inhibition against E. faecalis strains. In most of the cases, the zone of inhibition in 50 µg/mL concentration was closest to control positive antibiotics. Conclusion: In summary, CuO NPs as an alternative to conventional antibiotics that are currently used showed dose-dependent on antibacterial activity against different uropathogens, specificity towards pathogenic Gram-positive bacteria. This promising antibacterial activity of CuO NPs suggesting the development of NPs coatings on the different surface of biomedical materials for applications in different antimicrobial control systems.

scholarly journals Green copper oxide nanoparticles for lead, nickel, and cadmium removal from contaminated water

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alaa El Din Mahmoud ◽  
Khairia M. Al-Qahtani ◽  
Sahab O. Alflaij ◽  
Salma F. Al-Qahtani ◽  
Faten A. Alsamhan
Keyword(s):  
Experimental Data ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Bet Surface Area ◽  
Oxide Nanoparticles ◽  
Cadmium Removal ◽  
Cuo Nps ◽  
Pseudo Second Order ◽  
Isotherm And Kinetic Models ◽  
Lead Nickel

AbstractEnvironmentally friendly copper oxide nanoparticles (CuO NPs) were prepared with a green synthesis route without using hazardous chemicals. Hence, the extracts of mint leaves and orange peels were utilized as reducing agents to synthesize CuO NPs-1 and CuO NPs-2, respectively. The synthesized CuO NPs nanoparticles were characterized using scanning electron microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), BET surface area, Ultraviolet–Visible spectroscopy (UV–Vis), and Fourier Transform Infrared Spectroscopy (FT-IR). Various parameters of batch experiments were considered for the removal of Pb(II), Ni(II), and Cd(II) using the CuO NPs such as nanosorbent dose, contact time, pH, and initial metal concentration. The maximum uptake capacity (qm) of both CuO NPs-1 and CuO NPs-2 followed the order of Pb(II) > Ni(II) > Cd(II). The optimum qm of CuO NPs were 88.80, 54.90, and 15.60 mg g−1 for Pb(II), Ni(II), and Cd(II), respectively and occurred at sorbent dose of 0.33 g L−1 and pH of 6. Furthermore, isotherm and kinetic models were applied to fit the experimental data. Freundlich models (R2 > 0.97) and pseudo-second-order model (R2 > 0.96) were fitted well to the experimental data and the equilibrium of metal adsorption occurred within 60 min.

scholarly journals Green Synthesis of Copper Oxide Nanoparticles Using Protein Fractions from an Aqueous Extract of Brown Algae Macrocystis pyrifera

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 78
Author(s):  
Karla Araya-Castro ◽  
Tzu-Chiao Chao ◽  
Benjamín Durán-Vinet ◽  
Carla Cisternas ◽  
Gustavo Ciudad ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Copper Oxide ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Brown Algae ◽  
Copper Oxide Nanoparticles ◽  
Macrocystis Pyrifera ◽  
Protein Fractions ◽  
Oxide Nanoparticles ◽  
Cuo Nps

Amongst different living organisms studied as potential candidates for the green synthesis of copper nanoparticles, algal biomass is presented as a novel and easy-to-handle method. However, the role of specific biomolecules and their contribution as reductant and capping agents has not yet been described. This contribution reports a green synthesis method to obtain copper oxide nanoparticles (CuO-NPs) using separated protein fractions from an aqueous extract of brown algae Macrocystis pyrifera through size exclusion chromatography (HPLC-SEC). Proteins were detected by a UV/VIS diode array, time-based fraction collection was carried out, and each collected fraction was used to evaluate the synthesis of CuO-NPs. The characterization of CuO-NPs was evaluated by Dynamic Light Scattering (DLS), Z-potential, Fourier Transform Infrared (FTIR), Transmission Electron Microscope (TEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS) detector. Low Molecular Weight (LMW) and High Molecular Weight (HMW) protein fractions were able to synthesize spherical CuO-NPs. TEM images showed that the metallic core present in the observed samples ranged from 2 to 50 nm in diameter, with spherical nanostructures present in all containing protein samples. FTIR measurements showed functional groups from proteins having a pivotal role in the reduction and stabilization of the nanoparticles. The highly negative zeta potential average values from obtained nanoparticles suggest high stability, expanding the range of possible applications. This facile and novel protein-assisted method for the green synthesis of CuO-NPs may also provide a suitable tool to synthesize other nanoparticles that have different application areas.

scholarly journals Green Synthesis, Characterization and Antibacterial Activity of Copper Oxide Nanoparticles Using Annona muricata Stem Extract

2021 ◽  
Vol 9 (12) ◽  
pp. 1205-1214
Author(s):  
Shivani Kushwaha
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Sulphate ◽  
Copper Oxide Nanoparticles ◽  
Maximum Activity ◽  
Cuo Nanoparticles ◽  
Oxide Nanoparticles ◽  
Gradual Change ◽  
Annona Muricata ◽  
Stem Extract

Abstract: Nanotechnology is a rising field of science and technology that deals with the particles having size in the range of 1 to 100 nm. Copper oxide nanoparticles has many properties like antifungal activity, antibacterial activity, optical properties, conductive properties, etc. Due to its demand of diversified use, copper oxide nanoparticles were fabricated using ecofriendly and non-toxic Annona muricata stem extract. The extract with copper sulphate pentahydrate showed gradual change in the colour of the extract from brown to green which indicates the CuO nanoparticles synthesis. The fabrication is followed by characterization of CuO nanoparticles using UV-vis spectroscope, FTIR, XRD and SEM. The characterization showed roughly spherical shaped nanoparticles in the range of 100nm with high crystalline monoclinic phase. FTIR absorption spectra conclude that the compounds attached with copper oxide nanoparticles could be polyphenols with aromatic ring. The CuO nanoparticles exhibited antibacterial activity; it showed the maximum activity against E.coli (18 mm). Keywords: Annona muricata, copper sulphate pentahydrate, FTIR, nanomaterials, SEM, XRD.

Green synthesis of copper oxide nanoparticles and its effective applications in Biginelli reaction, BTB photodegradation and antibacterial activity

2018 ◽  
Vol 29 (12) ◽  
pp. 3315-3326 ◽  
Author(s):  
Shanmugam Prakash ◽  
Nagaraj Elavarasan ◽  
Alagesan Venkatesan ◽  
Kasivisvanathan Subashini ◽  
Murugesan Sowndharya ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Green Synthesis ◽  
Biginelli Reaction ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Synthesis, Characterization, and Antimicrobial Activity of Copper Oxide Nanoparticles

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Maqusood Ahamed ◽  
Hisham A. Alhadlaq ◽  
M. A. Majeed Khan ◽  
Ponmurugan Karuppiah ◽  
Naif A. Al-Dhabi
Keyword(s):  
Antimicrobial Activity ◽  
Electron Microscope ◽  
Copper Oxide ◽  
Field Emission ◽  
Copper Oxide Nanoparticles ◽  
Klebsiella Pneumonia ◽  
Oxide Nanoparticles ◽  
Xrd Pattern ◽  
X Ray ◽  
Cuo Nps

We studied the structural and antimicrobial properties of copper oxide nanoparticles (CuO NPs) synthesized by a very simple precipitation technique. Copper (II) acetate was used as a precursor and sodium hydroxide as a reducing agent. X-ray diffraction patter (XRD) pattern showed the crystalline nature of CuO NPs. Field emission scanning electron microscope (FESEM) and field emission transmission electron microscope (FETEM) demonstrated the morphology of CuO NPs. The average diameter of CuO NPs calculated by TEM and XRD was around 23 nm. Energy dispersive X-ray spectroscopy (EDS) spectrum and XRD pattern suggested that prepared CuO NPs were highly pure. CuO NPs showed excellent antimicrobial activity against various bacterial strains (Escherichia coli,Pseudomonas aeruginosa,Klebsiella pneumonia,Enterococcus faecalis,Shigella flexneri,Salmonella typhimurium,Proteus vulgaris,andStaphylococcus aureus). Moreover,E. coliandE. faecalisexhibited the highest sensitivity to CuO NPs whileK. pneumoniawas the least sensitive. Possible mechanisms of antimicrobial activity of CuO NPs should be further investigated.

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