scholarly journals Synthesis and Characterization of CuO Nanoparticles and CuO/PVA-PVP Nanocomposites: Adsorption Activity for Malachite Green (MG) Dye and Antibacterial Property in Wastewater Treatment

2021 ◽  
Author(s):  
Nikita Ghosh ◽  
Subhadeep Sen ◽  
Goutam Biswas ◽  
L. Robindro Singh ◽  
Prabir Kumar Haldar
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Malachite Green ◽  
Copper Oxide Nanoparticles ◽  
Batch Adsorption ◽  
Oxide Nanoparticles ◽  
Order Kinetic ◽  
Adsorption Method ◽  
Experimental Conditions ◽  
Adsorption Activity

Abstract Contaminated waterways, particularly effluent from the dye industry, are one of the major issues today. Among various methods adsorption being the most straight forward, low-cost, effective, and successful to treat such effluents. For this purpose, Copper oxide nanoparticles (CuO) and Copper oxide nanoparticles embedded within Polyvinyl alcohol (PVA) and Polyvinyl pyrrolidone (PVP) mixed polymer (CuO/PVA-PVP) were synthesized using precipitation methods and different analytical techniques such as dynamic light scattering (DLS), powdered X-ray diffraction (XRD), fourier-transform infrared (FTIR) spectroscopy and transmission electron microscopy (TEM) were used to characterize morphology and size. Synthesized nanomaterials were used for the adsorption of malachite green (MG) dye in aqueous solution by the batch adsorption method. Various experimental conditions e.g., contact time, concentrations, pH, were optimized to obtain best adsorption outcome. Adsorption kinetics and isotherm suggested that it follows Pseudo-second-order-kinetic and Freundlich isotherm. The invitro antibacterial activity was investigated using disk diffusion and minimum inhibitory concentration (MIC) test against Staphylococcus aureus (S.aureus), a gram positive and Escherichia coli (E.coli), a gram negative bacteria, where both the synthesized nanoparticles showed a decent antibacterial activity against both the bacterial strain.

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.

Sonocatalytic Degradation of Malachite Green Dye Using Green Synthesized Copper Oxide Nanoparticles

2021 ◽  
Author(s):  
Ashok Kumar S ◽  
Ahmed Al Otaibi ◽  
Stephen Inbanathan ◽  
Salma Ahmed Al-Zahrani ◽  
Sesha Srinivasan ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Malachite Green ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Malachite Green Dye

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

Biological Synthesis, Characterization and Antibacterial Activity of Novel Copper Oxide Nanoparticles (CuONPs)

2018 ◽  
Vol 12 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Mahesh Midatharahalli Chikkanna ◽  
Shivayogeeswar Neelagund ◽  
Murigendra B. Hiremath
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Biological Synthesis ◽  
Oxide Nanoparticles

Copper Oxide Nanoparticles: Synthesis, Characterization and Their Antibacterial Activity

2011 ◽  
Vol 22 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Sunita Jadhav ◽  
Suresh Gaikwad ◽  
Madhav Nimse ◽  
Anjali Rajbhoj
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Nanoparticles Synthesis

Predicting the characteristics of copper oxide nanoparticles using Nyctanthes arbor-tristis flower extract via antibacterial study

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Jothi M ◽  
Aparna Dhevi S
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Morphological Characteristics ◽  
Copper Oxide Nanoparticles ◽  
Nano Particles ◽  
Diffusion Method ◽  
Oxide Nanoparticles ◽  
Average Crystalline Size ◽  
X Rays ◽  
Monoclinic Crystal

Copper oxide (CuO) is an inorganic compound with monoclinic crystal structure. CuO nano particles attracted considerable attention due to its numerous applications in the field of optical, catalytic, mechanical, organic dye degeneration, biomedicine, pharmaceutics,cosmetics and different medical purposes. In the present study, copper oxide nanoparticles have been prepared by biological method using the flower extracts of Nyctanthes arbortristis as a reducing agent. The resulting samples were characterized using X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive analysis of X-rays (EDX), UV-Visible Spectroscopy (UV) and Antibacterial activity. From XRD studies, the average crystalline size of the obtained sample was calculated by Debye-Scherrer formula and it was found to be 33.13 nm. The band gap energy of the synthesized nano particle was estimated from UV studies and its value is 1.19 eV. The morphological characteristics were absorbed by SEM studies. The EDX and FTIR studies confirm the presence of Copper Oxide nano particles.The antibacterial activity of CuO-nano particles on selected bacteria was done using agar diffusion method.

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