scholarly journals Effect of Incubation Time, CuSO4 and Glucose Concentrations on Biosynthesis of Copper Oxide (CuO) Nanoparticles with Rectangular Shape and Antibacterial Activity: Taguchi Method Approach

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Maryam Rad ◽  
Mojtaba Taran ◽  
Mehran Alavi
Keyword(s):  
Antibacterial Activity ◽  
Taguchi Method ◽  
Copper Oxide ◽  
Incubation Time ◽  
Cuo Nanoparticles ◽  
Rectangular Shape ◽  
Method Approach

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.

Preparation of Copper Oxide (CuO) Nanoparticles and their Bactericidal Activity

2012 ◽  
pp. 326-332
Author(s):  
F. M. Al-Marzouki ◽  
O. A. Al-Hartomy ◽  
M. A. Shah
Keyword(s):  
Particle Size ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Copper Oxide ◽  
Bactericidal Activity ◽  
Copper Powder ◽  
Low Temperatures ◽  
Cost Effective ◽  
Cuo Nanoparticles ◽  
Uniform Particle Size

Single crystalline nanoparticles of copper oxide (CuO) having almost uniform particle size of ~40±10nm have been synthesized by a facile and versatile route. The technique employed is free from toxic solvents, organics, and amines, and is based on a simple reaction of copper powder and de-ionized water (DI) at very low temperatures of 180oC. The morphology, chemical composition, and crystalline structure of the nanoparticles were carefully investigated by the various characterization techniques. Besides simplicity, the advantages of producing nanoparticles by this method are that it is easeful, flexible, fast, cost effective, and pollution free. The synthesized nanoparticles are under investigations for various applications including their antibacterial activity.

Preparation of Copper Oxide (CuO) Nanoparticles and their Bactericidal Activity

2011 ◽  
Vol 1 (4) ◽  
pp. 58-64
Author(s):  
F. M. Al-Marzouki ◽  
O. A. Al-Hartomy ◽  
M. A. Shah
Keyword(s):  
Particle Size ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Copper Oxide ◽  
Bactericidal Activity ◽  
Copper Powder ◽  
Low Temperatures ◽  
Cost Effective ◽  
Cuo Nanoparticles ◽  
Uniform Particle Size

Single crystalline nanoparticles of copper oxide (CuO) having almost uniform particle size of ~40±10nm have been synthesized by a facile and versatile route. The technique employed is free from toxic solvents, organics, and amines, and is based on a simple reaction of copper powder and de-ionized water (DI) at very low temperatures of 180oC. The morphology, chemical composition, and crystalline structure of the nanoparticles were carefully investigated by the various characterization techniques. Besides simplicity, the advantages of producing nanoparticles by this method are that it is easeful, flexible, fast, cost effective, and pollution free. The synthesized nanoparticles are under investigations for various applications including their antibacterial activity.

scholarly journals CuO NANOPARTICLES: SYNTHESIS, CHARACTERIZATION AND THEIR BACTERICIDAL EFFICACY

2017 ◽  
Vol 9 (6) ◽  
pp. 71 ◽  
Author(s):  
Manyasree D ◽  
Kiran Mayi Peddi ◽  
Ravikumar R
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Copper Oxide ◽  
Cuo Nanoparticles ◽  
Proteus Vulgaris ◽  
X Ray Diffraction ◽  
Gram Positive ◽  
Gram Negative ◽  
X Ray ◽  
Ft Ir

Objective: In the present study copper oxide (CuO) nanoparticles were synthesized and characterized. The antibacterial activity of CuO nanoparticles was carried out against Escherichia coli, Proteus vulgaris, Staphylococcus aureus and Streptococcus mutans.Methods: The synthesis was carried out by coprecipitation method using copper sulfate and sodium hydroxide as precursors. The synthesized copper oxide nanoparticles were characterized by using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), UV-vis spectroscopy and scanning electron microscope (SEM) with Energy Dispersive X-ray Analysis (EDX) techniques. Besides, this study determines the antibacterial activity and minimum inhibitory concentration (MIC) of CuO nanoparticles against gram-positive (Staphylococcus aureus and Streptococcus mutans) and gram-negative (E. coli and Proteus vulgaris) bacteria.Results: The average crystallite size of CuO nanoparticles was found to be 19 nm by X-ray diffraction. FT-IR spectrum exhibited vibrational modes at 432 cm-1, 511 cm-1 and 611 cm-1were assigned for Cu-O stretching vibration. According to UV-Vis spectrum, two bands were observed at 402 nm and 422 nm. ED’s spectrum shows only elemental copper (Cu) and oxide (O) and no other elemental impurity was observed. The antimicrobial assay revealed that Proteus vulgaris showed a maximum zone of inhibition (37 mm) at 50 mg/ml concentration of CuO nanoparticles.Conclusion: In conclusion, copper oxide is a good antibacterial agent against both gram positive and gram-negative organisms.

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.

New frontiers in the plant extract mediated biosynthesis of copper oxide (CuO) nanoparticles and their potential applications: A review

2021 ◽  
pp. 111858
Author(s):  
Hoang Ngoc Cuong ◽  
Shreyas Pansambal ◽  
Suresh Ghotekar ◽  
Rajeshwari Oza ◽  
Nguyen Thi Thanh Hai ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Plant Extract ◽  
Cuo Nanoparticles ◽  
Potential Applications

Methods for Separation of Copper Oxide Nanoparticles From Colloidal Suspension in Dodecane

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Mohammed H. Sheikh ◽  
Muhammad A. R. Sharif
Keyword(s):  
Energy Storage ◽  
Copper Oxide ◽  
Phase Change ◽  
Phase Change Materials ◽  
Research Work ◽  
Cuo Nanoparticles ◽  
Health Hazards ◽  
Suspension Stability ◽  
Reduced Pressure

Phase change materials (PCM) are used in many energy storage applications. Energy is stored (latent heat of fusion) by melting the PCM and is released during resolidification. Dispersing highly conductive nanoparticles into the PCM enhances the effective thermal conductivity of the PCM, which in turn significantly improves the energy storage capability of the PCM. The resulting colloidal mixture with the nanoparticles in suspension is referred to as nanostructure enhanced phase change materials (NEPCM). A commonly used PCM for energy storage application is the family of paraffin (CnH2n+2). Mixing copper oxide (CuO) nanoparticles in the paraffin produces an effective and highly efficient NEPCM for energy storage. However, after long term application cycles, the efficiency of the NEPCM may deteriorate and it may need replacement with fresh supply. Disposal of the used NEPCM containing the nanoparticles is a matter of concern. Used NEPCM containing nanoparticles cannot be discarded directly into the environment because of various short term health hazards for humans and all living beings and unidentified long term environmental and health hazards due to nanoparticles. This problem will be considerable when widespread use of NEPCM will be practiced. It is thus important to develop technologies to separate the nanoparticles before the disposal of the NEPCM. The primary objective of this research work is to develop methods for the separation and reclamation of the nanoparticles from the NEPCM before its disposal. The goal is to find, design, test, and evaluate separation methods which are simple, safe, and economical. The specific NEPCM considered in this study is a colloidal mixture of dodecane (C12H26) and CuO nanoparticles (1–5% mass fraction and 5–15 nm size distribution). The nanoparticles are coated with a surfactant or stabilizing ligands for suspension stability in the mixture for a long period of time. Various methods for separating the nanoparticles from the NEPCM are explored. The identified methods include: (i) distillation under atmospheric and reduced pressure, (ii) mixing with alcohol mixture solvent, and (iii) high speed centrifugation. These different nanoparticle separation methods have been pursued and tested, and the results are analyzed and presented in this article.

scholarly journals Effect of vanadic anhydride and copper oxide on the development of hard porcelain composite and its antibacterial activity

2014 ◽  
Vol 2 (3) ◽  
pp. 297-304 ◽  
Author(s):  
Arpan Kool ◽  
Pradip Thakur ◽  
Biswajoy Bagchi ◽  
Ujjwal Rajak ◽  
Tania Das ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide
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