Enhanced surface morphology of copper oxide (CuO) nanoparticles and its antibacterial activities

2020 ◽  
Author(s):  
S. Prathap Selvaraj
Keyword(s):  
Surface Morphology ◽  
Copper Oxide ◽  
Antibacterial Activities ◽  
Cuo Nanoparticles ◽  
Enhanced Surface

scholarly journals Catalytic Reduction of Hazardous Compound (Triethylphosphate) Using Ni Doped CuO Nanoparticles

2017 ◽  
Vol 2 (4) ◽  
pp. 458
Author(s):  
K. Lakshmi ◽  
K. Kadirvelu ◽  
P. S. Mohan
Keyword(s):  
Surface Morphology ◽  
Copper Oxide ◽  
Catalytic Reduction ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Oxide Nanoparticles ◽  
Efficient Catalyst ◽  
Sunlight Irradiation ◽  
Cuo Nps ◽  
Organophosphorous Compounds

<p class="p1"><span class="s1"> </span>Nickel doped Copper oxide nanoparticles were prepared by hydrothermal method for catalytic reduction of Triethylphosphate (TEP). It is a well known toxicant from organophosphorous compounds. The nanoparticles were characterized by DLS, UV, FTIR, XRD, SEM and EDAX. FTIR and UV results reveals that the functional properties and the absorbance of NPs. DLS and SEM results reveals that the size and surface morphology of NPs. XRD and EDAX results confirms the structural purity of Ni dopants were substituted into the cubic CuO NPs and the elemental composition. Ni doped CuO is an efficient catalyst for catalytic reduction of TEP using sunlight irradiation and it was monitored by UV VIS spectrophotometer.</p>

Eco-friendly Ocimum tenuiflorum green route synthesis of CuO nanoparticles: Characterizations on photocatalytic and antibacterial activities

2021 ◽  
Vol 9 (4) ◽  
pp. 105395
Author(s):  
Saurabh Sharma ◽  
Kuldeep Kumar ◽  
Naveen Thakur ◽  
Suvarcha Chauhan ◽  
Mohinder Singh Chauhan
Keyword(s):  
Antibacterial Activities ◽  
Cuo Nanoparticles ◽  
Green Route ◽  
Ocimum Tenuiflorum

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.

Metal organic chemical vapor deposition of m-plane GaN epi-layer using a three-step approach towards enhanced surface morphology

2018 ◽  
Vol 667 ◽  
pp. 48-54
Author(s):  
Adreen Azman ◽  
Ahmad Shuhaimi ◽  
Al-Zuhairi Omar ◽  
Anas Kamarundzaman ◽  
Muhammad Imran Mustafa Abdul Khudus ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Surface Morphology ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Organic Chemical ◽  
Metal Organic ◽  
Organic Chemical Vapor Deposition ◽  
Enhanced Surface

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.

scholarly journals Size-dependent cytotoxicity of copper oxide nanoparticles in lung epithelial cells

2016 ◽  
Vol 3 (2) ◽  
pp. 365-374 ◽  
Author(s):  
Amaraporn Wongrakpanich ◽  
Imali A. Mudunkotuwa ◽  
Sean M. Geary ◽  
Angie S. Morris ◽  
Kranti A. Mapuskar ◽  
...  
Keyword(s):  
Epithelial Cells ◽  
Copper Oxide ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Lung Epithelial Cells ◽  
Oxide Nanoparticles ◽  
Size Dependent ◽  
Lung Epithelial

The increasing use of copper oxide (CuO) nanoparticles (NPs) in medicine and industry demands an understanding of their potential toxicities.

A cyano-bridged copper(ii)–copper(i) mixed-valence coordination polymer as a source of copper oxide nanoparticles with catalytic activity in C–N, C–O and C–S cross-coupling reactions

2014 ◽  
Vol 38 (9) ◽  
pp. 4267-4274 ◽  
Author(s):  
Manoj Trivedi ◽  
Sanjeev kumar Ujjain ◽  
Raj Kishore Sharma ◽  
Gurmeet Singh ◽  
Abhinav Kumar ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Coordination Polymer ◽  
Copper Oxide ◽  
Mixed Valence ◽  
Cross Coupling ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Oxide Nanoparticles ◽  
Coupling Reactions ◽  
Cross Coupling Reactions

A cyano-bridged Cu(ii)–Cu(i) complex was synthesized and transformed into CuO nanoparticles. Their catalytic activity in C–N, C–O, and C–S cross-coupling reactions was explored.

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