Thesis on copper oxide nanoparticles
characterization and in vitro toxicity of copper nanoparticles (cu-nps) in murine neuroblastoma (n2a) cells. thesis. sitao veronica brownheim, capt, usaf.
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Copper Oxide Nanoparticles Thesis Paper
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"Synthesis of Copper Oxide Nanoparticles in Droplet Flow Reactors" by Christopher Reilly
Annual Review of Physical Chemistry, 55, — CrossRef Google Scholar 9. Preparation, theses and photovoltaic properties of cuprous oxide—a review. Solid State Electronics, 29 17— CrossRef Google Scholar PMC Synthesis, characterization, and antimicrobial properties of copper nanoparticles 1Department of Chemistry, Faculty of Science, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia 2Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia 3Materials how to write an essay prompt Energy, Research Copper, Karaj, Iran 4Faculty of Pharmacy, UiTM, Puncak Alam, Selangor, Malaysia 5Department of Environmental Copper, Faculty of Public Health and Tropical Medicine, Jazan University, Jazan, Kingdom of Saudi Arabia Correspondence: This work is published by Dove Medical Press Limited, and licensed oxide Creative Commons Attribution — Non Commercial unported, v3.
Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. This article has been cited by other articles in PMC. Abstract Copper nanoparticle synthesis nanoparticles been gaining attention due to its availability. However, factors such as thesis and rapid oxidation have made it a difficult thesis area. In the present work, pure copper nanoparticles were prepared in the presence of a chitosan stabilizer through chemical means.
The oxide nanoparticles the nanoparticles was nanoparticles using different characterization techniques, including ultraviolet copper spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and field emission scanning term paper quiz microscopy.
The antibacterial as well as antifungal activity of the nanoparticles were investigated using several microorganisms of interest, including methicillin-resistant Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella choleraesuis, and Candida albicans.
Copper Oxide Nanoparticles Thesis Paper
The oxide of a chitosan medium on oxide of the microorganism was studied, and this was found to influence growth rate. The size of the copper nanoparticles obtained was in the range of 2— nm, depending on the concentration of the chitosan stabilizer. The World Organization for Animal Health, Food and Agriculture Organization, and World Health Organization have all commented on the serious mcpherson middle school homework hotline posed by antimicrobial-resistant pathogenic organisms to human and animal health.
This development had compelled clinicians to rely on in vitro antimicrobial susceptibility testing for copper purposes. Nanotechnology is a copper of science with vast potential in medicine. Being analogous with nature, the combination of nanoscience and biology will not only strengthen the fight against pathogenic microorganisms but can also result in a change in approach towards combating infectious diseases.
They exhibit a wide range of properties, including optical, electrical, catalytic, 8 magnetic, and biological activity, 9 which is different from that of their bulk materials. Some of the biological properties of nanoparticles have been explored by antimicrobial susceptibility testing of nanoparticles produced from different metals using different synthetic methods.
Antibacterial activity has been reported against Escherichia coli 10 — 12 and a nonresistant strain of Gram-positive bacteria Staphylococcus aureus11 — 13 and the results obtained indicate inhibition of growth of the organism due to addition of the nanoparticles.
Generally, metallic nanoparticles show antibacterial and antifungal activity, even though there are environmental and human safety concerns regarding the release and consumption of metal nanoparticles which are yet nanoparticles be explored. Excessive release of silver, for example, causes environmental pollution which in nanoparticles makes silver harmful to humans and animals.
Copper is no exception, because an excess of copper in the human body leads to generation of the most damaging radicals, such as the hydroxyl radical. The choice of copper in the present research is attributed to the above-mentioned factors; in addition, copper nanoparticles are reported to have antimicrobial activity against a number of species of bacteria and fungi.
Previous studies have indicated that copper nanoparticles have antimicrobial activity against Cover letter for deputy director. Therefore, alternative pathways have been developed to synthesize metal nanoparticles in the presence of oxides eg, polyvinylpyrrolidone, polyethylene glycol, and chitosan and surfactants cetyl trimethyl ammonium thesis as stabilizers, and to form coatings on the surface of nanoparticles.
Recently, plant extracts have been used to stabilize nanoparticles in green synthesis. Chitosan is the second naturally occurring and most abundant biopolymer after cellulose, and is obtained by removal of an acetyl group from chitin. The copper activity of the copper nanoparticles nanoparticles in the present study was tested against various microorganisms of interest, including Gram-positive bacteria such as methicillin-resistant S.
Copper Oxide (CuO) Nanoparticles - Properties, Applications
The antimicrobial activity of copper nanoparticles against a number of microorganisms has been reported previously. The ultimate purpose of this study was to analyze the effect of chitosan on the antimicrobial properties of copper nanoparticles synthesized by chemical means.
Chitosan molecular weight ,—, and hydrazine Milli Q water EMD Millipore Bedford, MA, USA was used throughout the experiment. In the second step, 2 mL of NaOH 0.
The pH of the nanoparticle solution was kept at 8. Characterization Ultraviolet-visible spectra for the thesis red copper were measured using an ultraviolet PC-Shimadzu B spectrophotometer Shimadzu, Osaka, Japan. Samples were dried and sputter-coated thesis abstract francais nanoparticles film using an SCD sputter coater Baltec, Canonsburg, PA, USA.
The samples were then imaged under the field emission scanning electron microscope. Transmission electron microscopic observations oxide carried out using an H electron microscope Hitachi, Tokyo, Japanand the particle size distribution was obtained using UTHSCSA Image Tool version 3.
Microorganisms Four species of bacteria, including two Gram-positive species, ie, a pathogenic strain of MRSA and B.