Inorganic and bioinorganic perspectives october 2007 chemistry department brookhaven national laboratory p. Metal oxide nanoparticles marcos fernandezgarcia, jose a. Copper ll oxide nanoparticles cuonps belongs to monoclinic structure system. We studied the structural and antimicrobial properties of copper oxide nanoparticles cuo. The reduction process takes place under inert atmosphere of nitrogen over a period of 2 h. Nabiyounib a institute of nano science and nano technology, university of kashan, kashan, p. There are numerous studies on the effect of copper cu and copper oxide cuo nanoparticles on environmental organisms. Pdf mechanism of antibacterial activity of copper nanoparticles. Understanding the pathway of antibacterial activity of. Acute effect of nanocopper on liver tissue and function in rat.
Characterization of copper nanoparticles synthesized by a. Xray diffraction patter xrd pattern showed the crystalline nature of cuo nps. Cuprous oxide is ptype direct band gap ii vi semiconductor 3 with band gap of 2 ev and cupric oxide has a monoclinic structure and presents ptype semiconductor behavior with a. Preparation of copper oxide cuo nanoparticles and their bactericidal activity. Zinc oxide zno nanoparticles have received a remarkable consideration due to their extra ordinary uv filtering properties, photochemical antifungal, high catalytic and antibacterial activities. A chemical reduction approach to the synthesis of copper. Characterisation of copper oxide nanoparticles for. Copper oxide nanoparticles prepared by solid state thermal decomposition. Facile synthesis of copper oxide nanoparticles using copper. Particularly, their electrical properties can be affected by their quantum size leading to generation of ptype semiconductor. Nanoparticles, nanofluid, critical heat flux chf, enhancement, deionised water. In the present study, copper oxide cuo colloidal nanoparticles nps were synthesized using laser ablation of copper pellet immersed in. For the synthesis, copper nitrate and sodium hydroxide in 1.
A green method for the synthesis of copper nanoparticles. Asamoah, abu yaya, bismark mensah, pascal nbelayim, vitus apalangya, yaw d. The second part describes the role of astrocytes as a central key player in the brain homeostasis chapter 1. A copper nanoparticle is a copper based particle 1 to 100 nm in size. However, copper oxide fumes can be breathed in and fume inhalation during the smelting of copper oxide powder can lead to metal fume fever, a disease with flulike symptoms. Copper oxide nanoparticles prepared by solid state thermal. Preprint title synthesis and characterization of zinc and copper oxide nanoparticles and their antibacterial activity authors richard b. Like many other forms of nanoparticles, a copper nanoparticle can be formed by natural processes or through chemical synthesis. Synthesis and antibacterial activity of cuo nanoparticles. Pdf antibacterial activity of copper oxide nanoparticles against.
This work investigates the role of oxidation state in the antibacterial activity of copper oxide nanoparticles nps. Synthesis of copper oxide nanoparticles by a novel method and. Copper nanoparticles have antibacterial activity in vitro 3. Wastewater disinfection by synthesized copper oxide. Copper oxide cuo nanoparticles are synthesized by aqueous precipitation method using copper chloride as a precursor and naoh as stabilizing. It is a ductile metal with very high thermal and electrical conductivity. It has excellent antimicrobial activity against various bacterial strains 2. Mechanism of antibacterial activity of copper nanoparticles view the table of contents for this issue, or go to the journal homepage for more 2014 nanotechnology 25 5101. Possible mechanisms of antimicrobial activity of cuo nps should be further investigated. It has many useful physical and chemical properties such as superconductivity at high temperature, photovoltaic properties, relatively stable, low cost and has antimicrobial. Microwave synthesis of copper oxide nanoparticles using tea leaf and coffee powder extracts and its antibacterial activity prasanta sutradhar mitali saha debasish maiti received.
Structural and antibacterial activity of copper oxide nano. Department of chemical engineering, faculty of engineering, the british university in egypt bue, elshorouq city, cairo 11837, egypt 2. Introduction in recent years, bio synthesis of nanoparticles is an important approach in nanotechnology 1. A comparison between metal oxide nanoparticles and carbon nanotubes hanna l. Therefore, we aimed in this study to test the antibacterial activity of zno nanoparticles on important and perilous bacteria such as p. It has wide different applications according to the physical and chemical properties, such as superconductivity, photovoltaic properties, relatively stable, low cost and the antimicrobial activity 7. These nanoparticles are of particular interest due to their historical application as coloring agents and their modernday biomedical ones. Field emission scanning electron microscope fesem and field emission. Copper oxide cuo nanoparticles properties, applications. The reduction process takes place under inert atmosphere of nitrogen over a period of. Copper oxide nanoparticles detailed analysis xrd sem tem. The copper nanoparticles were synthesized by adding 2. In this study, antibacterial and antifungal effects of nanocuo were studied against some oral bacteria and yeast fungi.
Although the structural properties of activated carbon are effective. Copper nanoparticles cunps were synthesized under ambient temperature by wet chemical method and evaluated their antibacterial activity by the means of well diffusion method. Copper oxide nanoparticles plays a crucial role in the production of hightech superconductors, opticalelectronic applications, and superconducting materials, in addition to roles in photoconductive, photothermal and semiconductor applications. Copper oxide nanoparticles such prepared has good catalytic properties. The morphology of copper nanoparticles is round, and they appear as a brown to black powder. A typical xray diffraction pattern obtained for copper oxide and magnesium oxide nanoparticles is shown in figure 3.
Preparation of copper oxide cuo nanoparticles and their. Copperii oxide is semiconducting compound that belongs to monoclinic structure systems. They can be reduced to metallic copper when exposed to hydrogen or carbon monoxide under high temperature. Article pdf available in journal of nanomaterials 20143. The ph of the solution plays an important role in the synthesis of copper oxide nanoparticles. Xray diffraction pattern shows that mgo nanoparticles are polycrystalline in. Antimicrobial effect of copper oxide nanoparticles on some oral. Synthesis, characterization, and antimicrobial activity of. Synthesis, characterization, and antimicrobial activity of copper oxide nanoparticles article pdf available in journal of nanomaterials 20143.
Zinc oxide zno is a provocative material for applications in electronics, photonics, acoustics and sensing. Copper ii acetate was used as a precursor and sodium hydroxide as a reducing agent. The findings add strong support to a contact killing mechanism of copper oxides cuo and cu 2 o through which bacteria initially suffer severe damage to the cell envelope. Microwave synthesis of copper oxide nanoparticles using. Synthesis of copper oxide nanoparticles using simple chemical. Metal oxide nanoparticles brookhaven national laboratory. It has many useful physical and chemical properties such as superconductivity at high temperature, photovoltaic properties, relatively stable, low cost and has antimicrobial activity 6. Copper oxide nanoparticles and bulk copper oxide, combined with indole3acetic acid, alter aluminum, boron, and iron in pisum sativum seeds. Antibacterial activity of copper oxide cuo nanoparticles.
Copper nanoparticles synthesis chemical reduction one of the most important methods for the synthesis of copper nanoparticles is the reduction chemical method. They also possess photovoltaic and photoconductive properties as cuo crystal structures have a narrow band gap. Mechanism of antibacterial activity of copper nanoparticles. Zinc oxide nanoparticles prepared from the solution of zinc acetate, peg and ammonium carbonate.
This is an environment friendly method to synthesize copper oxide nanoparticles without involving any toxic chemical and stabilizing agent. Synthesis of tryptophan cappedcoppercupric oxide trpcuo the precipitation method has been employed in the synthesis of trpcapped cuo for the synthesis, nitrate and sodium hydroxide in 1. This article discusses about the properties and applications of copper oxide nanoparticles. Due to the aforementioned properties, copper oxide cuo nanoparticles have found many applications in lithium ion. O cuprous oxide and cuo cupric oxide are two important oxide compounds of copper. Karlsson, pontus cronholm, johanna gustafsson and lennart moller unit for analytical toxicology, department of biosciences and nutrition at novum, karolinska institutet, se141 57 huddinge, stockholm, sweden. Copper cu nanoparticles, nanodots or nanopowder are black brown spherical high surface area metal particles.
Mechanism of antibacterial activity of copper nanoparticles article pdf available in nanotechnology 25. Experimental investigation of upgraded diesel fuel with copper oxide nanoparticles on performance and emissions characteristics of diesel engine sherry khulief 1 and tarek m. Sonochemicalassisted synthesis of copper oxide nanoparticles and its application as humidity sensor h. Synthesis and characterization of copper oxide nanoparticles.
In this article was developed a green synthesis of cuo nanoparticles on vegetal activated carbon. Copper oxide cuo nanoparticles were characterised and investigated with respect to potential antimicrobial applications. Surfaces of copper nanoparticles affect interact directly with the bacterial outer membrane, causing the membrane to rupture and killing bacteria. In this technique a copper salt is reduced by a reducing agent such as polyols, sodium borohydride, hydrazine, ascorbic acid.
Copper nanoparticles are widely synthesized and used as metal catalyst, heat transfer fluids in machine tools, semiconductors, and even in antibacterial medications 1, 2. In this study, we have analyzed the effect of nabh 4 concentration on the synthesis of cunps. Here we get a new line of high purity zinc oxide nanoparticles primarily targeted for antimicrobial activity against bacillus subtilis and escherichia coli. Copper oxide nanoparticles appear as a brownishblack powder. Most take into account the effect of soluble copper ions andor compare the effects of nanoscale cu and cuos with effects of coarser cu and cuo particles. Copper oxide nanoparticles nanopowder american elements. Copper oxide nanoparticles cuonps display interesting optical, catalytic, mechanical and electrical properties. Antibacterial activity of cu nanoparticles against e. Iran b department of physics, faculty of science, arak university, arak 3815688349, iran. Synthesis and antimicrobial activity of copper nanoparticles.
All the peaks in diffraction pattern shows monoclinic structure of cuo, and the peaks. Then further damage ensues by an independent pathway of each copper oxide nanoparticle. Electrochemical synthesis of nitrogendoped carbon quantum dots decorated copper oxide for the sensitive and selective detection of. Damoah, benjamin agyeituffour, david dodooarhin and ebenezer annan publication date 22 jan 2020.
Prepared nanoparticles will be tested for their activity towards gas sensing. Copper is a block d, period 4 element, while oxygen is a block p, period 2 element. Copper oxide nanomaterials prepared by solution methods. Studies of copper nanoparticles effects on microorganisms. Understanding the pathway of antibacterial activity of copper oxides. Synthesis, characterization, and antimicrobial activity of copper.
In this work, facile biosynthesis of copper oxide nanoparticles has been shown using extract of li. Cuo nps were investigated using escherichia coli atcc 25922 and. The copper nanoparticles were characterized by xray diffraction, atomic absorption spectrometry, and fourier transform infrared spectrometry. Synthesis and characterization of zinc and copper oxide. Antibacterial activity of copper nanoparticles synthesized by electrolysis was evaluated by using standard zone of inhibition zoi microbiology assay. The precipitation method has been employed in the synthesis of trpcapped cuo nanoparticles. The copper oxide nanoparticles cuonps possess a wide range of applications.
Compared with bulk material, the advanced properties of cuo nanostructures have been demonstrated. Copperlloxide nanoparticles cuonps belongs to monoclinic structure system. Transmission electron microscopy tem demonstrated particle sizes in the range 2095 nm. Copper oxide nanoparticles detailed analysis xrd sem tem raman. Antimicrobial activity of copper nanoparticles synthesised by. Copper oxide nanomaterials prepared by solution methods, some. Electrochemical synthesis of nitrogendoped carbon quantum dots decorated copper oxide for the sensitive and selective detection of nonsteroidal antiinflammatory drug in berries. Figure 4a represents the antibacterial activity of cuo nps for various bacteria in a well diffusion assay. The mixtures were refluxed between 190 c and 200 c for 2 to 3 h by stirring in air until the complete reduction of the metallic salts. Copper ii oxide is semiconducting compound that belongs to monoclinic structure systems.
Development of improved methods for the synthesis of copper nanoparticles is of high priority for the advancement of material science and technology. Copper oxide nanoparticles, pyrus pyrifolia, xrd, ftir, uvvis, fesem, edx, afm, photocatalytic activity. Antibacterial activity of modified zinc oxide nanoparticles. Zinc oxide nano particles are better antibacterial agent 2122. Synthesis and characterisation of copper oxide nanoparticles. Pdf synthesis, characterization, and antimicrobial activity of. Single crystalline nanoparticles of copper oxide cuo having almost uniform particle size of 4010nm have been synthesized by a facile and versatile route. The method is based on the chemical reduction in aqueous copper salt using ascorbic acid as reducing agent at low.
Synthesis and characterization ensieh shahsavani 1, nourollah feizi, aliakbar dehno khalaji2 1department of chemistry, payame noor university, p. It was found that nanoscaled cuo, generated by thermal plasma technology, contains traces of pure cu and cu 2 o nanoparticles. Surface plasmon resonance spr was occurred at 575 nm. Under high temperature, copper oxide meets with hydrogen or carbon monoxide, can restore copper metal. Antibacterial activity table of copper nanoparticles against e. Pdf on mar 1, 2014, raj kumar salar and others published antibacterial activity of copper oxide nanoparticles against gram negative. Therefore, we aimed in this study to test the antibacterial activity of zno nanoparticles on important and perilous bacteria such as. Copper oxide nanoparticles, modified solgel, surfactant, gassensor. Copper oxide can be found as a safe source of copper in overthecounter vitamin supplements, but oral uptake of too high amounts of such supplements should be avoided. Copper oxide nanoparticles were prepared by electrochemical reduction method using tetra butyl ammonium bromide tbab as structure directing agent in an organic medium viz. The results show that with the increase in the molar ratio of lascorbic acid the concentration of. Preparation and characterization of copper oxide nanoparticles.
Mar 26, 20 the properties of nanoparticles, for example, can be easily altered by varying their size, shape, and chemical environment. The tem image, shown in figure 9, recorded different sizes of copper oxide nanoparticles which arose from the bioreduction of copper sulfate solution by a. Synthesis of copper oxide nanoparticles by a novel method. Nanoparticles have many active sites as compared to the bulk materials because of its large surface to volume ratio. Chapter iii synthesis and characterization of cuo and mgo. Cuprous oxide is ptype direct band gap ii vi semiconductor 3 with band gap of 2 ev and cupric oxide has a monoclinic structure and presents ptype semiconductor behavior with a indirect band gap of 1. Nanoscale copper particles are typically 1030 nanometers nm with specific surface area ssa in the 30 70 m2g range and also available with an average particle size of 70 100 nm range with a specific surface area of. Themean size of the nanoparticles was estimated about5 nm by dls analysis. Gaur, and renu pasricha the exploitationofvarious biomateri alsfor the biosynthesis ofnanoparticles is considered as green technology as it does not involve any harmful chemicals.
The percentage of biocidalbacteriostatic activity is closely related to the oxidation state of the copper oxides. Herein, starchprotected zerovalent copper cu nanoparticles have been successfully synthesized by a novel facile route. Cubased nanoparticles metallic copper, copper oxides, and hybrid copper nanostructures and copper nanoparticles immobilized into or supported on various support materials sio 2, magnetic support materials, etc. Mechanism of antibacterial activity of copper nanoparticles arijit kumar chatterjee, ruchira chakraborty and tarakdas basu department of biochemistry and biophysics, university of kalyani, kalyani741 235, west bengal, india email. Synthesis of copper oxide nanoparticles using simple.
We studied the structural and antimicrobial properties of copper oxide nanoparticles cuo nps synthesized by a very simple precipitation technique. Pdf green synthesis of copper oxide nanoparticles using. Synthesis and impregnation of copper oxide nanoparticles on. Copper nanoparticles are one of the first engineered. Characterization of copper nanoparticles synthesized by a novel microbiological method ratnika varshney, seema bhadauria,m. Compared with ordinary copper oxide powder, the nanoparticles of copper oxide show superior catalytic activity and selectivity. Understanding the pathway of antibacterial activity of copper oxide. Experimental investigation of upgraded diesel fuel with. Biosynthesis of copper oxide nanoparticles using extract of e.