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Tingting Sun et al.
PloS one, 7(8), e43442-e43442 (2012-08-24)
Metal oxide nanoparticles (NPs) are among the most highly produced nanomaterials, and have many diverse functions in catalysis, environmental remediation, as sensors, and in the production of personal care products. In this study, the toxicity of several widely used metal
Lina Kiaune et al.
Reviews of environmental contamination and toxicology, 213, 1-26 (2011-05-05)
Besides being a naturally occurring element and an essential micronutrient, copper is used as a pesticide, but at generally higher concentrations. Copper, unlike organic pesticides, does not degrade, but rather enters a complex biogeochemical cycle. In the water column, copper
Manizhe Moradi Shahre Babak et al.
Environmental technology, 34(1-4), 1-6 (2013-03-28)
In this research the catalytic effect of copper compounds (ionic, oxide and oxide nanopowder) on the oxidation of ferrous iron by aeration was studied experimentally. When copper exists in solution, the oxidation rate of iron(II) will increase. The experimental results
Susan Seifert et al.
Langmuir : the ACS journal of surfaces and colloids, 28(42), 14935-14943 (2012-10-06)
The adsorption of poly(vinylformamide) (PVFA) and its derivative statistical copolymer poly(vinyl-formamide-co-vinylamine) (PVFA-co-PVAm) on metallic copper and copper oxide particles as well as planar copper surfaces was studied as a function of the degree of hydrolysis of PVFA, the pH, and
Dong-Won Jung et al.
Journal of nanoscience and nanotechnology, 12(4), 3317-3321 (2012-08-02)
Nano-sized Cu-Sn and Cu oxide particles supported on ball-milled graphite were synthesized, and their electrochemical characteristics for use as anode active materials in lithium-ion batteries were investigated. The samples were also characterized via FE-SEM, XRD, and TGA. Most of the
Zhonghai Zhang et al.
ACS nano, 7(2), 1709-1717 (2013-02-01)
In this work, we propose a solution-based carbon precursor coating and subsequent carbonization strategy to form a thin protective carbon layer on unstable semiconductor nanostructures as a solution to the commonly occurring photocorrosion problem of many semiconductors. A proof-of-concept is
Amparo Llorens et al.
International journal of food microbiology, 158(2), 113-119 (2012-07-28)
Cellulose/copper composites with antifungal properties have been synthesized by physical/chemical methods. Physical treatments by heat or by a combination of heat and UV radiation provided composites with metallic copper and excellent interfacial adhesion; in contrast, chemical reduction with borohydride generated
Phenny Mwaanga et al.
Aquatic toxicology (Amsterdam, Netherlands), 150, 201-209 (2014-04-05)
Whilst a considerable number of studies have been reported on the acute toxicity of nanoparticles (NPs) on invertebrates such as Daphnia magna, few studies have been reported on the biochemical change (biomarkers) induction on these species by NPs, especially metal
Ligand-free Cu2O-catalyzed cross coupling of nitrogen heterocycles with iodopyridines
Teo Y, et al.
Tetrahedron, 69, 7279-7284 (2013)
Chia-Ying Chiang et al.
Nano letters, 12(11), 6005-6011 (2012-11-01)
Three-dimensional (3D) structures such as nanowires, nanotubes, and nanorods have the potential to increase surface area, reduce light reflection, and shorten charge carrier transport distances. The assembly of such structures thus holds great promise for enhancing photoelectrochemical solar cell efficiency.
Jing An et al.
Journal of environmental sciences (China), 24(5), 827-833 (2012-08-17)
A mixture of five commonly used pharmaceuticals and personal care products (PPCPs) was degraded using a new combined catalyst under visible light irradiation. Scanning electron microscopy and X-ray diffraction analysis revealed that the combined catalyst was composed of copper-plating iron
Suzanne M Opalka et al.
Organic letters, 15(5), 996-999 (2013-02-15)
It is demonstrated that homogeneous N-heterocyclic carbene-copper(I)-chloride complexes can be prepared continuously by flowing NHC precursors through a packed bed of solid Cu(2)O suspended in molecular sieves. The method enables the synthesis of a wide range of complexes including those
Arunava Pradhan et al.
Chemosphere, 89(9), 1142-1150 (2012-07-04)
Increased commercialisation of nanometal-based products augments the possibility of their deposition into aquatic ecosystems; this, in turn, may pose risks to aquatic biota and associated ecological functions. Freshwater invertebrate shredders mostly use microbially-colonized plant litter as food resource and play
John Colombo et al.
The Journal of nutrition, 144(8), 1298-1305 (2014-05-23)
A double-blind, randomized clinical trial was conducted to determine the effects of prevention of zinc deficiency on cognitive and sensorimotor development during infancy. At 6 mo of age, infants were randomly assigned to be administered a daily liquid supplement containing
Lichen Liu et al.
Nanoscale, 4(20), 6351-6359 (2012-09-05)
In this work, ultra-small Cu(2)O nanoparticles have been loaded on TiO(2) nanosheets with {001} facets exposed through a one-pot hydrothermal reaction. These Cu(2)O nanoparticles are well-dispersed on TiO(2) nanosheets with narrow size distributions and controllable sizes from 1.5 to 3.0
Arka Mukhopadhyay et al.
Bioresource technology, 127, 25-36 (2012-11-08)
The present study relates to a nanotechnology enabled method in which purified laccase from Escherichia coli AKL2 was supplemented with 100 μM copper oxide nanoparticles (Cu(2)O) (NP-laccase). The activity, half life and stability of NP-laccase were enhanced by 4, 42
Synthesis of copper and copper (I) oxide nanoparticles by thermal decomposition of a new precursor.
Salavati-Niasari M and Davar F.
Material Matters, 63(3), 441-443 (2009)
Copper (I) Oxide
Tuckmantel W
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Patrícia Anacleto et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 104, 95-108 (2017-02-06)
The presence of contaminants in aquatic ecosystems can cause serious problems to the environment and marine organisms. This study aims to evaluate the phycoremediation capacity of macroalgae Laminaria digitata for pesticides (diflubenzuron and lindane) and toxic elements (cadmium and copper)
Shengsen Zhang et al.
Applied microbiology and biotechnology, 96(5), 1201-1207 (2012-06-29)
In this work, we report the use of a non-toxic nanocrystal Cu(2)O-loaded TiO(2) nanotube array (Cu(2)O/TNTs) film as high-performance visible-light bactericidal photocatalyst. The samples were characterized by field-emission scanning electron microscopy, X-ray photoelectron spectroscopy, and ultraviolet-visible diffusion reflection spectroscopy. This
Jay Singh et al.
The journal of physical chemistry. B, 117(1), 141-152 (2012-12-29)
The ultrafine monodispersed cuprous oxide (Ufm-Cu(2)O) nanoparticles have been successfully synthesized by a facile wet chemical method using poly-N-vinylpyrrolidone (PVP) as a capping agent. This colloidal solution of Ufm-Cu(2)O and chitosan (CS) is electrophoretically deposited (EPD) onto the indium tin-oxide
L R Goodes et al.
Biofouling, 28(6), 613-625 (2012-06-22)
A test matrix of antifouling (AF) coatings including pMMA, an erodible binder and a novel trityl copolymer incorporating Cu₂O and a furan derivative (FD) natural product, were subjected to pontoon immersion and accelerated rotor tests. Fluorescence and optical microscopy techniques
Miguel A Vargas-Reus et al.
International journal of antimicrobial agents, 40(2), 135-139 (2012-06-26)
Dental plaque accumulation may result in peri-implantitis, an inflammatory process causing loss of supporting bone that may lead to dental implant failure. The antimicrobial activities of six metal and metal oxide nanoparticles and two of their composites against bacterial pathogens
Guoqiang Liu et al.
Water environment research : a research publication of the Water Environment Federation, 84(7), 569-576 (2012-08-11)
Effects of nano-copper(II) oxide (nano-CuO) and nanomagnesium oxide (nano-MgO) particles on activated sludge endogenous respiration (aerobic digestion), biochemical oxygen demand (BOD) biodegradation, and nitrification were investigated through respiration rate measurement. For comparison, the effects of Cu(II) and Mg(II) ions on
Electrochemical deposition of copper (I) oxide films.
Golden TD, et al.
Chemistry of Materials, 8(10), 2499-2504 (1996)
Minmin Liu et al.
Biosensors & bioelectronics, 45, 206-212 (2013-03-19)
In this study, a sensor for the detection of glucose and hydrogen peroxide was developed on the basis of Cu2O nanocubes wrapped by graphene nanosheets (Cu2O/GNs) as electrocatalysts. Cubic Cu2O nanocrystals/graphene hybrid has been successfully fabricated by a chemical reduction
Wenwu Shi et al.
ACS applied materials & interfaces, 4(10), 5590-5607 (2012-09-19)
Fabrication of oxide nanowire heterostructures with controlled morphology, interface, and phase purity is critical for high-efficiency and low-cost photocatalysis. Here, we have studied the formation of copper oxide-cobalt nanowire heterostructures by sputtering and subsequent air annealing to result in cobalt
E Rezabal et al.
Physical chemistry chemical physics : PCCP, 15(4), 1148-1153 (2012-12-12)
The activation of methane and its subsequent conversion into more valuable feedstocks under ambient conditions are regarded as one of the major challenges in contemporary catalysis, due to its thermodynamically strong and kinetically inert C-H bond. Several enzymes and synthetic
Xiang Fei et al.
Nanoscale, 5(17), 7991-7997 (2013-07-19)
Three-dimensional (3D) copper oxide (CuO) nanostructures were synthesized in a regenerated Bombyx mori silk fibroin aqueous solution at room temperature. In the synthesis process, silk fibroin served as the template and helped to form the hierarchical CuO nanostructures by self-assembly.
Fu-Rong Xiu et al.
Journal of hazardous materials, 233-234, 200-206 (2012-07-28)
In this work, an effective and size-controlled process for preparing Cu(2)O nanomaterials from waste PCBs by supercritical water (SCW) combined with electrokinetic (EK) technique was developed. SCW was used for the pretreatment of waste PCBs, and highly uniform and monodisperse
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