Articles tagged with Copper
Scientists from the University of Tsukuba have experimentally measured hydrogenation of copper-adsorbed formate, a crucial step in converting carbon dioxide into methanol fuel. The study found that at temperatures above 200K, atomic hydrogen can catalyze the reaction, producing a product that decomposes back into gaseous formaldehyde.
Researchers at Tokyo University of Science have developed a fast and facile synthesis method for antibacterial amino acid Schiff base copper complexes using microwave irradiation. The new technique produces high-purity products with promising antimicrobial activity, overcoming the challenge of long synthesis times.
Liu's three-year grant will pursue protein-derived cofactor studies to improve understanding of amino acids and their role in metabolism. The research aims to gain a quicker and more thorough understanding of amino acid function and purpose.
Researchers at Ural Federal University found that zinnia and tobacco plants can survive and even flourish in copper-contaminated soil, suggesting a possible use for landscaping areas. The study showed that these plants adapt by accumulating copper in their roots and limiting its transport to other parts of the plant.
Researchers discovered that copper availability affects the release of nitrous oxide, a potent greenhouse gas. When copper is not available, microbes release more harmful gases instead of nitrogen, which makes up 78% of Earth's atmosphere. By adding metal to natural systems, it may mitigate nitrous oxide release.
Researchers from Tel Aviv University and the Hebrew University discovered charcoal remnants from olive trees at the Chalcolithic site of Tel Zaf, indicating intentional cultivation around 7,000 years ago. This marks the earliest evidence of domestication of a fruit tree worldwide.
A study published in PLOS ONE reveals Cueva de Ardales was a canvas for artwork and burial place for Neanderthals and modern humans from 65,000 to 35,000 years ago. The site provides a unique history of human activity in Spain and sheds light on the development of European culture.
NIST researchers have developed a new atomic radio receiver that boosts signal strength 100-fold by enclosing cesium atoms in a custom copper structure resembling headphones. The structure acts as a split-ring resonator, enhancing the incoming radio signal and enabling the detection of weaker signals.
Scientists from the University of Geneva discover that copper deposits are formed by mechanisms similar to those causing large volcanic eruptions. The 'porphyry' deposits, containing copper, form when hot fluids release from cooling magmas and develop under the earth's surface.
Researchers found that copper-coated surfaces significantly reduced viral load after one hour, while silver-coated surfaces had no effect on infectivity. The team investigated the antiviral properties of various metal-based sacrificial anodes and discovered a clear antiviral effect of copper against Sars-Cov-2.
Researchers create high-performance catalyst to pull ammonia and solid fertilizer from low-level nitrates in industrial wastewater, reducing carbon dioxide emissions. The process works at room temperature and under ambient pressure, with potential for decentralized ammonia production.
Scientists found that a single 45-minute session of moderate-intensity exercise enables the growth of new blood vessels in people with type 2 diabetes. The exercise increases levels of ATP7A, a protein carried by exosomes that helps deliver essential copper to endothelial cells, promoting angiogenesis and reducing oxidative stress.
Researchers have found that the UK's existing copper network cables can support faster internet speeds, but only up to a certain frequency, and will not be able to support high-speed internet in the longer term. The study highlights the importance of investing in future technologies to make high-speed internet available to all.
Bloodworms use copper harvested from sediments to form their jaws, which are strong enough to last five years. The worm synthesizes a material with mechanical properties similar to manufactured metals through a complex process involving protein and melanin.
Researchers successfully grow high-quality single-crystal graphene sheets on insulating supports using a copper-catalyzed decomposition method. The resulting graphene exhibits excellent electronic performance due to its high crystallinity and minimal surface folds.
Researchers have created a novel sorbent that effectively removes copper and zinc from water solutions, with the ability to be reused for efficient treatment of industrial wastewater and drinking water. The sorbent's adsorption properties were enhanced through modification, allowing for up to 60% removal of heavy metals within minutes.
Researchers at Pusan National University have developed oxidation-resistant copper thin films, which could potentially replace gold in semiconductor devices. The films' flat surface reduces the growth of copper oxides on its surface, making them resistant to corrosion.
Scientists have developed a new toolkit to aid in the discovery of porphyry-type copper deposits, crucial for green technologies. The study provides a textural framework for exploration geologists to assess deposit architecture before employing more invasive techniques.
A study published in PLOS Water found that office buildings with low-consumption plumbing may experience chemical and microbiological safety issues due to weekend stagnation. The research highlights the need for regular water testing in commercial buildings, even those designed as 'green' to reduce water consumption.
Researchers have found that two receptors on the surface of endothelial cells come together to enable new blood vessel growth. The discovery reveals a new connection between copper metabolism and angiogenesis, highlighting CTR1 as a potential therapeutic target for conditions like ischemic heart disease.
Researchers at UC San Diego have designed a flexible protein system that selectively binds to non-copper metals, overcoming universal restrictions on metal selectivity. This breakthrough paves the way for the design of novel functional proteins and metal sequestration agents with potential applications in environmental remediation and ...
Researchers at Tokyo University of Science have discovered a method to improve the crystallinity of coordination nanosheets by mixing two metal ion solutions. This approach results in higher crystallinity and improved performance in devices such as electronics and batteries. The findings open a new pathway for tuning the functional pro...
A new wearable magnetic metamaterial helmet can create better brain scans by boosting MRI performance. It fits over a person's head during a brain scan, creating crisper images that can be captured at twice the normal speed.
A study published in Applied Economics analyzed the relationship between precious metal commodities and equity markets, revealing that gold and aluminum are the most desirable metals for investment. The research also found that copper and zinc have the largest spillovers on global equity indices.
A new 'Goldilocks Zone' has been discovered in the Earth's crust, allowing critical metals like gold, copper, and tellurium to pass upwards. This finding sheds light on planetary cycles of metals and could enable more targeted mineral exploration, reducing environmental impact.
Researchers at Hokkaido University have developed a new method for creating chemical subunits using blue LEDs and copper, reducing the need for precious metals. This breakthrough has potential applications in pharmaceutical and photoelectronic development.
A new study from UC Berkeley suggests that copper in soil and seawater acts as a catalyst for producing two potent halocarbon compounds that destroy ozone. The compounds, methyl bromide and methyl chloride, are major contributors to stratospheric ozone depletion and have puzzled scientists for over 20 years.
Researchers at GIST used ultrafast X-ray pulses to study warm dense copper electrons, revealing that bonds harden before melting. The findings could improve understanding of extraordinary material properties and their underlying mechanisms.
A new device has been developed that converts sunlight into two promising sources of renewable fuels – ethylene and hydrogen. The researchers found that by optimizing the working conditions for cuprous oxide, a promising artificial photosynthesis material, they can create a more stable system.
Researchers have found that depleting copper levels in the body can greatly reduce the ability of cancer cells to metastasize, including aggressive breast cancer. The discovery provides hope for developing more effective treatments for high-risk triple-negative breast cancer.
Researchers developed a new fabrication method for wearable pressure sensors that enhance durability, sensitivity and transparency. The sensors can detect various body movements and health indicators, such as pulse, sweat, and temperature.
Researchers developed a method to directly grow high-quality graphene on wafer-scale insulators without transfer, achieving improved electrical performance and carrier mobility. The approach utilizes copper acetate to supply copper clusters, enhancing precursor decomposition and resulting in robust graphene films.
Researchers at UNC Chapel Hill and UC Davis have discovered how the soil bacterium Pseudomonas aeruginosa uses copper to produce fluopsin C, a broad-spectrum antibiotic. This finding could lead to new treatments for infections caused by this pathogenic bacterium.
Researchers have developed a new electrochemical technique for printing metal objects at the nanoscale, achieving resolutions of up to 25 nanometres in diameter. This technology has vast potential applications in fields like microelectronics, sensor technology, and battery production.
Researchers at Lawrence Berkeley National Laboratory have developed a new approach to modify the surface of copper catalysts, improving the conversion of carbon dioxide into useful fuels. The technique involves coating the copper with thin films of ionomers, which steer the reaction towards generating carbon-rich products.
A new process has been identified to accelerate the use of low-cost materials, transforming the energy sector with potential to replace silicone-based solar panels. The dynamic dimeric copper complexes offer a novel combination of fast charge transport and efficient redox mechanisms.
A team of Chinese researchers has developed an electrocatalyst that efficiently converts CO2 into liquid fuels with multiple carbon atoms. The primary products are ethanol, acetone, and n-butanol, which have high energy density and are safe to store and transport.
A recent study published in PLOS ONE found that combining copper ions with a drug once used for treating alcoholism kills medulloblastoma cancer cells and prevents new ones from forming. The therapy also curtails the creation of cancer stem cells, which initiate tumor growth and recurrence.
Researchers have developed a new cancer photodrug that can treat deep-seated tumors more effectively and with reduced toxicity. Copper cysteamine photosensitizers allow the production of reactive oxygen species to kill cancer cells, minimizing damage to healthy cells.
Researchers developed a non-toxic, small-molecule probe that provides real-time visualization of disease progression, overcoming limitations of MRI and PET imaging. The probe binds copper ions and detects dysregulated levels, accurately identifying Wilson's disease and other maladies.
Researchers have found compounds based on gold, silver, and copper that can store hydrogen in a stable manner. These 'metal hydride' complexes could be used to store hydrogen for use in vehicles, potentially revolutionizing the production of clean energy.
Osaka University researchers have created an adhesive-free method to strongly combine copper foil with polytetrafluoroethylene (PTFE), reducing transmission losses in electronic circuits. The heat-assisted plasma treatment technique improves adhesion strength without adding intermediate layers.
The University of Maryland associate professor will use genetics, cell biology, and pharmacology to examine the mechanisms of copper transport and its connection to thermogenesis and fat burning. The research aims to improve human health by understanding how copper relates to hypothermia, obesity, and diabetes.
Scientists at Tokyo University of Science developed a copper-containing polymer that greatly enhances the antibacterial activity of hydrogen peroxide. The use of these tailored polymers resulted in higher catalytic activity and more effective killing of bacteria, opening up new design avenues for antimicrobial drugs.
Researchers at Medical College of Georgia discover that copper transporter ATP7A plays a crucial role in new blood vessel formation and restoring blood flow in ischemic cardiovascular disease. The study suggests that increasing and stabilizing ATP7A levels could lead to the development of new treatments for heart attack, peripheral art...
Researchers developed a unique alloy with improved durability, made possible by casting and annealing regimes producing thermally stable nanoparticles. The new alloy offers high-strength, heat-resistance, and could replace expensive copper conductors in aircraft and rail transport.
Researchers analyzed over 300 bronze objects to map trade networks for copper in Bronze Age Scandinavia. The study found that metal supplying networks and trade routes changed several times during the Nordic Bronze Age.
A study found tiny deposits of elemental copper and iron in the brains of two deceased patients with Alzheimer's disease. The presence of these metallic elements, previously observed only in microorganisms, suggests a new aspect of metal neurochemistry.
Researchers developed catalysts for selective ethanol conversion, improving upon existing precious metal-based options. The new catalysts exhibit high alcohol conversion and selectivity to acetaldehyde, making them a promising alternative for industrial applications.
Researchers found that hygiene measures such as heat, soap, and alcohol treatment can effectively eliminate new coronavirus variants. The variants have similar surface stability to the wild type virus but can be rendered harmless by these methods.
Researchers at the University of Adelaide found Cypriot grape varieties Maratheftiko and Xynisteri are well-suited for hot climates and deliver desirable flavor compounds. The study revealed comparable concentration of flavor compounds in Cypriot wines to popular Australian wines.
Scientists have developed a new method to extract metals like copper from their parent ore body using an electric field. This non-invasive technique has the potential to transform the mining industry by dissolving metals from previously inaccessible deposits.
Researchers have discovered a new method for converting toxic copper ions into stable single-atom copper using bacteria found in copper mines. This process is safer and more efficient than current methods, which often require harsh chemicals and labor-intensive processes.
Researchers at KIST have created a large-scale CO2 conversion system using a sea urchin-shaped nano copper catalyst, which increases catalytic activity and yields ethylene by over 50%. The findings suggest that increasing copper hydroxide content is key to enhancing efficiency.
Researchers at Ruhr-University Bochum and University of Duisburg-Essen developed a stable copper catalyst for CO2 conversion using boron. The catalyst's selectivity and long-term stability were improved, enabling the formation of larger carbon compounds that can be used as base chemicals or fuels.
Researchers have developed copper foams with microscopic pores that effectively filter out submicron-sized aerosols while being durable enough to be decontaminated and reused. The foams are also antimicrobial and recyclable, making them economically competitive with current products.
Scientists at KAUST have successfully synthesized copper nanoclusters with a cuboid shape, exhibiting promising properties for photoluminescence and catalysis. The unique structure is driven by intercluster noncovalent bonding interactions, including hydrogen bonding and van der Waals forces.
Researchers developed a data transfer system that pairs high-frequency silicon chips with a polymer cable as thin as a strand of hair, transmitting information up to 10 times faster than a USB. The system offers improved energy efficiency and bandwidth for applications such as server farms, aerospace, and automotive industries.
Isabel Barton is developing a more proactive approach to extraction by applying detailed characterization methods to quantify relevant ore properties. Her research aims to link these properties to leaching results, leading to more efficient mining operations worldwide.
Researchers have developed a more sustainable approach to treating citrus canker, which reduces copper usage by up to 80%. The new technique involves using less water and copper, resulting in lower costs and environmental impact. By adopting this method, citrus growers can minimize the risk of developing copper-resistant strains.