Articles tagged with Copper
Scientists synthesized multi-layered copper and nickel nanowires to study their magnetoresistance properties, which could lead to more accurate compasses, radiation monitors, and electronic devices. The study found a nonlinear relationship between the nanowire length and the number of layers.
Researchers have developed copper nitride semiconductors that can replace toxic materials in photovoltaic cells, offering a brighter future for solar energy. The unique nitriding technique and fluorine doping enable efficient p-type and n-type conduction, promising scalable and low-cost manufacturing routes.
A new compound, DPM-1001, has shown promise in reducing copper levels in cells and improving symptoms of Wilson's disease. The study confirmed that the compound is orally available and specifically targets copper, reducing unwanted side effects.
Researchers analyzed ancient tools found with a 5,300-year-old frozen mummy to understand the Copper Age mountain people's way of life. The study revealed that the tools were made from chert collected from distant outcrops, indicating long-distance cultural contacts.
New research from the University of East Anglia shows that DNA's shape can be manipulated using various triggers including copper, oxygen, and a substance similar to Vitamin C. This discovery has potential applications in nanotechnology and DNA-based computing.
A new technique doubles the conversion of carbon dioxide to an essential plastic component, ethylene. The approach uses copper coated with polyacrylamide to increase efficiency, offering a promising method for recycling CO2 and reducing greenhouse gas emissions.
A study by researchers at Technical University of Munich found that alternative shotgun ammunition materials containing copper and zinc can be highly toxic to water organisms, potentially threatening environmental protection. The study suggests a ban on these materials may be necessary to replace lead shot.
A team of chemists at Penn State developed a designer's toolkit to construct complex nanoparticles using a simple mix-and-match process. They created a library of 47 distinct nanoparticles with varying materials and shapes, overcoming the bottleneck in laboratory synthesis.
Researchers at UC Riverside have developed a new 1D material that can conduct high current densities, paving the way for nanometer-scale transistors and circuits. The material, zirconium tritelluride, surpasses conventional copper interconnect technology by 50 times.
A KAIST research team developed a new anode material using copper sulfide, exhibiting 1.5 times better cyclability and 40% reduced cost compared to existing materials. The discovery may contribute to the commercialization of sodium ion batteries and reduce battery costs in consumer electronics.
Researchers at MIT have developed a continuous manufacturing process to produce long strips of high-quality graphene. The team's results are the first demonstration of an industrial, scalable method for manufacturing high-quality graphene suitable for membrane applications.
Researchers from MIPT have created biosensor chips based on copper and graphene oxide, achieving unmatched sensitivity. The innovative design enables compact devices compatible with microelectronics technology, opening up new avenues for bio-sensing applications.
Researchers found that recovering gold, copper and other metals from e-waste is more cost-effective than obtaining them from mines. The study estimated that urban mining could save up to 13 times the cost of traditional mining methods.
The MAJORANA DEMONSTRATOR experiment has successfully shielded a sensitive detector array from background radioactivity, critical to developing a future ton-scale experiment. This achievement aims to study the nature of neutrinos and their role in explaining the universe's matter-antimatter imbalance.
Researchers aim to improve computer chip components with new materials and designs. The NEW LIMITS center will develop ultra-thin 2-D materials to boost transistor performance while maintaining smaller size.
Scientists have discovered a new method to trigger chemical reactions using tiny diamond anvils, which can break bonds and trigger electron transfers without heat or solvents. This breakthrough could lead to more precise and environmentally friendly chemistry.
A new composite material made from antibacterial copper nanoparticles has shown excellent antibacterial resistance and durability. The material was tested on cotton and polyester fabrics, which showed strong resistance to bacterial infections even after being washed multiple times.
Researchers at INRS develop a hydrometallurgical process to decontaminate treated wood waste, removing over 90% of contaminants. The process is environmentally friendly and cost-effective, diverting wood waste from landfills and incineration.
Researchers have identified the protein SLC25A3 as the copper carrier into mitochondria, where it plays a crucial role in energy conversion. This discovery has implications for understanding metabolic diseases related to copper transport and energy production.
A new method has been developed for synthesizing alkyl amines using photocatalysis alongside copper catalysis, overcoming the challenge of alkyl group synthesis. The approach allows for high selectivity and compatibility with functional groups, and can be carried out at ambient temperatures.
Researchers have developed a 3D temperature-based model to understand the CGDS film-growing process. The model connects particle impact velocity, energy transformation, and temperature rise in three dimensions, predicting how the average temperature of the particle impact zone will rise and subside.
Researchers have discovered the molecular processes that allow bacteria to extract valuable trace elements from heavy metal compounds without poisoning themselves. The process results in the formation of tiny gold nuggets.
Research at the University of Illinois found that copper hydroxychloride improves growth performance and reduces diarrhea in weanling pigs. The supplement also shows less frequent and severe diarrhea, with improved final body weight and daily feed intake.
Researchers at OIST have developed a simple way to create copper molecular wires of different lengths by adding or removing copper atoms one by a time. This breakthrough could lead to the creation of miniature computing devices and practical applications in microelectronics.
Researchers recreate ancient copper alloy colours using colour charts, shedding light on the importance of aesthetics in prehistoric metal-making. The study reveals that early tin bronzes may have had a distinctive golden hue, driven by demand for an 'exotic' colour.
In diabetes, copper excess hinders angiogenesis, leading to impaired blood flow and increased risks of heart attacks and nerve death. Researchers are exploring ATP7A's therapeutic potential to restore healthy copper balance and improve vascular repair functions.
Researchers have proven the effectiveness of copper nanoparticles as a catalyst for organic synthesis reactions, which is an ideal alternative to toxic heavy metal catalysts like palladium. The use of copper nanoparticles offers numerous benefits, including lower costs, improved selectivity and yields, and recyclability.
A recent study published in Scientific Reports has revealed that ancient Egyptian scribes used carbon-based inks containing copper, a previously unidentified element. The analysis of 2,000-year-old papyri fragments found consistent composition across different geographical regions and time periods.
A recent study found that nano-copper azole combinations cause significant harm to estuarine benthic communities. The research highlights the need for better understanding of nanomaterial stress on these ecosystems.
Scientists from Boston College and Harvard have successfully created a copper iridate metal oxide that meets the Kitaev model's standards, enabling a chemical entity known as a 'spin liquid' with free-flowing properties. The material's unique honeycomb structure disrupts natural magnetic order, producing geometric frustration.
Researchers at Rice University developed nanotube fiber antennas that match the performance of traditional copper antennas but weigh significantly less. The flexible fibers offer practical advantages for aerospace and wearable electronics applications, where weight and flexibility are crucial factors.
Researchers have found that crystalline tungsten exhibits anisotropic resistivity, with smaller resistivity in certain orientations. The study's findings demonstrate the potential for tungsten to reduce nanowire resistance and may pave the way for new materials to replace copper interconnects.
A team of Berkeley Lab scientists has discovered a critical role of nanoparticle transformation in converting carbon dioxide into multicarbon fuels and alcohols. The copper-based electrocatalyst operates at high current density with a record low overpotential, making it more efficient than existing catalysts.
The Technical University of Munich has optimized graphene growth through chemical vapor deposition (CVD), creating highly pure and stable crystals. The breakthrough allows for mass production of graphene, which can be used in various applications such as electronics, displays, and electrodes.
Chemical analysis of ancient pottery from Monte Kronio in Sicily reveals the presence of tartaric acid and sodium salt, characteristic of winemaking processes. The discovery provides a new perspective on the economy of ancient Italy, challenging traditional views on wine production.
Engineers at PPPL designed and delivered new pole shields to protect magnets in neutral beam injectors, increasing their lifespan. The redesigned parts will withstand higher heat loads and enable more efficient fusion reactions.
Researchers at Purdue University have discovered a new reaction mechanism for zeolite catalysts that can convert nitrogen oxides more efficiently, reducing emissions of smog-causing pollutants. This breakthrough could lead to the development of better catalyst designs for pollution control systems in diesel engines.
A team of international archaeologists has re-examined a c. 8,500-year-old by-product from metal smelting and found conclusive evidence of an incidental copper firing event. The discovery provides new insights into the origins of metallurgy in the Near East.
A 62-year-old man developed copper deficiency myelopathy (CDM) due to excessive zinc intake from denture fixative. The condition caused numbness, pain, and weakness in his legs, leading to complete loss of feeling.
A team of researchers has discovered that copper and other metals can never form perfectly flat nanoscale films due to grain rotation. This discovery has significant implications for designing materials with improved electrical, thermal, and mechanical properties.
Researchers have successfully grown large sheets of monolayer single-crystal graphene, overcoming technical challenges to achieve a 5 x 50 cm2 sheet in just 20 minutes. The low-cost method has the potential to expand graphene's usability and enable its use in flexible circuits.
Researchers at the University of British Columbia developed a smart surface that can repel and absorb liquids, controlled by applying electric potential. The copper-based surface exhibits rapid and reversible changes in wetting behavior, making it suitable for various industrial and consumer applications.
Researchers are using imaging capabilities to explore how copper affects plant fertility, which could provide insights into breeding plants for better performance in marginal soils. The study aims to characterize plant proteins controlling copper uptake and distribution to develop plant cultivars adapted to low-copper soils.
E. coli bacteria hijack trace amounts of copper in the body to fuel growth and reproduce, a finding that could lead to new treatments for hard-to-treat UTIs. The 'nutritional passivation' strategy involves binding to metals like nickel, cobalt, and chromium to bring in controlled amounts of essential nutrients.
Researchers at RIT are working on developing more efficient, durable and cost-effective carbon nanotube technology for electronic components. The project aims to create affordable carbon wiring with electrical properties competitive with metal wiring.
Scientists have found evidence for a new type of electron pairing that may unify the concept of high-temperature superconductivity. Orbital-selective electron pairing has been observed in an iron-based material, suggesting that dissimilar electronic characteristics hold the key to commonality.
The discovery provides insight into the society and copper production in the Timna region during the time of David and Solomon. The wool and linen pieces suggest a deeply hierarchical society dependent on long-distance trade to support its infrastructure.
A recent discovery by Stanford University scientists could lead to a new, more sustainable way to make ethanol without corn or other crops. The technology uses three basic components: water, carbon dioxide and electricity delivered through a copper catalyst.
A team of researchers from Caltech and Berkeley Lab found that tiny amounts of oxygen beneath the copper catalyst's surface play a critical role in activating carbon dioxide for conversion to ethanol. The discovery sheds light on the atomic-level details of the reaction, enabling scientists to predict ways to improve efficiency.
A team of researchers used X-ray experiments and theoretical models to study the conversion of carbon dioxide into liquid fuels using copper catalysts. The findings revealed that oxygen atoms embedded near the surface of copper had a significant impact on the reaction, leading to more efficient reactions.
A simple copper complex has been found to shut down the deadly botulinum neurotoxin, which causes paralysis and death. The discovery was made by scientists at Scripps Research Institute using a triazole compound provided by Nobel laureate K. Barry Sharpless.
Researchers have pinpointed a common protein abnormality, SOD1 fingerprint, in Parkinson's disease brains, suggesting a new target for therapies that improved ALS outcomes. The finding may lead to substantial improvements in motor function and survival time for Parkinson's patients.
Researchers at the University of Illinois have synthesized carbon nanotube textiles that exhibit high electrical conductivity and extreme toughness, making them suitable for a range of applications in flexible electronics
Researchers from the University of Cambridge and beyond develop a new type of material that uses rotatable molecules to emit light faster than ever before. This breakthrough could lead to more power-efficient, brighter, and longer-lasting TVs, smartphones, and room lights.
Researchers from Brookhaven National Laboratory have identified the active site in a commonly used catalyst for making methanol from CO2. They found that copper zinc oxide should give the best results, with a synergy between copper and zinc oxide accelerating the chemical transformation.
A global research team warns of severe mineral supply constraints due to lack of international coordination on exploration investment efforts and geological data sharing. The shortage could lead to rising prices and critical shortages of essential resources, including technology minerals and base metals.
Scientists at Université de Genève studied over 100,000 combinations to establish a model predicting the amount of copper present in deposits. The researchers found that factors such as magma depth and duration determine the quantity of copper, with optimal conditions ranging from 20 km depth and 2 million years injection time.
Researchers at Helmholtz Institute Freiberg for Resource Technology are exploring the use of bioactive substances derived from bacteria to extract copper and molybdenum from ores in a more environmentally sustainable way. The goal is to increase metal yield while reducing chemical usage and waste.
Researchers at the University of Illinois have developed superionic solid nanoclusters that could replace liquid electrolytes in lithium-ion batteries. The nanoclusters' unique structure enables ions to move through them like a liquid, improving thermal and mechanical stability.
Researchers used 'resurrection ecology' to revive and study Daphnia, a freshwater crustacean. They found that sensitivity to copper and cadmium increased as heavy metal levels rose in lakes, challenging evolutionary theory.