Articles tagged with Metals
Researchers at Princeton University have developed a simple and economic way to nearly triple the efficiency of organic solar cells using a nanostructured metal film called PlaCSH. The new technology also shows promise for increasing the efficiency of conventional inorganic solar collectors like silicon panels.
Researchers at Georgia Tech developed a new technique for connecting multiple shells of multi-walled carbon nanotubes to metal terminals using electron beam-induced deposition. This method reduces resistivity by 10-fold, making it suitable for integrating carbon nanotubes in conventional devices. The technique also has potential applic...
A recent study published in The Lancet found that hip resurfacing implants failed at a higher rate in women compared to men, particularly those with smaller head sizes. In contrast, men with larger femoral heads experienced comparable implant success rates to those who underwent total hip replacement.
A research team at Intel Corp. has developed a long-lasting ultrahigh-density probe storage device by coating probe tips with a thin metal film, reducing wear and increasing the device's lifetime to over 8 kilometers. The device features an array of 5,000 ultrasharp probes that write tiny bits of memory as small as a few nanometers.
Researchers developed a method to measure mercury and other toxic metals in fluids using nano-velcro, which can detect methyl mercury at record-breaking accuracy. The device is cheap, easy to use and may lead to safer foods on the dinner table.
University of Alberta medical scientists have made a groundbreaking discovery in understanding the structure of molybdenum, a critical metal in human health. The research reveals two forms of the molecule with distinct functions, providing new insights into diseases such as metabolic and respiratory disorders.
A study examined the long-term safety of two different types of drug-eluting stents, finding no significant difference in stent thrombosis rates over three years. However, differences emerged when dual antiplatelet therapy was used low, suggesting its importance for patients with these stents.
Researchers have developed a computational model that accurately simulates the interactions between flue gases and metal-organic frameworks (MOFs) for capturing greenhouse gases. The model enables the prediction of properties of open-site MOFs, which could dramatically lower energy costs in coal-burning power plants.
Researchers found that people agree more with claims when a photo is displayed, regardless of its accuracy. This phenomenon, known as 'truthiness,' has important implications for situations where people are influenced by visual cues.
Theoretical physicist Dima Shepelyansky found that energy flows from large to small scales can be prevented under specific conditions, similar to the way electron currents are stopped in disordered solids. This discovery links chaos theory and turbulence, highlighting a phenomenon where energy threshold plays a crucial role.
Scientists have developed a design that allows electronics to bend and stretch up to 200%, overcoming the major obstacle of rigid electronics. This breakthrough enables medical monitoring devices to track vital signs and transmit them wirelessly, opening up new possibilities for patient care.
Researchers at the University of Miami introduced a breakthrough theory that explains high-temperature superconductivity. The team found that specific quantum effects can generate superpositions of individual states, providing an effective glue to repair the system and allow superconducting behavior to emerge.
Harvard University researchers invent a way to keep metal surfaces free of ice and frost using ultra slippery anti-ice and anti-frost surfaces. The technology, called SLIPS, prevents ice sheets from developing on surfaces and allows for easy removal of ice with tilting or slight agitation.
University of Florida physicists achieved a groundbreaking 8.6% power conversion efficiency from a graphene solar cell created in their lab by chemically treating the graphene with trifluoromethanesulfonyl-amide. This breakthrough could make graphene solar cells a contender in the market if production costs are kept low.
Researchers created a new electronic memory technology using nanodots, achieving faster data writing and erasing than mainstream charge-storage memory products. The system uses discrete silicon nanodots to store and remove charges, enabling quick and simple data operations.
Researchers at New York University have developed a method to visualize the internal workings of lithium-ion batteries using MRI, enabling diagnostic and testing capabilities. This technique can identify build-up of deposits on electrodes, which can lead to overheating and failure, allowing for improved battery performance and safety.
A new MRI technique allows for non-invasive examination of battery internal workings, enabling testing of various designs and materials under normal operating conditions. This method has the potential to improve battery performance and safety by visualizing build-up of lithium metal deposits on electrodes.
A study of 46 retrieved metal-on-metal total hip replacements found common damage patterns, including scratches and wear patches. The researchers aim to understand the mechanisms behind these failures and develop new implant designs to reduce wear and corrosion.
Research found re-blockage rates to be low in both stented and surgically-opened carotid arteries, with less than 7% of patients developing repeat blockages after two years. The study suggests that both procedures are durable and equivalent in terms of re-blockage rates.
Researchers at the University of Illinois developed a method to chemically etch patterned arrays in gallium arsenide, used in solar cells and lasers. The new technique, called metal-assisted chemical etching (MacEtch), is faster and less expensive than traditional dry etch methods.
A drug-coated balloon inserted into a narrowed bare metal stent restores blood flow by reducing scar tissue development, as effectively as drug-eluting stents. The treatment reduces the body's reaction to a metal jacket in arteries, offering an alternative to traditional stents.
Researchers found two clouds of primordial gas that match theoretical predictions, with a composition of mostly hydrogen and helium. This discovery challenges our understanding of how metals are distributed in the universe and provides new constraints on the modern cosmological explanation for element origins.
The DEB-AMI trial found that drug-eluting balloons with bare metal stents did not meet the primary endpoint of reduced late lumen loss compared to drug-eluting stents. The study also showed that these procedures may induce more pronounced morphological changes, resulting in inferior angiographical and clinical outcomes.
A 12-week yoga program improved back function in patients with chronic or recurrent low back pain, but had similar effects on back pain and general health. The American College of Physicians also recommends assessing VTE risk and prescribing heparin to prevent venous thromboembolism in hospitalized patients.
A team of astronomers has discovered three new planets and a mystery object orbiting giant, dying stars. The research provides insights into the evolution of planetary systems around these stars and how metal content influences their behavior.
Researchers at KIT develop a new concept for rechargeable batteries based on fluoride shuttles, increasing storage capacity by several factors. The fluoride-ion battery offers improved safety properties without lithium, with potential applications in mobile devices.
Researchers found that people with previous ankle injuries tend to move their hips and knees differently when landing, which may contribute to re-injury. The study provides new insights into the role of joint movements in ankle sprains.
Researchers from the University of Notre Dame have developed a graphene-based modulator that significantly expands the terahertz signal's modulation range to over 90 percent. This breakthrough replaces traditional metal gates with graphene, enabling more versatile applications in communications, medical imaging, and chemical detection.
A new study reveals that schools with large minority populations are more likely to implement metal detectors, despite weak correlations with actual crime rates. In contrast, poverty is a significant predictor of security measures in elementary and middle schools, potentially contributing to early disparities in educational achievement.
Researchers at Syracuse University have developed tunable nano-suspensions capable of capturing specific wavelengths of sunlight, paving the way for improved solar energy efficiency and smart glass technologies. By manipulating the composition of the suspension, scientists can achieve optimal optical properties.
Researchers at Berkeley Lab have demonstrated a technique to control the curved trajectories of Airy beams in real-time, enabling fast-as-light communication systems and optoelectronic devices. This breakthrough uses plasmonic Airy beams to manipulate surface plasmon polaritons, opening doors to new technologies in nano-photonics, biol...
A University at Buffalo team proposes using sodium to convert hydrogen into a superconducting metal, which could improve power transmission efficiency. The researchers used an open-source computer program to find suitable sodium polyhydrides that become metallic at lower pressures than previously thought.
Researchers have demonstrated the first true nanoscale waveguides for next-generation on-chip optical communication systems, enabling ultrafast data transfer. The use of hybrid plasmon polaritons in a metal-insulator-semiconductor device reduces optical losses and increases signal confinement.
A new study developed by McGill Professor Roussos Dimitrakopoulos has created more accurate mine planning models that take into account uncertainty in the supply of minerals. This results in higher return on investment for mining companies while increasing metal production from the same asset.
Researchers have developed a novel transparent flexible woven electrode for thin-film solar cells, which is more stable and cost-effective than traditional indium tin oxide (ITO)-based electrodes. The new electrode uses a woven polymer material with embedded metal wires to ensure electrical conductivity.
Scientists at nanoGUNE have successfully transmitted and focused infrared light with miniature transmission lines, enabling single molecule spectroscopy and sensitive optical detection. The technique uses tapered transmission lines to confine light down to nanometer scales.
Scientists report on a new material called nano-bricks that combines montmorillonite clay with polymer materials to create an eco-friendly, transparent coating. The coating can improve the shelf life of foods and beverages by slowing gas loss and preventing spoilage, making it a potential alternative to current packaging materials.
Researchers at Cardiff University have developed a 'sleeping Trojan horse' delivery system that enables the efficient transport of metal ions into cells, opening up new possibilities for medical imaging. This innovative approach resolves some of the difficulties associated with traditional 'Trojan Horse' techniques.
Despite minimum recycling targets, Spanish cities struggle with paper and container waste separation. Only glass meets the 60% requirement, while plastic and metal waste are far below target. The study highlights the need for more efficient collection systems to increase recycling rates.
Studded winter tires grind away at road surfaces, generating dust particles linked to inflammation and diseases such as heart disease. Researchers found specific protein changes in cells related to road dust exposure, which could help understand the link between pavement dust and heart disease.
A study by the University of California, San Francisco found that increased BPA exposure in women can lead to a 50% decline in fertilized eggs during IVF treatment. The researchers recommend reducing BPA levels through lifestyle and dietary modifications to minimize reproductive health risks.
Researchers at Washington University in St. Louis have developed a new metal complex that can convert methane into ethane, a crucial step towards building longer-chain hydrocarbons as alternative energy sources. This breakthrough could pave the way for a cleaner and more sustainable method of producing fuels from greenhouse gases.
Scientists model vacuum breakdown to understand its implications for applications, including particle accelerators and fusion reactors. A new model reveals that the breakdown arc is triggered by an electric field tearing apart the metal surface, leading to extremely damaging effects.
By using glancing-angle deposition, researchers can create a forest of nanorods on a target surface, which offers a range of potential applications including nanosensors and fuel-cell cathodes. This technique extends shadowing effects to higher temperatures, leading to larger-diameter nanorods with unique properties.
Researchers at Rice University have developed a nano antenna that can concentrate light by a factor of 1,000. By measuring the electrical current flowing between two gold tips separated by a nanoscale gap, they were able to determine the amplification of light intensity in the gap.
Researchers from Berkeley Lab and UC Berkeley have developed a novel approach to transformation optics, allowing for the manipulation of near-field optical waves on uneven surfaces. This breakthrough enables the design of plasmonic devices such as beam splitters, shifters, and directional light emitters.
A study published in the World Journal of Gastroenterology investigated the effectiveness, safety, and outcomes of two popular esophageal metal stents: Ultraflex and Choostent. The results showed that both types of stents provided good palliation of dysphagia in patients with inoperable esophageal carcinoma.
Researchers at Iowa State University have designed a new type of transmission pole that can resist extreme loads and prevent cascading failures. The hinged poles, which are cheaper and easier to install than traditional structures, can be repaired rather than replaced, providing better and more reliable power service.
Researchers report that patients who undergo non-cardiac surgery within six weeks of receiving a coronary stent are more likely to experience reduced blood flow to the heart, heart attack, and death. The risk is higher for those with recent heart attacks.
Bionanotechnology at Florida State University has significant applications in medicine, manufacturing, and more. The institution's cutting-edge research utilizes Dip-Pen Nanolithography to create biometamaterials with potential for diagnosis and analysis.
Therapeutic swings commonly used for autism-spectrum disorders shed metallic particles into the eyes of children, causing uncommon but preventable eye injuries. The study highlights the importance of wearing protective eyewear or modifying swing apparatus to prevent this risk.
A European research team has created a method for locating plastic anti-personnel mines by analyzing temperature variations in the ground. The new system generates 3D thermal maps, reducing calculations by 34 times compared to other systems.
Researchers at the University of Rochester have discovered a method to turn metals black using a high-intensity laser burst, allowing them to detect electromagnetic radiation in the terahertz range. This technology has the potential to enable unprecedented diagnoses of diseases by detecting molecular properties of diseased tissues.
A new method for breaking carbon-hydrogen bonds has been developed, revolutionizing the synthesis of natural products and therapeutic drugs. The technique, called 'layman chemistry,' uses common table salt and inexpensive materials, reducing waste and complexity.
Scientists at the University of Washington and North Carolina have made a breakthrough in converting methane to methanol, a liquid that can be transported easily. This discovery could lead to more efficient and environmentally friendly production of chemicals and fuels.
Researchers calculate that adding small amounts of lithium can convert hydrogen to a metal at significantly lower pressures. The study predicts the formation of metallic hydrogen compounds under experimentally accessible pressures.
A six-year study by surgeons at the University of Maryland Medical Center found that minimally invasive mitral valve repair is safe and effective, with a low risk of complications. The study showed that 99% of repaired valves were working properly and all patients survived with minimal hospital stay.
Researchers at the University of Cambridge and Birmingham have successfully created a new particle called spinon and holon when electrons are confined to narrow wires. This experiment has significant implications for the development of quantum computers, which could lead to a new computer revolution.
Prof. Noam Eliaz's electrochemical coating process improves implant functionality, longevity, and integration into the body. The new coating reduces materials failure by 33% and has potential to spur new bone growth.
Researchers have discovered that female fans of Japanese animation are remaking male-centric anime videos into romantic versions, developing skills in storytelling and feminist critique.