Articles tagged with Metals
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.
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.
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.
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.
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.
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 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.
Physicists at the University of Texas at Austin have developed the thinnest superconducting metal layer made from lead, measuring only two atoms thick. This achievement lays the groundwork for future innovations in superconductor technologies.
Researchers at the University of Rochester have developed a metal slab that can lift liquids using capillary action, moving them at speeds faster than nature. The metal's surface structure can be controlled to direct liquid flow or even create hydrophobic surfaces that prevent germ growth.
A landmark study published in the New England Journal of Medicine found that paclitaxel-eluting stents reduce target lesion revascularization rates and binary angiographic restenosis compared to bare-metal stents. The study also showed comparable safety profiles for both types of stents.
The researchers used mechanical forces to control catalytic activity, initiating chemical reactions and creating a 'molecular ripcord' that can switch between dormant and active states. This discovery enables the creation of self-repairing materials that strengthen under mechanical stress.
Professor Geoffrey Gadd's research explores how microbes interact with metals and minerals, degrading ammunition and transforming pollutants. His work has significant implications for environmental biotechnology and nuclear decommissioning.
The study found that drug-eluting stents are safer and more effective than bare metal stents in preventing deaths and heart attacks. Over a two-and-a-half-year follow-up period, patients who received drug-eluting stents had a 25% reduction in death and a 24% reduction in heart attacks.
Researchers at Lehigh University have developed a nanoscale grating structure that can trap and release light waves at multiple locations and different frequencies. The structure, made of graded metal depths, enables the control of light waves on a chip, paving the way for applications in spectroscopy, sensing, and medical imaging.
Researchers have developed a new method to boost the efficiency of solar cells by using nanoparticles. By scattering light and improving color-specific capture, this approach could significantly improve sunlight conversion rates.
A new study published in CMAJ found that patients receiving drug eluting stents had better outcomes, including lower mortality rates, compared to those with bare metal stents. However, the study also noted an increased risk of repeat revascularization procedures or death after three years.
A study published by the Radiological Society of North America (RSNA) reports on the successful diagnosis and removal of self-inflicted foreign objects from adolescents. The minimally invasive procedure allowed for safe and precise removal of embedded objects with minimal scarring.
A team of Boston College and MIT scientists has discovered a new class of exceptionally effective catalysts that promote the powerful olefin metathesis reaction, opening up a vast new scientific platform. The new catalysts provide unprecedented control and selectivity for complex chemical reactions.
Researchers at Harvard University have demonstrated that metal nanoparticles in a periodic array can exhibit narrower spectral widths, improving the sensitivity of detecting molecules at low concentrations. By optimizing electromagnetic interactions between particles, the method can enhance spectroscopy and biosensors.
Cornell researchers develop a cost-effective method to create nanoscale devices by manipulating fluid droplets and using silicone rubber molds. The technique allows for the production of various architectures, including wires, disks, squares, triangles, and superlattices, with potential applications in computer memory and photonics.
A clinical trial showed that drug-eluting stents are more effective than bare metal stents in reducing target lesion revascularization rates by 41% and binary restenosis by 56%. The use of drug-eluting stents also demonstrated comparable safety, with a reduced risk of major adverse cardiovascular events.