Articles tagged with Materials Testing
Researchers at KAUST have developed a new class of oriented mixed-matrix metal-organic framework (MMMOF) membrane that selectively removes detrimental gases like H2S and CO2 from natural gas. The membrane demonstrates far better separation efficiency compared to conventional methods.
Recent papers in ACS Environmental Au explore the impact of aerosol acidity in the southeastern U.S. and the effects of environmental films on native ecosystems. The journal also investigates electrospun nanofibrous membranes for controlling airborne viruses.
An international team of researchers has observed a unique 'fruitcake' structure in an organic polymer, revealing variations in hardness at the nanoscale. This discovery could lead to the development of next-generation microelectronic and bioelectronic devices with improved flexibility and biocompatibility.
Researchers have developed a single-cell PV design integrated with nonreciprocal optical components to provide 100-percent reuse of emitted radiation, breaking the Shockley–Queisser limit. This breakthrough enables a quasimonochromatic radiation converter to reach the theoretically maximum Carnot efficiency.
Researchers developed a hot-carrier multijunction solar cell that maintains high conversion efficiency with nonoptimal materials, expanding the scope of candidate designs. The novel architecture showed superior resilience to design imperfections, widening the range of suitable materials and operating conditions.
West Virginia University researchers are exploring the symbiotic relationship between Miscanthus x giganteus and its microbes to improve the crop's resilience in unpredictable climates. The goal is to determine the best way to manage the plant on marginal soil, which could help restore damaged soils and mitigate climate change.
Lab-grown plant material can be precisely controlled for physical and mechanical properties, such as stiffness and density. The researchers use a 3D bioprinting process to grow custom shapes and sizes of plant material.
Researchers have developed a new degradable polymer material with improved biodegradability, outperforming existing bioplastics like PLA or PCL. The material can degrade by over 70% in a week, making it suitable for applications such as thermosensitive nanoparticles for medicine administration.
McGill University researchers have created a class of cellular metamaterials that can flat-fold and lock into positions that remain stiff across multiple directions. These materials offer unprecedented properties for deployable structures such as submarines, robots, and low-volume packaging.
Scientists at the University of Texas at Austin have developed a low-cost gel film that can pull water from the air in dry climates, producing up to 6 liters of water per day. The film uses renewable cellulose and konjac gum, making it an affordable solution for communities struggling with water shortages.
Researchers developed flexible, porous nitrogen dioxide sensors that can be attached to skin and clothing for continuous monitoring. The sensors have potential applications in healthcare, environmental monitoring, and military use, offering a non-invasive alternative to traditional methods.
Researchers have discovered that 90% of known crystalline structures contain at least one topological property, and more than 50% exhibit some sort of topological behavior. The newly identified materials are stored in a freely accessible database, allowing scientists to quickly search for materials with robust electronic properties.
A team of scientists discovered that over half of known 3D materials in nature exhibit at least one topological state, challenging the long-held idea that these materials are rare. The study also introduces a new concept called 'supertopological' and makes its data freely available to researchers.
Researchers from Korea Maritime and Ocean University have developed a way to synthesize high-performance functionally graded materials with minimized defects. By controlling the mixing gradient of component materials, they improved mechanical properties and eliminated interfacial cracks.
A team from the University of Missouri is using artificial intelligence to accelerate the discovery process in materials science. By integrating machine learning algorithms and AI into traditional laboratory processes, they aim to reduce time and cost while increasing the rate of material development. Associate Professor Derek T. Ander...
Scientists at UMass Amherst developed a new theory to predict how double-gyroid networks form in polymer superstructures. The theory reveals the hidden geometry allowing polymers to assume this complex shape.
Researchers at the University of Tokyo have developed a waterproof coating called Choetsu that adds strength to paper, making it a viable alternative to plastic. The coating, made from safe and low-cost chemicals, also has photocatalytic activity, protecting against dirt and bacteria.
Researchers developed a strong, water-resistant wood glue using glucose and citric acid for plywood. The adhesive meets China's standard requirement and is more energy-efficient than traditional adhesives.
Energy researchers have invented a device that electronically converts one metal into behaving like another to use as a catalyst for speeding chemical reactions. The invention opens the door for new catalytic technologies using non-precious metal catalysts, potentially improving efficiency and sustainability in various applications.
Researchers have discovered that lunar soil can convert carbon dioxide into oxygen and fuels, paving the way for sustainable space exploration. The team proposes an 'extraterrestrial photosynthesis' strategy using lunar soil to electrolyze water and produce desired products.
Researchers have discovered a unique mechanism called 'momentum-dependent spin splitting' that allows for strong spin currents and efficient magnetic switching. This discovery could lead to advances in magnetic random-access memory technologies.
Scientists have developed a machine learning algorithm that can accurately predict the lifetimes of different battery chemistries using as little as a single cycle of experimental data. The technique could reduce costs and accelerate the development of new battery materials, enabling researchers to quickly evaluate and test multiple ma...
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 have created a wearable sensor for plant leaves that wirelessly transmits data to a smartphone app, allowing for early detection of water loss and remote monitoring of drought stress. The device has the potential to save resources and increase yields by providing reliable data on plant health.
Researchers are developing novel graphite coatings with the goal of reducing energy consumption and equipment failure in industrial conveyor systems. The new coatings will be thinner, more durable, and environmentally superior to traditional lubricants.
Researchers at Lehigh University developed a new method to accurately gauge healing progress of bone fractures using 3D models. The model identifies the cutoff point between soft tissue and bone, allowing for more precise predictions of bone behavior during the healing process.
Researchers from Tokyo Metropolitan University found that falling beds of sand and melting gelatin exhibit similar destabilization behavior, characterized by fingering instabilities and fluidized interface regions. This study provides insights into the macroscopic physical behavior of granular materials and gels under gravity.
Researchers have found that Bronze Age daggers were used to process animal carcasses, including slaughtering livestock and butchering carcasses. The discovery was made using a new method that extracted organic residues from the daggers, revealing micro-residues of collagen and associated bone, muscle, and tendon fibres.
Researchers developed a new way to apply antireflective coatings to 3D printed micro-optical systems, reducing light losses and improving imaging quality. The low-temperature coating technique can be used for applications such as miniature fiber endoscopes and virtual reality devices.
Researchers at UMass Amherst have developed a new class of material called pZC that can withstand acidic stomach conditions and dissolve in the small intestine. This innovation could revolutionize oral medication delivery, increasing the number of medications that can be taken orally.
Researchers are developing innovative ways to reuse automotive glass, crushing it into small pieces and purifying the polyvinyl butyral (PVB) for industrial use. This approach aims to reduce waste and conserve resources as the demand for automotive glass continues to grow.
Researchers at Nanyang Technological University, Singapore have successfully used recycled glass as a replacement for sand in 3D printing concrete mixtures. The new method offers a more environmentally sustainable way of building and construction, reducing waste and pollution.
Scientists at the University of Oxford have developed an 'optomemristor' device that facilitates three-factor learning and emulation of biological computations, making it possible to perform complex machine learning tasks. The device uses both light and electrical signals to interact and consume very little energy.
Researchers successfully measured the wettability of graphene and other 2D materials using VSFG, a surface-selective tool that connects macroscopic and molecular-level properties. The study found that graphene's 'wetting transparency' diminishes with increasing layers, becoming hydrophobic at a certain point.
Researchers at Princeton University developed a new material that combines natural inspirations with engineering innovations. The porous objects feature spinodal microstructures, allowing for customizable performance based on material and geometry.
The study reveals the sing saw uses a surprising effect to create its distinct tone: when curved into an S-shape, energy vibrates in a confined area producing a clear, long-lasting sound. This principle can be applied to design high-quality resonators for various applications.
Researchers have synthesized K2N6, an exotic compound containing nitrogen groups and packing explosive amounts of energy. The new material has a hexagonal structure with intermediate single and double bonds between nitrogen atoms.
Researchers have developed perovskite solar cells with improved efficiency and stability thanks to the addition of ferrocene layers. The devices can now reach 25% efficiency, approaching traditional silicon cells, and maintain over 98% of their initial performance after 1,500 hours.
Researchers have created new patented materials that can capture and release acetylene with high efficiency, outperforming existing porous materials. The flexible Metal-Organic frameworks (MOFs) offer tunable gas storage and release conditions suitable for industrial applications.
Scientists at KAUST have studied charge carrier behavior in perovskite thin films using laser pulses and terahertz radiation. They found that increased density of charge carriers narrows the energy gap for electrons to be excited by light, and charge carriers become more localized at higher densities.
Researchers will investigate the radiation resistance of wide bandgap semiconductors to develop devices for environments with significant radiation. The team aims to understand defects and their impact on device performance to achieve optimum radiation hardness.
Researchers at Terasaki Institute for Biomedical Innovation have developed a flexible, antibacterial conductive hydrogel-ePatch that accelerates wound healing with minimal side effects. The e-Patch uses silver nanowires and alginate to promote cell proliferation and migration, resulting in faster wound closure and reduced scarring.
Scientists at the University of Freiburg have developed a novel process for 3D printing small and complex components made of transparent glass. Using Glassomer materials and Computed Axial Lithography, they can create structures with thicknesses as low as 50 micrometers in just a few minutes.
Researchers subject Oreos to various tests, finding that the cream almost always separates onto one wafer, regardless of flavor or amount of filling. The team's study provides insights into the properties of yield stress fluids and offers a new approach to understanding non-Newtonian materials.
Researchers at Dartmouth have built the world's first superfluid circuit using pairs of ultracold electron-like atoms, allowing for controlled exploration of exotic materials like superconductors. The circuit enables analysis of electron movement in highly controllable settings.
Scientists have identified magic-angle twisted bilayer graphene as a promising material for high-temperature superconductivity. Researchers found that nematic order in MATBG originates from the interference between fluctuations of a novel degree-of-freedom combining valley and spin degrees.
Researchers found that left-handed chiral gold nanoparticles increased the immune response in human cells even without an antigen, leading to a 25.8% increase in vaccine efficacy. The discovery uses chirality to enhance immune responses, potentially applicable to various vaccines.
A new type of sampler using felt nibs from pens has been developed for collecting biological samples, offering longer storage life and ease of use. This technology has potential applications in space exploration and medical settings.
Researchers at Eötvös Loránd University detected smallest earthquakes in micron-scale metals, exhibiting characteristics similar to seismic events. The findings reveal a two-level structure of strain bursts and demonstrate the correlation between acoustic signals and plastic deformation.
Researchers created edible tags with fluorescent silk proteins to track medications, providing a new way for consumers to verify authenticity. The codes are readable by a smartphone app and can be ingested without causing harm.
Researchers at Penn State and UC San Diego found a new method to tune the magnetic properties of manganese bismuth telluride, enabling efficient control of lossless electrical currents. The discovery uses phonons to modify the magnetic bonding between layers, potentially leading to ultra-fast devices with reduced energy waste.
Researchers at Tohoku University and UCLA have made a breakthrough in high-voltage metal-free lithium-ion batteries using a small organic molecule, croconic acid. The battery has a strong working voltage of around 4V and a high theoretical capacity, potentially leading to more energy-dense and cost-effective batteries.
Researchers at UCF create brain-like devices that enable AI to function independently, allowing technology like robots and voice assistants to operate in remote areas or space. The devices use parallelism and in-memory computing, similar to the brain, for AI and unsupervised learning.
Kaiyuan Yang's five-year grant will focus on enhancing the reliability and security of bioelectronic implants by making them aware of and adaptive to their physical and logical contexts. The goal is to develop WBMI bioelectronics that can be deeply implanted in humans through minimally invasive injection, ingestion or through vessels.
A new analysis found that domestic dryers produce far more microfibers than washing, but using fabric conditioners and lint filters with smaller pore size can significantly reduce their release. The study suggests improving dryer design or switching to heat-pump condenser dryers as the best long-term solution.
The researchers successfully synthesized π-extended nanographene carbon nanosolenoid (CNS) material with continuous spiral graphene planes, matching the structure of Riemann surface. CNS exhibited special photoluminescence and magnetic properties, including red-shifted emission band and large thermal hysteresis.
Researchers at Nanyang Technological University in Singapore have developed a sustainable, pollen-based 'paper' that can be printed on and reused multiple times. The paper's non-toxic properties make it an attractive alternative to conventional wood-based paper, which has a significant environmental impact.
Researchers at Kyoto University have discovered a scaling law that determines high-order harmonic generation in the perovskite material Ca2RuO4. The phenomenon, which was first observed in atomic gas systems, has been found to be highly dependent on temperature and gap energy.
Researchers propose a novel pathway to realizing hot carrier solar cells, which can exceed the typical efficiency limit on solar cells. The approach involves isolating hot carriers within higher energy valleys in semiconductors, reducing energy loss to heat.
Researchers at Cornell University have developed a high-quality crystal of aluminum nitride and created an optical cavity to trap emitted light, enabling the production of a deep-ultraviolet laser with exceptional precision. The breakthrough has significant implications for various applications, including sterilization, sensing, and ph...