Scientists on Long Island are preparing to move a 50-foot-wide electromagnet 3,200 miles over land and sea to its new home at the U.S. Department of Energy's Fermi National Accelerator Laboratory in Illinois. The trip, starting at Brookhaven National Laboratory, is expected to take more than a month.
Waste from textile and paint industries often contains organic dyes such as methylene...
Electrolysis is often used to produce hydrogen that can be used for a storable fuel....
Scientists on Long Island are preparing to move a 50-foot-wide electromagnet 3,200...
Improved methods for breaking down cellulose nanofibers are central to cost-effective biofuel production and the subject of new research from Los Alamos National Laboratory and the Great Lakes Bioenergy Research Center. Scientists are investigating the unique properties of crystalline cellulose nanofibers to develop novel chemical pretreatments and designer enzymes for biofuel production from cellulosic—or non-food—plant derived biomass.
Researchers at Chalmers Univ. of Technology have found an effective solution for collecting sunlight for artificial photosynthesis. By combining self-assembling DNA molecules with simple dye molecules, the researchers have created a system that resembles nature's own antenna system.
Researchers at the Univ. of New South Wales have proposed a new way to distinguish between quantum bits that are placed only a few nanometers apart in a silicon chip, taking them a step closer to the construction of a large-scale quantum computer.
A magnetic phenomenon newly discovered by Massachusetts Institute of Technology researchers could lead to much faster, denser and more energy-efficient chips for memory and computation. The findings could reduce the energy needed to store and retrieve one bit of data by a factor of 10,000.
Researchers working to design new materials that are durable, lightweight and environmentally sustainable are increasingly looking to bone for inspiration. While researchers have come up with hierarchical structures in the design of new materials, going from a computer model to the production of physical artifacts has been a persistent challenge. Now researchers have developed an approach that allows them to turn their designs into reality.
Researchers at Rice Univ. have come up with a new way to boost the efficiency of the ubiquitous lithium-ion battery by employing ribbons of graphene that start as carbon nanotubes. Proof-of-concept anodes built with graphene nanoribbons and tin oxide showed an initial capacity better than the theoretical capacity of tin oxide alone.
Cheaper clean-energy technologies could be made possible thanks to a new discovery. A Penn State Univ. research team has found that an important chemical reaction that generates hydrogen from water is effectively triggered—or catalyzed—by a nanoparticle composed of nickel and phosphorus, two inexpensive elements that are abundant on Earth.
Lawrence Livermore National Laboratory researchers, for the first time, have created movies of irreversible reactions that occur too rapidly to capture with conventional microscopy. The team used multiframe, nanosecond-scale imaging in the dynamic transmission electron microscope to create movies of the crystallization of phase-change materials used for optical and resistive memory.
Light-emitting diodes, or LEDs, are the most efficient and environmentally friendly light bulbs on the market. But they come at a higher up-front price than other bulbs, especially the ones with warmer and more appealing hues. Researchers at the Univ. of Washington have created a material they say would make LED bulbs cheaper and greener to manufacture, driving down the price.
Sandia National Laboratories researchers want airports, border checkpoints and others to detect homemade explosives made with hydrogen peroxide without nabbing people whose toothpaste happens to contain peroxide. That’s part of the challenge faced in developing a portable sensor to detect a common homemade explosive called a FOx mixture, made by mixing hydrogen peroxide with fuels.
In findings that could help overcome a major technological hurdle in the road toward smaller and more powerful electronics, an international research team involving Univ. of Michigan engineering researchers, has shown the unique ways in which heat dissipates at the tiniest scales.
Wonder material graphene can be made magnetic, and its magnetism can be switched on and off at the press of a button. This opens a new avenue towards electronics with very low energy consumption. In a report published by a Univ. of Manchester team shows how to create elementary magnetic moments in graphene and then switch them on and off. This is the first time magnetism itself has been toggled.
Space scientists from the Univ. of New Hampshire and the Southwest Research Institute report that data gathered by NASA’s Lunar Reconnaissance Orbiter show lighter materials like plastics provide effective shielding against the radiation hazards faced by astronauts during extended space travel. The finding could help reduce health risks to humans on future missions into deep space.
Using star-shaped block co-polymer structures as tiny reaction vessels, researchers have developed an improved technique for producing nanocrystals with consistent sizes, compositions and architectures—including metallic, ferroelectric, magnetic, semiconductor and luminescent nanocrystals. The technique relies on the length of polymer molecules and the ratio of two solvents to control the size and uniformity of colloidal nanocrystals.
Rice Univ. researchers have for the first time detailed the molecular mechanism that makes a particular combination of cement and polymer glue so tough. The theoretical research led to a fine picture of how hydrogen bonds control the properties of hybrid organic-inorganic materials. The finding has implications for understanding the interface bonding that is often a roadblock to improved composite properties.
For more than a decade, scientists have suspected that hairpin-shaped chains of micro-RNA regulate wood formation inside plant cells. Now, scientists at North Carolina State Univ. have found the first example and mapped out key relationships that control the process. The research describes how one strand of micro-RNA reduced by more than 20% the formation of lignin, which gives wood its strength.
Scientists at Ames Laboratory have discovered a new family of rare-earth quasicrystals using an algorithm they developed to help pinpoint them. Quasicrystalline materials may be found close to crystalline phases that contain similar atomic motifs, called crystalline approximants. And just like fishing experts know how to hook a big catch, the scientists used their knowledge to hone in on the right spot for their discovery.
The research team of Ulsan National Institute of Science and Technology paved a new way to affordable fuel cells with efficient metal-free electrocatalysts using edge-halogenated graphene nanoplatelets. The research team, for the first time, reportedly synthesized a series of edge-selectively halogenated graphene nanoplatelets by ball-milling graphite flake in the presence of chlorine, bromine or iodine, respectively.
For the first time, scientists have mapped the structure of a metallic glass on the atomic scale, bringing them closer to understanding where the liquid ends and the solid begins in glassy materials. A study led by Monash Univ. researchers has used a newly developed technique on one of the world’s highest-resolution electron microscopes to understand the structure of a zirconium-based metallic glass.
Scientists from SLAC National Accelerator Laboratory and Stanford Univ. have used finely tuned x-rays at the Stanford Synchrotron Radiation Lightsource to pin down the source of a mysterious magnetism that appears when two materials are sandwiched together. Why is this mysterious? Neither material shows a hint of magnetism on its own.
A new study by researchers at Univ. of California, Santa Barbara provides clues into the understanding of the behavior of the charged molecules or particles in ionic liquids. The new framework may lead to the creation of cleaner, more sustainable and nontoxic batteries, and other sources of chemical power.
The potential energy available via solar power might seem limitless on a sunny summer day, but all that energy has to be stored for it to be truly useful. If you see a solar panel on a rooftop, a bulky battery or supercapacitor is hidden just out of sight, receiving energy from the panel through power lines. However, that's a storage method that doesn't scale well for solar-powered devices with no space for a battery pack.
Innovation in liquid chromatography instrument design and column technology over the last decade has led to substantial improvements in chromatographic throughput and resolution. This has been achieved by enabling the system to achieve pressures up to 15,000 psi, reducing the system contributions to peak broadening, and utilizing well-packed columns containing sub-2-micron particles.
New ultrathin, planar, lightweight and broadband polarimetric photonic devices and optics could result from recent research by a team of Los Alamos National Laboratory scientists. The advances would boost security screening systems, infrared thermal cameras, energy harvesting and radar systems.
Physicists at the U.S. Dept. of Energy's Ames Laboratory have discovered surprising changes in electrical resistivity in iron-based superconductors. The findings offer further evidence that magnetism and superconductivity are closely related in this class of novel superconductors.