A painstaking study by Rice University has brought a wealth of new information about single-walled carbon nanotubes through analysis of their fluorescence. The researchers found that the brightest nanotubes of the same length show consistent fluorescence intensity, and the longer the tube, the brighter.
Vytran has expanded its GPX-3000 Series of optical fiber glass processors with the GPX-3600, a versatile, multipurpose system designed to process optical fibers with diameters as large as 1.8 mm.
Using computer simulations, a researcher has shown that an oxygen molecule is stable up to pressures of 1.9 terapascal, which is about 19 million times higher than atmosphere pressure. The result was a complete surprise, because other simple molecules like nitrogen or hydrogen do not survive such high pressures.
Invented and improved recently by the Rice University lab of Junichiro Kono, a terahertz polarizer built using carbon nanotubes is the most effective ever reported, blocking at least 99.9% of terahertz waves on demand. Prior iterations of the polarizer blocked only 30 to 50% of waves.
Researchers at the U.S. Department of Energy’s Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications.
Teams from three of the top United States aerospace corporations have spent the last year studying how to meet NASA’s sustainability goals for cleaner, more efficient aircraft. Among the requirements that prompted adventurous design work from the companies was a 50% reduction in fuel consumption and a 75% reduction in harmful emissions.
The heart's inner workings are mysterious, perhaps even more so with a new finding. Engineers at the University of Washington have discovered an electrical property in arteries not seen before in mammalian tissues. The researchers found that the wall of the aorta exhibits ferroelectricity, a response to an electric field known to exist in inorganic and synthetic materials.
Lawrence Berkeley National Laboratory researchers have discovered why a promising technique for making quantum dots and nanorods has so far been a disappointment. Better still, they’ve also discovered how to correct the problem.
An innovative, low-cost smart paint that can detect microscopic faults in wind turbines, mines, and bridges before structural damage occurs is being developed by researchers at the University of Strathclyde in Glasgow. The environmentally friendly paint uses nanotechnology to detect movement in large structures, and could shape the future of safety monitoring.
The Air Force Research Laboratory in Dayton, Ohio, has experimentally confirmed a theory by Rice University Professor Boris Yakobson that foretold a pair of interesting properties about nanotube growth: That the chirality of a nanotube controls the speed of its growth, and that armchair nanotubes should grow the fastest.
John Delaney, an attorney with experience in toxic and environmental torts and a founding member of the law firm Delany & O’Brien in Philadelphia, has recently published guide to the legal implications of nanotechnology. He pays particular attention to carbon nanotubes and nanometal oxides, and notably argues for tort reform in anticipation of potential legal actions.
Delicate and translucent as a puff of air, yet mechanically stable, flexible, and possessing very low thermal conductivity—these are the properties of a new aerogel invented in China. Made from cellulose and silica gel, the material is 99.98% air-filled pores.
Graphene is one of the wonders of the science world, with the potential to create foldaway mobile phones, wallpaper-thin lighting panels, and the next generation of aircraft. The new finding at The University of Manchester gives graphene's potential a most surprising dimension—graphene can also be used for distilling alcohol.
When gold vanishes from a very important location, it usually means trouble. At the nanoscale, however, it could provide more knowledge about certain types of materials. A recent discovery that enables scientists to replace gold nanoparticles with dummy "spacers" has allowed scientists to create materials with never-before-seen structures, which may lead to new properties.
Researchers from Harvard University have developed a new platform that can control single electron spins in a more coherent way than any previous solid-state system. By designing nanoscale devices that can confine single electrons, the scientists increased quantum state lifetime more than 1,000 times over than previously used materials.
High-level spectroscopy and computer simulations of specially diluted liquids are gradually revealing the long-debated structure of air-water interfaces. At RIKEN in Japan, specialized techniques such as vibrational sum frequency generation are being used to examine this medium, which is notoriously difficult to study.
The biggest challenge with hydrogen-powered fuel cells lies in the storage of hydrogen: How to store enough of it, in a safe and cost-effective manner, to power a vehicle for 300 miles? Lawrence Berkeley National Laboratory is aiming to solve this problem by synthesizing novel materials with high hydrogen adsorption capacities.
Tiny components with the ability to emit single particles of light are important for various technological innovations, such as encryption. Researchers in Germany have invented just such a component using three organic complexes groups around a central iridum atom and placed in a substrate. Induce electrical flow and photons are produced.
Researchers in the United States, for the first time, cloaked a 3D object standing in free space, bringing the much-talked-about invisibility cloak one step closer to reality. Whilst previous studies have either been theoretical in nature or limited to the cloaking of 2D objects, this study shows how ordinary objects can be cloaked in their natural environment in all directions and from all of an observer's positions.
Using the world’s most powerful X-ray laser and a piece of aluminum foil, researchers working at the SLAC National Accelerator Laboratory have created and probed a 2,000,000 C piece of matter in a controlled way for the first time.
A new catalytic process discovered by the Cardiff Catalysis Institute could unleash a range of useful new byproducts from diesel fuel production. The team has reported the use of a mixed-metal catalyst to convert decane to a range of oxygenated aromatics.
Innovative sensors have been developed that will improve the ability to spot early warning signs of corrosion in concrete. More resilient and much longer lasting than traditional corrosion sensors, they will make monitoring the safety of structures such as bridges and vital coastal defenses much more effective.
A University of Arkansas physicist and his colleagues have examined the challenges facing scientists building the next generation of materials and innovative electronic devices and identified opportunities for taking the rational material design in new directions.
Taking inspiration from the yellow fattail scorpion, which uses a bionic shield to protect itself against scratches from desert sandstorms, scientists have developed a new way to protect the moving parts of machinery from wear and tear.
Custom modifications of equipment are an honored tradition of the research laboratory. In a recent paper, two materials scientists at NIST describe how a relatively simple mod of a standard scanning electron microscope enables a roughly 10-fold improvement in its ability to measure the crystal structure of nanoparticles and extremely thin films.