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Peratech working on “nose in clothes" for wearable electronics

March 18, 2013 10:49 am | News | Comments

Touch technology company is working with the London College of Fashion, University of the Arts London to develop wearable electronics that use Peratech's QTC sensors. This years-long research project is exploring the needs base and applications for wearable technology bringing together the expertise of industry and academe in a highly creative way.

Scientists create flexible mineral inspired by deep-sea sponges

March 15, 2013 11:10 am | News | Comments

Imitating the structural elements found in most sea sponges, researchers in Germany have created a new synthetic hybrid material that is extremely flexible yet has a mineral content of almost 90%. They recreated the sponge’s spicules using natural calcium carbonate and integrated a protein of the sponge. The invention is even more flexible than its natural counterpart.

Metasurfaces to usher in new optical technologies

March 15, 2013 10:25 am | News | Comments

New optical technologies using "metasurfaces" capable of the ultra-efficient control of light are nearing commercialization. According to Alexander Kildishev, an electrical engineer and professor at Purdue University, the metasurfaces could make possible "planar photonics" devices and optical switches small enough to be integrated into computer chips for information processing and telecommunication

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Researchers create nanoscale spinning magnetic droplets

March 15, 2013 9:13 am | News | Comments

Researchers have successfully created a magnetic soliton—a nanosized, spinning droplet that was first theorized 35 years ago. These solitons have implications for the creation of magnetic, spin-based computers. Solitons are waves, localized in space, that preserve their size and momentum. They were first observed in water. Solitons composed of light have proved useful for long-distance, high-speed information transmission. But droplet solitons had never been observed in a magnetic environment, although scientists believed they could exist there.

Building stronger, greener concrete with biofuel byproducts

March 14, 2013 1:30 pm | News | Comments

Kansas State University civil engineers are developing the right mix to reduce concrete's carbon footprint and make it stronger. Their innovative ingredient: biofuel byproducts.

New gel material releases drug under patient’s pressure

March 14, 2013 10:39 am | News | Comments

A research team at the National Institute of Materials Science in Japan has recently developed a gel material which is capable of releasing drugs in response to pressure applied by the patient. Three fingers applying force to the site of the gel produces an effect for up to three days. They built the new drug from two materials already used in pharmaceuticals: a saccharide and a natural component of algae.

Organic phototransistors to help miniaturization of optoelectronics

March 13, 2013 12:55 pm | News | Comments

Phototransistors are a kind of transistors in which the incident light intensity can modulate the charge-carrier density in the channel. To date, research on organic phototransistors (OPT) has mostly focused on thin-film variants. Now, researchers in South Korea have developed high-performance OPTs that are engineered with nanoscale single-crystalline wires. The breakthrough could enable other types of device miniaturization.

Beach sand-encapsulated paraffin stores heat from the sun

March 13, 2013 10:50 am | News | Comments

The search for sustainable new materials to store heat captured from the sun for release during the night has led scientists to a high-tech combination of paraffin wax and sand.

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Surprising control over photoelectrons from a topological insulator

March 13, 2013 10:17 am | News | Comments

Electrons flowing swiftly across the surface of topological insulators are "spin polarized," their spin and momentum locked. This new way to control electron distribution in spintronic devices makes TIs a hot topic in materials science. Now scientists have discovered more surprises: contrary to assumptions, the spin polarization of photoemitted electrons from a topological insulator is wholly determined in three dimensions by the polarization of the incident light beam.

Scientists use DNA to create nano-encrypted Morse code

March 12, 2013 3:17 pm | News | Comments

Researchers at the University of Illinois at Urbana-Champaign have devised a dynamic and reversible way to assemble nanoscale structures and have used it to encrypt a Morse code message. The team started with a template of DNA origami―multiple strands of DNA woven into a tile. They “wrote” their message in the DNA template by attaching biotin-bound DNA strands to specific locations on the tiles that would light up as dots or dashes. 

Super nanowire composite solves “valley of death” riddle

March 12, 2013 3:03 pm | News | Comments

In a world first, a team of researchers from Australia, China, and the U.S. has created a super strong metallic composite by harnessing the extraordinary mechanical properties of nanowires. According to the study’s authors, the work has effectively overcome a challenge that has frustrated the world's top scientists and engineers for more than three decades, nicknamed the "valley of death" in nanocomposite design.

Research shows how earthquakes can impact fire safety in buildings

March 11, 2013 4:32 pm | News | Comments

Damage to building structural elements, elevators, stairs, and fire protection systems caused by the shaking from a major earthquake can play a critical role in the spread of fire and hamper the ability of occupants to evacuate, and impede fire departments in their emergency response operations. These are among the conclusions of a groundbreaking study of post-earthquake building fire performance conducted in 2012 at the Worcester Polytechnic Institute (WPI).

Graphene researchers create superheated water that can corrode diamonds

March 11, 2013 10:11 am | News | Comments

A team of researchers from the National University of Singapore (NUS) has successfully altered the properties of water, making it corrosive enough to etch diamonds. This strange result was achieved by attaching a layer of graphene on diamond and heated to high temperatures. Water molecules trapped between them become highly corrosive, as opposed to normal water.

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Riddle solved: How two unlikely materials are held together

March 11, 2013 9:38 am | News | Comments

For years, researchers have developed thin films of bismuth telluride, which converts heat into electricity or electricity to cooling, on top of gallium arsenide to create cooling devices for electronics. But it was not clear how this could be done because the atomic structures do not appear to be compatible. Researchers from North Carolina State University and RTI International have now solved the mystery.

AMSilk develops first man-made, scalable spider silk fiber

March 11, 2013 9:24 am | News | Comments

Germany-based company AMSilk has produced the world’s first competitive man-made spider silk fiber, called Biosteel, which is made entirely from recombinant silk proteins. Biosteel has mechanical properties similar to that of natural spider silk when comparing toughness, a measure indicating the kinetic energy absorbed before the fiber breaks.

Stone in shipwreck may be Viking navigators' tool

March 8, 2013 3:10 pm | by Raphael Satter, Associated Press | News | Comments

A rough, whitish block recovered from an Elizabethan shipwreck may be a sunstone, the fabled crystal believed by some to have helped Vikings and other medieval seafarers navigate the high seas, researchers say. That's because of a property known as birefringence, which splits light beams in a way that can reveal the direction of their source with a high degree of accuracy.

Improved colloidal quantum dots to make solar cells more efficient

March 8, 2013 10:04 am | by Terry Lavender, University of Toronto | News | Comments

A research group at the University of Toronto has recently described a new technique to improve efficiency in what are called colloidal quantum dot photovoltaics. The method depends on a characteristic of quantum dots: Their light-absorption spectrum can be changed simply by changing the size of quantum dot. By adjusting this property to the infrared portion of the spectrum, efficiency is improved.

Long-predicted atomic collapse state observed in graphene

March 8, 2013 9:59 am | News | Comments

Working with microscopic artificial atomic nuclei fabricated on graphene, a collaboration of researchers have imaged the “atomic collapse” states theorized to occur around super-large atomic nuclei. This is the first experimental observation of a quantum mechanical phenomenon that was predicted nearly 70 years ago and holds important implications for the future of graphene-based electronic devices.

Report: First discovery of a natural topological insulator

March 6, 2013 10:59 am | News | Comments

Unlike conventional electrical insulators, which do not conduct electricity, topological insulators have the unique property of conducting electricity on their surface, while acting as an insulator inside. In a step toward understanding and exploiting an exotic form of matter that has been sparking excitement for potential applications in a new genre of supercomputers, scientists are reporting the first identification of a naturally occurring topological insulator that was retrieved from an abandoned gold mine in the Czech Republic.

Nanoclusters in steel add strength, stability under irradiated conditions

March 6, 2013 10:35 am | News | Comments

Safely containing and retarding the mobility of reactor fuels are longstanding safety and security concerns. At the Environmental Molecular Sciences Laboratory. Scientists have used various analysis tools, including atom probe tomography (APT), focused ion beam, and accelerator capabilities, to examine complex oxide nanoclusters within oxide dispersion strengthened, or ODS, steels to determine their potential resistance and stability under a range of irradiation conditions.

Metal-organic framework offers efficient carbon capture

March 5, 2013 2:31 pm | by Vickie Chachere, University of South Florida | News | Comments

Chemists at the University of South Florida and King Abdullah University of Science and Technology in Saudi Arabia have discovered a more efficient, less expensive and reusable material for carbon dioxide capture and separation. The highly efficient mechanism utilizes a previously underused material—known as SIFSIX-1-Cu—that attracts carbon atoms.

New spectroscopy technique could improve optical devices

March 5, 2013 2:10 pm | News | Comments

A multi-university research team has used a new spectroscopic method—energy-momentum spectroscopy—to gain a key insight into how light is emitted from layered nanomaterials and other thin films. The technique lets researchers understand the source and orientation of light in light-emitting thin films and could lead to better LEDs, solar cells, and other devices that use layered nanomaterials.

Analytical theory may bring improvements to lithium-ion batteries

March 5, 2013 10:58 am | by Emil Venere, Purdue University | News | Comments

A new analytical theory has been developed at Purdue University that shows how to design experiments to study ways of controlling dendrite growth on electrodes in lithium-ion batteries. Using this approach, the researchers have shown theoretically how to control or eliminate the formation of these dendrites, which cause lithium-ion batteries to fail. The advance could help improve safety and might enable the batteries to be charged within a matter of minutes instead of hours.

Goddard scientists work at extreme edge of cosmic ice

March 5, 2013 9:49 am | by Elizabeth Zubritsky, NASA's Goddard Space Flight Center | News | Comments

In tiny test tubes, researchers at the Cosmic Ice Lab at NASA's Goddard Space Flight Center can reproduce reactions in ice from almost any time and place in the history of the solar system, including some that might help explain the origin of life. But to do so, they must use ice that produced with intense cold and low pressure, conditions that rarely occur on Earth.

New Fischer-Tropsch catalyst invented in Amsterdam

March 5, 2013 9:38 am | News | Comments

The Fischer-Tropsch process is used for producing fuels from synthesis gas, which in turn is made from natural gas, biomass, or coal. Large reserves of shale or natural gas now changing the world energy market have raised interest in this technology, but prior reactors have been too bulky. Inspired by patents from the 1960s audio cassette recording industry, University of Amsterdam chemists have recently developed a new Fischer-Tropsch catalyst that is significantly cheaper and more scalable.

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