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Renewable bioplastics made from squid proteins

December 18, 2014 2:33 pm | News | Comments

At Penn State, a group led by Melik Demirel, professor of engineering science and mechanics, is designing a biodegradable plastic from structural proteins that could help clean up the world's oceans and solve an interesting set of other problems along the way.

Sensor could improve one of nano research’s most useful microscopes

December 17, 2014 3:31 pm | by Chad Boutin, NIST | News | Comments

Spotting molecule-sized features may become both easier and more accurate with a sensor...

Microscopy pencils patterns in polymers at the nanoscale

December 17, 2014 2:50 pm | by Morgan McCorkle, Oak Ridge National Laboratory | News | Comments

Scientists have used advanced microscopy to carve out nanoscale designs on the surface of a new...

New law for superconductors

December 16, 2014 2:47 pm | by Larry Hardesty, MIT News Office | News | Comments

Massachusetts Institute of Technology researchers have discovered a new mathematical...

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Scientists trace nanoparticles from plants to caterpillars

December 16, 2014 2:37 pm | by Jade Boyd, Rice Univ. | News | Comments

In one of the most comprehensive laboratory studies of its kind, Rice Univ. scientists traced the uptake and accumulation of quantum dot nanoparticles from water to plant roots, plant leaves and leaf-eating caterpillars. The study found that nanoparticle accumulation in both plants and animals varied significantly depending upon the type of surface coating applied to the particles.

Turning hydrogen into “graphene”

December 16, 2014 2:13 pm | by Carnegie Institute | News | Comments

New work from Carnegie Institute's Ivan Naumov and Russell Hemley delves into the chemistry underlying some surprising recent observations about hydrogen, and reveals remarkable parallels between hydrogen and graphene under extreme pressures.

Lowering Resistance

December 16, 2014 10:48 am | by Paul Livingstone | Articles | Comments

Magnetic sensing devices are an inextricable part of the global marketplace for electronic products. Nearly 6 billion units are shipped each year, and that number is rapidly growing along with electronics in general. Magnetic sensors have thousands of uses, and product designers can choose from three main types—reed, Hall-effect and magnetoresistive—to provide low-power, high-precision position sensing capability.

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Carbon-trapping “sponges” can cut greenhouse gases

December 16, 2014 8:56 am | by Anne Ju, Cornell Univ. | News | Comments

In the fight against global warming, carbon capture is gaining momentum, but standard methods are plagued by toxicity, corrosiveness and inefficiency. Using a bag of chemistry tricks, Cornell Univ. materials scientists have invented low-toxicity, highly effective carbon-trapping “sponges” that could lead to increased use of the technology.

New algorithm a Christmas gift to 3-D printing

December 15, 2014 2:23 pm | by Carol Thorbes, Univ. Communications, Simon Fraser Univ. | News | Comments

Just in time for Christmas, Simon Fraser Univ. computing science professor Richard Zhang reveals how to print a 3-D Christmas tree efficiently and with zero material waste, using the world’s first algorithm for automatically decomposing a 3-D object into what are called pyramidal parts. A pyramidal part has a flat base with the remainder of the shape forming upwards over the base with no overhangs, much like a pyramid.

Using liquid drops to make solids stiffer

December 15, 2014 2:13 pm | by Rase McCry, Yale Univ. | News | Comments

Engineers at Yale Univ. have discovered that the stiffness of liquid drops embedded in solids has something in common with Goldilocks: While large drops of liquids are softer than the solid that surrounds them, extremely tiny drops of liquid can actually be stiffer than certain solids. But when they’re “just right,” the liquid drops have the exact same stiffness as the surrounding solid.

New findings could point the way to “valleytronics”

December 15, 2014 1:41 pm | by David L. Chandler, MIT News Office | News | Comments

New findings could provide a pathway toward a kind of 2-D microchip that would make use of a characteristic of electrons other than their electrical charge, as in conventional electronics. The new approach is dubbed “valleytronics,” because it makes use of properties of an electron that can be depicted as a pair of deep valleys on a graph of their traits.

Uncovering the Secrets Governing CVD of Graphene

December 15, 2014 11:24 am | by Mark H. Wall, Thermo Fisher Scientific, Madison, Wisc., Robert M. Jacobberger, Dept. of Material Science and Engineering, Univ. of Wisconsin-Madison and Elena Polyakova, Graphene Laboratories, Ronkonkoma, N.Y. | Thermo Fisher Scientific | Articles | Comments

One major challenge currently facing the graphene industry is difficulty in controlling the quality of graphene sheets when produced over large areas using industrial scale techniques. The key to solving this challenge lies in gaining a thorough understanding of the synthetic methods used to fabricate macro-sized single-layer graphene films.

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Squid supplies blueprint for printable thermoplastics

December 15, 2014 10:37 am | by Penn State Univ. | News | Comments

Squid, what is it good for? You can eat it and you can make ink or dye from it, and now a Penn State Univ. team of researchers is using it to make a thermoplastic that can be used in 3-D printing. The team looked at the protein complex that exists in the squid ring teeth (SRT). The naturally made material is a thermoplastic, but obtaining it requires a large amount of effort and many squid.

Team combines logic, memory to build “high-rise” chip

December 15, 2014 7:49 am | by Tom Abate, Stanford Engineering | News | Comments

For decades, the mantra of electronics has been smaller, faster, cheaper. Today, Stanford Univ. engineers add a fourth word: taller. A Stanford team revealed how to build high-rise chips that could leapfrog the performance of the single-story logic and memory chips on today's circuit cards.

Scientists measure speedy electrons in silicon

December 12, 2014 7:00 am | News | Comments

An international team of physicists and chemists based at UC Berkeley has, for the first time, taken snapshots of this ephemeral event using attosecond pulses of soft X-ray light lasting only a few billionths of a billionth of a second.                             

Nanoshaping method points to future manufacturing technology

December 12, 2014 7:00 am | News | Comments

A new method that creates large-area patterns of three-dimensional nanoshapes from metal sheets represents a potential manufacturing system to inexpensively mass produce innovations such as "plasmonic metamaterials" for advanced technologies.

Theory details how ‘hot’ monomers affect thin-film formation

December 11, 2014 2:43 pm | by Mike Williams, Rice University | News | Comments

Researchers at Rice and the University of Maryland led by Rice theoretical physicist Alberto Pimpinelli devised the first detailed model to quantify what they believe was the last unknown characteristic of film formation through deposition by vacuum sublimation and chemical vapor deposition.

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Stacking 2-D materials may lower cost of semiconductor devices

December 11, 2014 2:34 pm | by North Caroline State University | News | Comments

A team of researchers led by North Carolina State University has found that  stacking materials that are only one atom thick can create semiconductor junctions that transfer charge efficiently, regardless of whether the crystalline structure of the materials is mismatched.

Baby steps toward molecular robots

December 11, 2014 8:32 am | News | Comments

A walking molecule, so small that it cannot be observed directly with a microscope, has been recorded taking its first nanometer-sized steps. It's the first time that anyone has shown in real time that such a tiny object – termed a "small molecule walker" – has taken a series of steps.

Physicists explain puzzling particle collisions

December 11, 2014 8:21 am | News | Comments

An anomaly spotted at the Large Hadron Collider has prompted scientists to reconsider a mathematical description of the underlying physics. By considering two forces that are distinct in everyday life but unified under extreme conditions like those within the collider and just after the birth of the universe, they have simplified one description of the interactions of elementary particles. 

‘High-entropy’ alloy is as light as aluminum, as strong as titanium alloys

December 11, 2014 8:09 am | News | Comments

Researchers have developed a new “high-entropy” metal alloy that has a higher strength-to-weight ratio than any other existing metal material. High-entropy alloys are materials that consist of five or more metals in approximately equal amounts. 

Organic electronics could lead to cheap, wearable medical sensors

December 10, 2014 2:19 pm | by Sarah Yang, UC Berkeley | News | Comments

Future fitness trackers could soon add blood-oxygen levels to the list of vital signs measured with new technology developed by engineers.                               

Defects are perfect in laser-induced graphene

December 10, 2014 7:50 am | News | Comments

Researchers at Rice University have created flexible, patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer-controlled laser. The process works in air at room temperature and eliminates the need for hot furnaces and controlled environments, and it makes graphene that may be suitable for electronics or energy storage.

Composite materials can be designed in a supercomputer 'virtual lab'

December 9, 2014 12:45 pm | News | Comments

Scientists have shown how advanced computer simulations can be used to design new composite materials. Nanocomposites, which are widely used in industry, are revolutionary materials in which microscopic particles are dispersed through plastics. 

Researchers show commonalities in how different glassy materials fail

December 9, 2014 7:59 am | News | Comments

Researchers at the University of Pennsylvania have now shown an important commonality that seems to extend through the range of glassy materials. They have demonstrated that the scaling between a glassy material’s stiffness and strength remains unchanged, implying a constant critical strain that these materials can withstand before catastrophic failure.

Germanium comes home to Purdue for semiconductor milestone

December 8, 2014 4:26 pm | by Emil Venere, Purdue Univ. | News | Comments

A laboratory at Purdue Univ. provided a critical part of the world's first transistor in 1947—the purified germanium semiconductor—and now researchers here are on the forefront of a new germanium milestone. The team has created the first modern germanium circuit—a complementary metal–oxide–semiconductor (CMOS) device—using germanium as the semiconductor instead of silicon.

New semiconductor could change face of consumer electronics

December 8, 2014 9:54 am | by David Stauth, Oregon State Univ. | News | Comments

Materials first developed at Oregon State Univ. more than a decade ago with an eye toward making “transparent” transistors may be about to shake up the field of consumer electronics; and the first uses are not even based on the transparent capability of the materials. In the continued work and in collaboration with private industry, certain transparent transistor materials are now gaining some of their first commercial applications.

Rattled atoms mimic high-temperature superconductivity

December 8, 2014 9:29 am | by SLAC Office of Communications | News | Comments

An experiment at SLAC National Accelerator Laboratory provided the first fleeting glimpse of the atomic structure of a material as it entered a state resembling room-temperature superconductivity—a long-sought phenomenon in which materials might conduct electricity with 100% efficiency under everyday conditions.

Uniform nanowire arrays for science, manufacturing

December 8, 2014 8:36 am | by Kris Bertness, NIST | News | Comments

Defect-free nanowires with diameters in the range of 100 nm hold significant promise for numerous in-demand applications. That promise can't be realized, however, unless the wires can be fabricated in large uniform arrays using methods compatible with high-volume manufacture. To date, that has not been possible for arbitrary spacings in ultra-high vacuum growth.

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