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A new way to manufacture nanofibers

May 13, 2015 8:51 am | by James Hataway, Univ. of Georgia | Videos | Comments

Researchers at the Univ. of Georgia have developed an inexpensive way to manufacture extraordinarily thin polymer strings commonly known as nanofibers. These polymers can be made from natural materials like proteins or from human-made substances to make plastic, rubber or fiber, including biodegradable materials.

Materials crystallize with surprising properties

May 13, 2015 8:20 am | by American Chemical Society | Videos | Comments

Think about your favorite toys as a child. Did they light up or make funny noises when you touched them? Maybe they changed shape or texture. In ACS Central Science, researchers report a new material that combines many of these characteristics. Beyond being fun, these materials, called organic “supercooled” liquids, may be useful for optical storage systems and biomedical sensors.

A metal composite that will float your boat

May 13, 2015 7:50 am | by Kathleen Hamilton, New York Univ. | News | Comments

Researchers have demonstrated a new metal matrix composite that is so light that it can float on water. A boat made of such lightweight composites will not sink despite damage to its structure. The new material also promises to improve automotive fuel economy because it combines light weight with heat resistance.

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Scientists have proposes a new family of materials whose topological state can be directly observed experimentally. Courtesy of SISSA

Topological insulators become a little less “elusive”

May 12, 2015 10:39 am | by Sissa Medialab | News | Comments

They are strange materials, insulators on the inside and conductors on the surface. They also have properties that make them excellent candidates for development of spintronics (”spin-­based electronics”) and, more in general, quantum computing. However, they are also elusive, as their properties are extremely difficult to observe. A study proposes a new family of materials whose topological state can be directly observed experimentally.

Pattern recognition using magnonic holographic memory

May 12, 2015 7:55 am | by Sean Nealon, Univ. of California, Riverside | News | Comments

Researchers have successfully demonstrated pattern recognition using a magnonic holographic memory device, a development that could greatly improve speech and image recognition hardware. Pattern recognition focuses on finding patterns and regularities in data. The uniqueness of the demonstrated work is that the input patterns are encoded into the phases of the input spin waves.

Faster, smaller, more informative

May 12, 2015 7:37 am | by Anne Trafton, MIT News Office | News | Comments

A new technique invented at Massachusetts Institute of Technology can measure the relative positions of tiny particles as they flow through a fluidic channel, potentially offering an easy way to monitor the assembly of nanoparticles, or to study how mass is distributed within a cell. With further advancements, this technology has the potential to resolve the shape of objects in flow as small as viruses, the researchers say.

Superhydrophobic glass coating offers clear benefits

May 11, 2015 5:00 pm | by Ron Walli, Oak Ridge National Laboratory | News | Comments

A moth’s eye and lotus leaf were the inspirations for an antireflective water-repelling, or superhydrophobic, glass coating that holds significant potential for solar panels, lenses, detectors, windows, weapons systems and many other products. The discovery is based on a mechanically robust nanostructured layer of porous glass film. The coating can be customized to be superhydrophobic, fog-resistant and antireflective.

Measurement of a single nuclear spin in biological samples

May 11, 2015 12:06 pm | by Univ. of Basel | News | Comments

Physicists were able to show, for the first time, that the nuclear spins of single molecules can be detected with the help of magnetic particles at room temperature. The researchers describe a novel experimental setup with which the tiny magnetic fields of the nuclear spins of single biomolecules could be registered for the first time.

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Unlocking the creation of wearable electronic devices

May 11, 2015 11:58 am | by Univ. of Exeter | News | Comments

An international team of scientists, including Prof. Monica Craciun from the Univ. of Exeter, have pioneered a new technique to embed transparent, flexible graphene electrodes into fibers commonly associated with the textile industry. The discovery could revolutionize the creation of wearable electronic devices, such as clothing containing computers, phones and MP3 players, which are lightweight, durable and easily transportable.

Out with heavy metal

May 11, 2015 11:29 am | by Dawn Zimmerman, Pacific Northwest National Laboratory | Videos | Comments

Researchers have demonstrated a new process for the expanded use of lightweight aluminum in cars and trucks at the speed, scale, quality and consistency required by the auto industry. The process reduces production time and costs while yielding strong and lightweight parts, for example delivering a car door that is 62% lighter and 25% cheaper than that produced with today's manufacturing methods.

Last Day for 2015 R&D 100 Award Entries

May 11, 2015 11:15 am | by Lindsay Hock, Editor | News | Comments

The editors of R&D Magazine have announced that today, May 18, 2015, is the last day to accept 2015 R&D 100 Award entries. The R&D 100 Awards have a 50 plus year history of awarding the 100 most technologically significant products of the year.

Whispering gallery for graphene electrons

May 11, 2015 9:08 am | by NIST | News | Comments

An international research group led by scientists at NIST has developed a technique for creating nanoscale whispering galleries for electrons in graphene. The development opens the way to building devices that focus and amplify electrons just as lenses focus light and resonators (like the body of a guitar) amplify sound.

Scientists control the flow of heat, light in photonic crystals

May 8, 2015 8:44 am | by Univ. of Twente | News | Comments

Scientists from the MESA+ Institute for Nanotechnology at the Univ. of Twente in the Netherlands and Thales Research & Technology, France, have found a way to control heat propagation in photonic nano-sized devices, which will be used for high speed communications and quantum information technologies.

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Plugging up leaky graphene

May 8, 2015 7:49 am | by Jennifer Chu, MIT News Office | News | Comments

For faster, longer-lasting water filters, some scientists are looking to graphene to serve as ultra-thin membranes, filtering out contaminants to quickly purify high volumes of water. Graphene’s unique properties make it a potentially ideal membrane for water filtration or desalination. But there’s been one main drawback to its wider use.

Electrons corralled using new quantum tool

May 7, 2015 3:22 pm | by David L. Chandler, MIT News Office | News | Comments

Researchers have succeeded in creating a new “whispering gallery” effect for electrons in a sheet of graphene, making it possible to precisely control a region that reflects electrons within the material. They say the accomplishment could provide a basic building block for new kinds of electronic lenses, as well as quantum-based devices that combine electronics and optics.

A new spin on plasmonics

May 7, 2015 10:46 am | by Aalto Univ. | News | Comments

Researchers experimentally demonstrated that patterning of magnetic materials into arrays of nanoscale dots can lead to a very strong and highly controllable modification of the polarization of light when the beam reflects from the array. This discovery could increase the sensitivity of optical components for telecommunication and biosensing applications.

Using light to probe acoustic tuning in gold nanodisks

May 7, 2015 10:34 am | by Jade Boyd, Rice Univ. | News | Comments

In a study that could open doors for new applications of photonics from molecular sensing to wireless communications, Rice Univ. scientists have discovered a new method to tune the light-induced vibrations of nanoparticles through slight alterations to the surface to which the particles are attached.

Tiny silicone spheres appear from the mist

May 7, 2015 7:44 am | by Liz Ahlberg, Physical Sciences Editor, Univ. of Illinois, Urbana-Champaign | News | Comments

Technology in common household humidifiers could enable the next wave of high-tech medical imaging and targeted medicine, thanks to a new method for making tiny silicone microspheres developed by chemists at the Univ. of Illinois. Microspheres, tiny spheres as small as a red blood cell, have shown promise as agents for targeted drug delivery to tissues, as contrast agents for medical imaging and in industrial applications.

A better way to build DNA scaffolds

May 6, 2015 12:47 pm | by Chris Chipello, McGill Univ. | Videos | Comments

Imagine taking strands of DNA and using it to build tiny structures that can deliver drugs to targets within the body or take electronic miniaturization to a whole new level. While it may still sound like science fiction to most of us, researchers have been piecing together and experimenting with DNA structures for decades.

Improving organic transistors that drive flexible, comfortable electronics

May 5, 2015 12:40 pm | by Janet Lathrop, Univ. of Massachusetts, Amherst | News | Comments

A revolution is coming in flexible electronic technologies as cheaper, more flexible, organic transistors come on the scene to replace expensive, rigid, silicone-based semiconductors, but not enough is known about how bending in these new thin-film electronic devices will affect their performance, say materials scientists at the Univ. of Massachusetts Amherst.

Toward a squishier robot

May 5, 2015 11:37 am | by Univ. of Pittsburgh | News | Comments

For decades, robots have advanced the efficiency of human activity. Typically, however, robots are formed from bulky, stiff materials and require connections to external power sources; these features limit their dexterity and mobility. But what if a new material would allow for development of a "soft robot" that could reconfigure its own shape and move using its own internally generated power?

“Microcombing” creates stronger, more conductive carbon nanotube films

May 5, 2015 9:42 am | by Matt Shipman, News Services, North Carolina State Univ. | News | Comments

Researchers have developed an inexpensive technique called “microcombing” to align carbon nanotubes, which can be used to create large, pure CNT films that are stronger than any previous such films. The technique also improves the electrical conductivity that makes these films attractive for use in electronic and aerospace applications.

Channeling valleytronics in graphene

May 5, 2015 8:05 am | by Lynn Yarris, Lawrence Berkeley National Laboratory | News | Comments

To the list of potential applications of graphene we can now add valleytronics, the coding of data in the wave-like motion of electrons as they speed through a conductor. Lawrence Berkeley National Laboratory researchers have discovered topologically protected 1-D electron conducting channels at the domain walls of bilayer graphene. These conducting channels are “valley polarized".

Implantable electrode coating good as gold

May 4, 2015 11:51 am | by Anne M. Stark, Lawrence Livermore National Laboratory | News | Comments

A team of researchers from Lawrence Livermore National Laboratory and Univ. of California, Davis, have found that covering an implantable neural electrode with nanoporous gold could eliminate the risk of scar tissue forming over the electrode’s surface. The team demonstrated that the nanostructure of nanoporous gold achieves close physical coupling of neurons by maintaining a high neuron-to-astrocyte surface coverage ratio.

Defects in atomically thin semiconductor emit single photons

May 4, 2015 11:08 am | by Univ. of Rochester | News | Comments

Researchers at the Univ. of Rochester have shown that defects on an atomically thin semiconductor can produce light-emitting quantum dots. The quantum dots serve as a source of single photons and could be useful for the integration of quantum photonics with solid-state electronics: a combination known as integrated photonics.

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