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Local nanoscale electrical measurements for graphene

Research has taken an important step towards standardising important electrical parameters of graphene such as surface potential and work function. The nascent graphene industry requires these standardised measurements so that the properties of graphene are understood well enough for it to be widely used in commercial electronic devices.

Posted: Sep 6th, 2013

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A theoretical device could bring practical spintronics closer to reality

One of the major hurdles in the development of faster electronic devices is the amount of heat produced by silicon microchips. This heat is created by the transport of electrical charges through transistors. Researchers have now proposed a device that instead of moving electrons is able to transport information using electron spin over long distances.

Posted: Sep 6th, 2013

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Made-to-order materials: Engineers focus on the nanoscale to create strong, lightweight materials

The lightweight skeletons of organisms such as sea sponges display a strength that far exceeds that of manmade products constructed from similar materials. Scientists have long suspected that the difference has to do with the hierarchical architecture of the biological materials - the way the silica-based skeletons are built up from different structural elements, some of which are measured on the scale of nanometers. Now engineers at the California Institute of Technology (Caltech) have mimicked such a structure by creating nanostructured, hollow ceramic scaffolds, and have found that the small building blocks, or unit cells, do indeed display remarkable strength and resistance to failure despite being more than 85 percent air.

Posted: Sep 5th, 2013

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Molecular beacons light path to cardiac muscle repair

Having a pure population of cardiac muscle cells is essential for avoiding tumor formation after transplantation, but has been technically challenging. Researchers at Emory and Georgia Tech have developed a method for purifying cardiac muscle cells from stem cell cultures using molecular beacons.

Posted: Sep 5th, 2013

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Electronics advance moves closer to a world beyond silicon

Researchers in the College of Engineering at Oregon State University have made a significant advance in the function of metal-insulator-metal, or MIM diodes, a technology premised on the assumption that the speed of electrons moving through silicon is simply too slow.

Posted: Sep 4th, 2013

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Detecting dangerous chemicals using nanosensors

A consortium of European and Russian scientists has developed a new generation of ultra-sensitive sensors for the detection of toxic chemicals. Since some of these chemicals are so dangerous, it is vital to know their concentration in the air, especially in industrial and populated areas.

Posted: Sep 4th, 2013

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Measuring progress in nanotechnology design

An international team of engineers, led by scientists from Drexel University's College of Engineering, have developed a way to measure electron band offset in nanodevices using laser spectroscopy.

Posted: Sep 4th, 2013

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Researchers produce nanostructures with potential to advance energy devices

Arizona State University researchers Karl Sieradzki and Qing Chen have been experimenting with dealloying lithium-tin alloys, and seeing the potential for the nanostructures they are producing to spark advances in lithium-ion batteries, as well as in expanding the range of methods for creating new nanoporous materials using the dealloying process.

Posted: Sep 4th, 2013

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