Scientists describe how they have been able to unravel the structure of grain boundary defects in ceramics with both atomic resolution and chemical sensitivity by combining advanced electron microscopy techniques with theoretical simulations. Their findings shed new light onto these universally important defects and demonstrate that their structure can be much more complex than is often assumed.
Researchers from the London Centre for Nanotechnology have discovered electronic stripes, called 'charge density waves', on the surface of the graphene sheets that make up a graphitic superconductor. This is the first time these stripes have been seen on graphene, and the finding is likely to have profound implications for the exploitation of graphene.
Although they found that graphene makes very good chemical sensors, researchers at Illinois have discovered an unexpected "twist" - that the sensors are better when the graphene is "worse" - more imperfections improved performance.
Negative ions play an important role in everything from how our bodies function to the structure of the universe. Scientists from the University of Gothenburg, Sweden, have now developed a new method that makes it possible to study how the electrons in negative ions interact in, which is important in, for example, superconductors and in radiocarbon dating.
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Gene therapy can only be effective if delivered by a stable complex molecule. Now, scientists have determined the conditions that would stabilise complex molecular structures that are subject to inherent attractions and repulsions triggered by electric charges at the surfaces of the molecules.
The gallium nitride nanowires grown by scientists in the Physical Measurement Laboratory at NIST may only be a few tenths of a micrometer in diameter, but they promise a very wide range of applications, from new light-emitting diodes and diode lasers to ultra-small resonators, chemical sensors, and highly sensitive atomic probe tips.
A new class of x-ray photoelectron spectroscopic microscope has been developed at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory. The microscope will be used for advanced research on a wide range of technologically important materials systems.
Pyrite, better known as "fool's gold", was familiar to the ancient Romans and has fooled prospectors for centuries - but has now helped researchers at Oregon State University discover related compounds that offer new, cheap and promising options for solar energy.
Efforts in the 'Nano packaging technology for interconnect and heat dissipation' (Nanopack) project have resulted in new 'Thermal interface materials' (TIMs) developed with micro- and nanotechnology to greatly increase heat transfer away from chips and other electronic components, in turn reducing the demands placed on cooling systems, lowering costs and reducing energy consumption.
The three-day conference at the UAEU campus in Al Ain aims at providing a venue to gather researchers and scientists to assess Nano and Micro technologies for emerging applications and its prospects in the region.
Die Deutsche Forschungsgemeinschaft (DFG) hat die Einrichtung der Forschergruppe "INTERNANO: Mobility, aging and functioning of engineered inorganic nanoparticles at the aquatic-terrestrial interface" bewilligt.