In previous experiments the photons were confined to fiber channels a few hundred meters long to ensure their state remained unchanged, but in the new experiments pairs of photons were entangled and then the higher-energy photon of the pair was sent through a free space channel 16 km long.
Jun 7th, 2010
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Duke University researchers have devised a method to dry and preserve proteins in a glassified form that seems to retain the molecules' properties as workhorses of biology.
Jun 7th, 2010
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The results of the study show that these clusters of small numbers of silver atoms catalyze ethanol oxidation at similar concentrations to those found in the blood of alcoholics and at values of membrane potential and pH that are compatible with those exhibited by mammalian cells.
Jun 7th, 2010
Read morePhysicists at the Technische Universitaet Muenchen (TUM) are gearing up for experimental tests of findings they arrived at through theoretical considerations: that electrochemical reactions take place more rapidly on isolated, nanometer-scale electrodes than on their familiar macroscopic counterparts, and that this surprising behavior is caused by thermal noise.
Jun 7th, 2010
Read moreImec and Holst Centre have developed very sensitive integrated sensing elements for gas detection. The polymer-coated microbridges in high-density arrays can detect ppm-level concentrations of vapors using on-chip integrated read-out techniques.
Jun 7th, 2010
Read moreResearchers pinpointed noncarbon atoms that create defects when graphene is produced through a technique called graphene-oxide reduction. The researchers also propose how to make that technique more efficient by precisely applying hydrogen - rather than heat - to remove the impurities.
Jun 6th, 2010
Read moreThree-dimensional imaging is dramatically expanding the ability of researchers to examine biological specimens, enabling a peek into their internal structures. And recent advances in X-ray diffraction methods have helped extend the limit of this approach.
Jun 5th, 2010
Read moreNanotechnology promises employment, sustainability and health. The Dutch government invests heavily in it. But how do we achieve these promises? In preparation for a parliamentary debate about nanotechnology on 21 April 2010, the Rathenau Institute initiated a working visit of MPs to one of the most promising areas of its application: healthcare.
Jun 4th, 2010
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PTB-Wissenschaftler entwickeln genaues und rueckfuehrbares Messverfahren fuer Nanopartikel.
Jun 4th, 2010
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The ultrashort laser ablation of solid materials is basis of different modern and advanced scientific and technological areas as fabrication of metal and semiconductor nanoparticles, deposition of nanostructures and their embedding in optical films, or deposition on their surfaces in order to alter exciting properties or development of new.
Jun 4th, 2010
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New York University Chemist Nadrian Seeman has been awarded the 2010 Kavli Prize in Nanoscience for his creation of robotic devices that have the potential to create new materials a billionth of a meter in size.
Jun 4th, 2010
Read moreChinese researchers have successfully built an electromagnetic absorbing device for microwave frequencies. The device, made of a thin cylinder comprising 60 concentric rings of metamaterials, is capable of absorbing microwave radiation, and has been compared to an astrophysical black hole.
Jun 4th, 2010
Read moreEight scientists whose discoveries have dramatically expanded human understanding in the fields of astrophysics, nanoscience and neuroscience has been recognised with the award of the million-dollar Kavli Prizes.
Jun 3rd, 2010
Read moreFor most people, frustration is a condition to be avoided. But for scientists studying certain 'frustrated' ensembles of interacting components - that is, those which cannot settle into a state that minimizes each interaction - it may be the key to understanding a host of puzzling phenomena that affect systems from neural networks and social structures to protein folding and magnetism.
Jun 3rd, 2010
Read moreDie fuehrende Konferenz zum Thema Nanotechnologie in Europa findet bereits seit 2002 in Dresden statt und wird in ihrer achten Auflage am 6. und 7. Juli 2010 zur Nanotechnologie-Leitveranstaltung des DRESDEN-concept ausgebaut.
Jun 3rd, 2010
Read moreResearchers are investigating new applications for terahertz sensors. Based on their findings, these sensors could be used for improving optical sources, detectors and modulators for optical interconnections and for creating biomolecules, such as plastic explosives.
Jun 2nd, 2010
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