Pingie: HTTP:: First Nanoscale Mass Spectrometer Created

HTTP:: First Nanoscale Mass Spectrometer Created
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California Institute of Technology (Caltech) scientists managed to create the first mass spectrometer at the nanoscale in the world. The device is able to measure the mass of single molecules in real-time, combining the action of components several billionths of a millimeter in size. The new method is a significant break-off from the traditionally complex process of large-scale mass spectrometry, which is incredibly  cumbersome to perform. Details of the accomplishment appear in the latest issue of the journal Nature Nanotechnology.In regular mass spectrometry, samples containing several tens of hundreds of molecules are ionized, a process that results in electrically charged atoms called ions. These components are then directed into an electrical field, where the way they move around is analyzed. The movement patterns are generated by their masses and energies, which allows physicists to extract their mass-to-charge ratio. Ultimately, this knowledge can be used to obtain !
the actual mass of the targeted molecules.In the new nanoscale method devised at Caltech, this cumbersome procedure is significantly simplified. The spectrometer is basically made up of two nanoelectromechanical system (NEMS) resonators, tiny, bridge-like structures, two micrometers long and 100 nanometers ...
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http://news.softpedia.com/news/First-Nanoscale-Mass-Spectrometer-Created-117380.shtml

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