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Silver Nanostructures with Unique Optical Properties Created

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Michael A. Greenwood

Silver nanobars and nanorice with the ability to scatter and absorb light in the near-infrared have been produced by controlling the assembly of silver atoms in solution. These nanostructures could compete with nanorods made of gold as contrasting agents for the optical imaging of cancer. Figure 1. An SEM image of silver nanobars (left) is tilted 45° (right) to provide a better view of the shape of the nanobars. A team of researchers led by Younan Xia from the University of Washington in Seattle grew the nanobars, which had an average aspect ratio of 2.7, in a solution of ethylene...Read full article

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    Published: May 2007
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    FeaturesMicroscopynanoNanorodsoptical imagingSilver nanobarsspectroscopy

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