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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

Lasers Form 3-D Nanoparticle Crystals

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ANN ARBOR, Mich., June 7, 2011 — Three-dimensional optically induced crystals have been created by manipulating thousands of microscopic plastic spheres trapped by laser-generated electric fields. The technique could someday be used to analyze the structure of materials of biological interest, including bacteria, viruses and proteins. The standard method used to characterize biological molecules such as proteins involves crystallizing them, then analyzing their structure by bombarding the crystals with x-rays, using a technique called x-ray crystallography. But the method cannot be used on many of the proteins of...Read full article

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    Published: June 2011
    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.
    x-ray crystallography
    The study of the arrangement of atoms in a crystal by means of x-rays.
    3-D crystal structure3-D optically induced crystalsAmericasBetty Slama-EliauBiophotonicsegg cratesGeorg Raithelinfrared laser beamslaser-generated electric fieldslensesmicroscopic plastic spheresMicroscopynanonanoparticlesOpticsResearch & TechnologyUniversity of Michiganx-ray crystallographyLasers

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