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Hamamatsu Corp. - Earth Innovations LB 2/24

Particles' Surprising Moves

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RALEIGH, N.C., March 3, 2008 -- Microscopic Janus particles -- spheres whose halves are physically or chemically different -- have been found to propel themselves in unexpected ways when an electric field is applied. Researchers at North Carolina State University (NC State) in Raleigh said they have demonstrated for the first time that Janus particles -- so-called "two-faced" particles named for the Roman god with two faces -- will move like stealthy submarines when an alternating electrical field is applied to liquid surrounding the particles. North Carolina State University researchers observed "two-faced"...Read full article

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    Published: March 2008
    Glossary
    electrophoresis
    The movement of particles or ions in a solution toward the electrode having the opposite sign because of the application of an electrical field.
    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.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    Basic ScienceBiophotonicsdrug deliveryelectric fieldelectrodeselectrophoresisindustrialJanus particlesmicroscalemicrosensorsMITnanonanoscaleNews & FeaturesNorth Carolina State UniversityparticlesphotonicsSensors & Detectorssmart materialssubmarinetwo-facedVelev

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