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Cognex Corp. - Smart Sensor 3-24 GIF LB

Gold stars offer new rewards

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Gary Boas

The size- and shape-dependent emission of noble metal nanoparticles makes them useful for applications such as sensing and labeling and even for nanoscale optical waveguides. For sensing, these particles can detect molecular binding because their plasmon resonance wavelength shifts in response to changes in the local environment. Researchers at Rice University in Houston recently described star-shaped gold nanoparticles that have a high dielectric sensitivity and multiple spectral peaks — each corresponding to one of the starlike tips. These characteristics could make them highly...Read full article

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    Published: June 2006
    BiophotonicsBusinessMicroscopyRapidScanSensors & Detectorsspectroscopy

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