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IR technique enables optical trapping on silicon microchips

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Gwynne D. Koch

Optical trapping is a well-established method that uses visible light to manipulate small objects and to measure forces at the single-molecule level. So when Matthew J. Lang and David C. Appleyard, researchers at MIT in Cambridge, Mass.,wanted to measure the adhesive force between a single biological molecule and a semiconductor microchip surface to investigate the mechanisms underlying such interactions, they looked to optical trapping. However, semiconductor microchips are typically manufactured from silicon wafers, which are opaque to the visible spectrum. To enable optical trapping on...Read full article

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    Published: January 2008
    BiophotonicsindustrialMicroscopyNews & FeaturessemiconductorsSensors & Detectorssilicon microchips

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