Description:  This graphic depicts a chip-based interferometer used to detect small numbers of biological molecules. Samples are collected in the opening in the right branch of the device. When certain biological molecules are present, the degree of interference between the lightwaves passing through the left and right branches changes.
Source:  CSIC
Story:  Interference boosts biochip
TRN August 13/20, 2003
TRN Categories:  Microfluidics and BioMEMS; Data Acquisition
Form:  Still

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