Glucose Detector (IMAGE)

Brown University

Glucose Detector

Caption

Each plasmonic interferometer -- thousands of them per square millimeter -- consists of a slit flanked by two grooves etched in a silver metal film. The schematic shows glucose molecules "dancing" on the sensor surface illuminated by light with different colors. Changes in light intensity transmitted through the slit of each plasmonic interferometer yield information about the concentration of glucose molecules in solution.

Credit

Domenico Pacifici, Brown University

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