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Hamamatsu Corp. - Earth Innovations LB 2/24

Sensor Can Find E. coli Quickly Over Wide Temperature Range

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A fiber-optic biosensor has been developed that can detect E.coli bacteria in 15 to 20 minutes. The sensor is temperature-insensitive over a wide range, making it well-suited for the accurate detection of E. coli bacteria in outdoor environments. To build the sensor, bacteriophages were bonded to the surface of an optical fiber. The bacteriophages grab E.coli bacteria from a sample and keep the bacteria attached to the fiber. When a beam of light strikes the sensor’s surface, its wavelength shifts when E. coli is present, indicating E.coli contamination. The graph shows...Read full article

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    Published: September 2016
    Research & TechnologyAmericasAsia-PacificSensors & DetectorsE. coliOpticsfiber opticsBioScanBiophotonics

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