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University of Sheffield

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Researchers at the University of Sheffield in the UK have received joint funding from the Engineering and Physical Science Research Council in Swindon, UK, and from the Ministry of Defence in London to conduct research on a sensor for detecting bacteria. The system will incorporate a polymer that emits a signal through fluorescence nonradiative energy transfer upon contact with microorganisms. The scientists hope that it will prove useful for detection of early-stage bacterial infection in hospitals and on the battlefield.Read full article

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    Published: May 2007
    Glossary
    fluorescence
    Fluorescence is a type of luminescence, which is the emission of light by a substance that has absorbed light or other electromagnetic radiation. Specifically, fluorescence involves the absorption of light at one wavelength and the subsequent re-emission of light at a longer wavelength. The emitted light occurs almost instantaneously and ceases when the excitation light source is removed. Key characteristics of fluorescence include: Excitation and emission wavelengths: Fluorescent materials...
    BiophotonicsdefensefluorescenceNews & FeaturesSensors & DetectorsUniversity of Sheffield

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