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UV LEDs Excite Biological Fluorophores

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Anne L. Fischer

Researchers at the Institute of Materials Science and Applied Research at Vilnius University in Lithuania have used deep-ultraviolet LEDs to perform frequency domain fluorescence measurements for the real-time identification of hazardous biological compounds. The 340- and 280-nm LEDs were modulated at frequencies as high as 200 MHz to measure fluorescence lifetimes in four basic biological autofluorophores: the coenzymes nicotinamide adenine dinucleotide (NADH) and riboflavin, and the amino acids tyrosine and tryptophan. Sensor Electronic Technology Inc. of Columbia, S.C., fabricated the...Read full article

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    Published: November 2005
    biological compoundsdeep-ultraviolet LEDsFeaturesfrequency domain fluorescence measurementsSensors & Detectors

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