Live cell ultraviolet microscopy: A comp
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J. Balaji; R. Desai; S. Maiti
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Article
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2003
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John Wiley and Sons
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English
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## Abstract We compare conventional infrared laser based threeβphoton excitation with a visible laser based twoβphoton excitation scheme for imaging the ultraviolet fluorophore serotonin in solution and in live cells. To obtain a signal level of 1,000 photons per second per mM serotonin solution, w