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The pH-sensitive probe carboxy SNAFL-1 can be used for imaging using ratiometric and fluorescence lifetime techniques. The former method suffers from the drawback that quantitative pH imaging in cells requires a time-consuming and cumbersome calibration procedure. In contrast, straightforward calibrations in buffer suffice for fluorescence lifetime imaging.(More)
Effects of epidermal growth factor (EGF) on pH transients in aggregates of Sertoli cells and germinal cells have been investigated with confocal microscopy using a fluorescent pH sensitive indicator. In some Sertoli cells EGF caused a rapid rise in the pH whereas other Sertoli cells did not respond to EGF. Some Sertoli cells showed a delayed response which(More)
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