The DCS-120 system uses excitation by ps diode lasers or femtosecond titanium-sapphire lasers, fast scanning by galvanometer mirrors, confocal detection, and FLIM by bh’s multidimensional TCSPC technique to record fluorescence lifetime images at high temporal resolution, high spatial resolution, and high sensitivity . The DCS-120 system is available with inverted microscopes of Nikon, Zeiss, and Olympus. It can also be used to convert an existing conventional microscope into a fully functional confocal or multiphoton laser scanning microscope with TCSPC detection. Due to its fast beam scanning and its high sensitivity the DCS-120 system is compatible with live-cell imaging. DCS-120 functions include simultaneous recording of FLIM or steady-state fluorescence images simultaneously in two fully parallel wavelength channels, laser wavelength multiplexing, time-series FLIM, Z stack FLIM, phosphorescence lifetime imaging (PLIM), fluorescence lifetime-transient scanning (FLITS) and FCS recording. Applications focus on lifetime variations by interactions of fluorophores with their molecular environment. Typical applications are ion concentration measurement, FRET experiments, autofluorescence imaging, and plant physiology.
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