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Fluorescence lifetime imaging microscopy (FLIM) and fluorescence anisotropy imaging microscopy (FAIM) are versatile tools for the investigation of the molecular environment of fluorophores in living cells. Owing to nanometre-scale interactions via Förster resonance energy transfer (FRET), FLIM and FAIM are powerful microscopy methods for the detection of conformational changes and protein–protein interactions reflecting the biochemical status of live cells. This review provides an overview of recent advances in photonics techniques, quantitative data analysis methods and applications in the life sciences
Borst et al. (Tue,) studied this question.