Higher Education Press
This mini-review provides a concise overview of the latest advances in fluorescence lifetime imaging microscopy (FLIM). It discusses both time-domain and frequency-domain techniques, analysis methods − including phasor approaches and deep learning, and highlights applications in multiplexed imaging and quantitative biosensing. Furthermore, FLIM-empowered multimodal imaging approaches aimed at enhancing spatial and temporal resolution are discussed. Persistent challenges, including photon efficiency, probe sensitivity, and achieving high-speed imaging in live-cell environments, are critically assessed, outlining pathways toward future innovations.
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