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Fluorescence lifetime imaging microscopy (FLIM)
Erik B van Munster1, Theodorus W J Gadella
1Swammerdam Institute for Life Sciences & Centre for Advanced Microscopy, Section Molecular Cytology, Kruislaan 316, 1098 SM Amsterdam, The Netherlands. munster@science.uva.nl
Advances in Biochemical Engineering/Biotechnology
|August 6, 2005
Summary
Fluorescence lifetime imaging microscopy (FLIM) maps excited state lifetimes in images. This review details FLIM instrument designs and applications in cell biology, including protein-protein interactions via FRET.
Area of Science:
- Biophotonics
- Microscopy techniques
- Cell biology
Background:
- Fluorescence lifetime imaging microscopy (FLIM) visualizes nanosecond excited state lifetimes.
- FLIM systems operate in frequency or time domains, utilizing modulated or pulsed excitation and detection.
Purpose of the Study:
- To review FLIM instrument implementations in wide-field and confocal microscopy.
- To discuss novel strategies for FLIM instrument construction.
- To provide an overview of FLIM applications in biological and biomedical research.
Main Methods:
- Description of frequency-domain and time-domain FLIM system constructions.
- Discussion of wide-field and point-scanning (confocal) microscope integration.
- Exploration of novel FLIM instrument design strategies.
Main Results:
- FLIM is a robust technique for in situ protein-protein interaction studies using fluorescence resonance energy transfer (FRET).
- FLIM enables applications in ion-imaging, quantitative imaging, and tissue characterization.
- Various medical applications of FLIM are discussed.
Conclusions:
- FLIM offers versatile technical implementations for microscopic imaging.
- FLIM is a valuable tool in modern cell biology and biomedical research.
- The technique supports diverse applications beyond FRET studies.