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Performance of a MM2 probe for sensing and imaging of icO2. A) Phosphorescence lifetime calibration and Stern-Volmer plots of MM2 probe. B) Widefield fluorescence lifetime microscopy images of MEF cells stained with MM2 (10 μg mL−1, 16 h). The images for different concentration of atmospheric O2 were displayed. Permission obtained from Ref. [191] Copyright (2012) by Wiley.
