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. Author manuscript; available in PMC: 2016 May 9.
Published in final edited form as: Cytometry A. 2015 Mar 23;87(5):419–427. doi: 10.1002/cyto.a.22658

Figure 5.

Figure 5

A: Fluorescent dye cypate delivered IT shows retention in the lung area within 24 hours. Red - NIR fluorescence channel (785/810 nm), green –fluorescence channel (685/710 nm). B: Region of interest (ROI) C: change of total fluorescent signal with time (ROI, dorsal position). Fluorescence in the 700 nm region (green) originates from digestion of chlorophyll-containing food in the stomach and intestines. Fluorescence from chlorophyll-containing chow is much more intense at about 700 nm than 800 nm and identified the location of the stomach and intestine relative to the expected signal from the nanoparticles in the lungs.