Fig. 5
From: Gelatin–chlorin e6 conjugate for in vivo photodynamic therapy
Ex vivo NIRF imaging of gelatin–Ce6 in SCC-7 tumor-bearing mice. a Ex vivo NIRF images of the dissected organs (heart, lung, liver, spleen, and kidney) and tumors 24 h after injection of free Ce6, gelatin–Ce6-2, or gelatin–Ce6-8 into SCC-7 tumor-bearing mice. The right image has a different intensity scale to compare tumor tissues. b Quantitative NIRF signal analysis of organs (heart, lung, liver, spleen, and kidney) and tumor tissue (n = 3). *p < 0.01. c Fluorescence images of tumor tissue slices 24 h post-injection of free Ce6, gelatin–Ce6-2, or gelatin–Ce6-8. Scale bar represents 20 μm