Fig. 4From: Gelatin–chlorin e6 conjugate for in vivo photodynamic therapyIn vivo real-time near-infrared fluorescence (NIRF) imaging of gelatin–Ce6 in SCC-7 tumor-bearing mice. a Time-dependent whole body NIRF images of mice bearing SCC-7 tumors after intravenous injection of free Ce6, gelatin–Ce6-2, or gelatin–Ce6-8. b Time-dependent fluorescence intensity analysis of the tumor site according to time (n = 3). *p < 0.01. c NIRF images of blood samples from the mice (left) and quantification of fluorescence intensity (right). *p < 0.01Back to article page