Fig. 1
From: CXCR4 peptide-based fluorescence endoscopy in a mouse model of Barrett’s esophagus
Structure (left) and Sulfo-Cy5 signal assessment (right) of the CXCR4-targeted fluorescent ligand MK007. For the assessment of fluorescence signal before mouse endoscopy, Sulfo-Cy5 MK007 1 mM was diluted in 0.9% NaCl to obtain a final concentration of 400 nmol/mL and measurement was performed using a 670 nm laser diode and a highly sensitive CCD camera. NaCl alone showed no fluorescence signal