Figure 2. NIRF imaging of early-stage orthotopic colon tumors.
(a) Representative colon images of AOM-induced orthotopic colon cancer models after intravenous injection of Cy5.5-P-HA-NPs. White and red arrows indicate adenomas and adenocarcinomas, respectively. (b) Representative histological images of normal colon, adenoma and adenocarcinoma slices stained using hematoxylin and eosin.