Fig. 1
From: Recent advances in near-infrared II imaging technology for biological detection
Dual-NIR-IIa and NIR-IIb fluorescence imaging-guided sentinel LN resection. a–c The optical properties of DAD dye and PbS QDs. d Schematic illustration of imaging-guided sentinel LN resection. The DAD probe was injected intravenously, and then the QDs were injected into the tumor. e The photostability of the DAD dye and PbS QDs. f Color testing of the dual-NIR-IIa and NIR-IIb probes. g Fluorescence images of QDs and ICG. [73]