Figure 6.
Biosafety of PbS QDs labeled ADSCs. (A1–D1) Bright field photographs and (A2–D2) NIR-II fluorescence images of major organs harvested from the rats in the control group and experimental group at 1 d, 1 m, and 2 m post-injection. (E) Representative HandE staining of major organs (collected and at 1 d, 1 m, and 2 m post-injection) of the rats injected with PbS QDs labeled ADSCs and the control group (scale bars represent 100 μm).
