Figure 8

Histological investigation.

(a) Tumor without any treatment. (b) Magnified image of the area indicated by the rectangle in (a). (c,f) Tumors after being treated with AuNDs-assisted PPTT for either 5 minutes or 2 days. (d,e,g,h) Magnified images of the areas indicated by the solid and dotted-dashed rectangles in (c,f).