Carboxyl of Poly(D,L-lactide-co-glycolide) Nanoparticles of Perfluorooctyl Bromide for Ultrasonic Imaging of Tumor

Figure 8

Histologic fluoroscopy images of frozen sections after nuclear labeling. Many coumarin-6-labeled NPs (green) were observed in the tumor intercellular space (a); coumarin-6-labeled MPs were hard to detect in the tumor intercellular space (b). Blue represents nuclear staining.

(a)

(b)