Figure 4.
TEM of MTG-B tumor fixed in glutaraldehyde 22.5 hours post injection of nanoparticles into the tumor. At incubation times greater than three hours in MTG-B tumors, few nanoparticles are seen outside of cells. There appears to be little difference in IONP particle position in MTG-B tumors with four or more hours of incubation post-injection.