Prussian blue-stained in tumor tissue of nude mice with nasopharyngeal carcinoma after administration of (a) FA-NIR 797-MAN, (b) NIR 797-MAN and (c) FA-NIR-797-MAN+FA at 72 h injection (×200 magnification) (the arrow indicates the blue-stained iron particles).

<p>Prussian blue-stained in tumor tissue of nude mice with nasopharyngeal carcinoma after administration of (a) FA-NIR 797-MAN, (b) NIR 797-MAN and (c) FA-NIR-797-MAN+FA at 72 h injection (×200 magnification) (the arrow indicates the blue-stained iron particles).