Fig. 5
From: Targeting and sensitizing MDR cancer by an MMP2 and pH dual-responsive ZnO-based nanomedicine
A Biodistribution of Cy5.5-labeled ZnO/DOX (a) and ZnO/DPPG/PEG-pp-PE/DOX (b) in the NCI/ADR-RES tumor-bearing nude mice (n = 3) after intravenous injection. B Ex vivo fluorescent images and intensities of the excised tumors and major organs at 24 h post administration. Data were expressed as the mean ± SD, **p < 0.01; ***p < 0.001