Figure 7From: Uptake and fate of surface modified silica nanoparticles in head and neck squamous cell carcinomaRu@SiO 2 -OH and Ru@SiO 2 -NH 2 nanoparticle uptake in multicellular spheroids. Uptake of nanoparticles in UMB-SCC 745 multicellular spheroids after 5 hours. Confocal laser scanning microscopy pictures, showing Ru@SiO2-OH (A) and Ru@SiO2-NH2 (B) in red and cell nuclei in blue. Scale bars = 100 μm.Back to article page