Fig. 2From: Quantification and visualization of cellular uptake of TiO2 and Ag nanoparticles: comparison of different ICP-MS techniquesNP Characterization. TEM images of TiO2 7 nm (a); TiO2 20 nm (b); Ag 50 nm (c); Ag 75 nm (d). Images c and d were taken from NanoComposix with kind permission. Size distribution of TiO2 (e) and Ag NPs (f) in water and complete cell culture medium (CCM) as measured by DLSBack to article page