Fig. 6
From: Tiny Rare-Earth Fluoride Nanoparticles Activate Tumour Cell Growth via Electrical Polar Interactions
2D-FFT spectra of z-height distribution of dried RE-NPs in DMEM+FBS media evincing the presence of small-sized NPs in the liquid suspensions. a, b z-height distribution of PrF3 NPs from AFM images, Fig. 2(a1, b1). Small z-height features (~ 5 nm) were identified in (b). c, d z-height distribution of LaF3 NPs from AFM images, Fig. 2(c1, d1). e, f Power spectra of z-height wave vectors of PrF3 NPs along the x-axis. g, h Power spectra of z-height wavevectors of LaF3 NPs along the x-axis