Fig. 4From: Facile Fabrication of BiF3: Ln (Ln = Gd, Yb, Er)@PVP Nanoparticles for High-Efficiency Computed Tomography ImagingStability and cytocompatibility of BiF3: Ln@PVP NPs. A The hydrodynamic diameter of BiF3: Ln@PVP NPs in DI and B PBS (pH 7.4). C Live-dead assay and D CCK-8 assay of the HepG2 cells treated with different concentrations of the BiF3: Ln@PVP NPs for 24 hBack to article page