Synthesis and characterisation of fluorescent and biocompatible hydroxyapatite nanoparticles with cerium doping

In this work, the fluorescent hydroxyapatite nanoparticles (HA NPs) were synthesised by doping cerium (Ce) ions into the crystal structure of HA at different concentrations. The fluorescent property of the Ce-doped HA NPs was determined by the content of Ce doping. The results show that HA NPs with the Ce-doping content of 5% displayed the highest fluorescent emission peak near 380 nm at the excitation wavelength of 300 nm. The CCK-8 assay...