Figure 7From: Europium-doped amorphous calcium phosphate porous nanospheres: preparation and application as luminescent drug carriers Viabilities of PIECs which were cultured for 24 h with ACP/PLA-mPEG hybrid nanoparticles, ACP porous nanospheres, and 5 mol% Eu 3+ -doped ACP porous nanospheres at concentrations ranging from 0.3 to 0.9 mg/well.Back to article page