A multi-functional nano-platform based on LiGa4.99O8:Cr0.01/IrO2 with near infrared-persistent luminescence, “afterglow” photodynamic and photo-thermal functions

LGO:Cr/IrO 2 shows NIR-persistent luminescence, a PTT effect under NIR irradiation, and a continuous “afterglow” PDT effect without the need for in situ excitation owing to persistent energy transfer from LGO:Cr to the IrO 2 , in turn generating ROS.