Simultaneous self-supply of H2O2 and GSH-depleted intracellular oxidative stress for enhanced photodynamic/photothermal/chemodynamic therapy.

Herein, we designed a new nanoplatform for combined PDT/PTT/CDT through simultaneously self-supplying H2O2 and depleting GSH using one single laser irradiation. The nanoplatform was capable of generating multiple reactive oxygen species (ROS), such as 1O2, O2-˙ and ˙OH, resulting in cell death. Moreover, the nanoplatform demonstrated low dark toxicity, high phototoxicity and better biosafety. In vivo animal experiments showed that the tumor growth was efficiently inhibited.