Biodegradable Calcium Phosphate Nanotheranostics with Tumor‐Specific Activatable Cascade Catalytic Reactions‐Augmented Photodynamic Therapy

Photodynamic therapy (PDT) is exploited as a promising strategy for cancer treatment. However, the hypoxic solid tumor and the lack of tumor‐specific photosensitizer administration hinder the further application of oxygen (O 2 )‐dependent PDT. In this study, a biodegradable and O 2 self‐supplying nanoplatform for tumor microenvironment (TME)‐specific activatable cascade catalytic reactions‐augmented PDT is reported. The nanoplatform (named GMCD)...