Defect-engineered Fe3O4@SnO2 nanozyme microneedles couple local photothermal-photodynamic therapy with redox-amplified ferroptosis
Localized nanocatalytic therapy is constrained by insufficient reactive oxygen species (ROS) output, tumor antioxidant buffering, and poor retention of therapeutic agents at the lesion. Here, we report an oxygen-deficient Fe 3 O 4 @SnO 2 nanozyme (HFC) co-delivered with gallic acid (GA) through dissolving poly(...