The schematic illustration of SLC-AN/SN@AQ NPs for three-pronged hypoxic radiosensitization of brain gliomas under BOLD/DWI monitoring. Benefiting from angiopep-2-mediated brain delivery, this nanoformulation enables an efficient combination of high Z-atom-dependent dose deposition enhancement, NO-mediated hypoxia relief, and AQ4N-induced hypoxia-activated chemotherapy under low-dose radiation. Meanwhile, in vivo 9.4 T BOLD/DWI realizes real-time dynamic assessment of local oxygen supply and treatment response of brain gliomas