Long‐Term Oxygen Storage Nanosystem for Near‐Infrared Light‐Triggered Oxygen Supplies to Antagonize Hypoxia‐Induced Therapeutic Resistance in Nasopharyngeal Carcinoma

O 2 ‐delivering nanosystems have been used to antagonize hypoxia‐induced tumor therapeutic resistance. However, short‐time oxygen storage is still a bottleneck for these O 2 ‐delivering nanosystems, which results in a decrease in blood circulation time and accumulation of oxygen in tumors, thus reducing the tumor therapeutic efficacy. Herein, a long‐term oxygen storage nanosystem (O 2 ‐PIr@Si@PDA) is designed to overcome hypoxia for the...