developed a rationally designed polymersome‐grafted type I photosensitizer (PNBS) for loading STING agonists, creating nanovesicles (termed PNBS/DiABZI) for enhanced cancer immunotherapy.[117] The PNBS could orient type I photosensitizers (capable of generating ROS via oxygen‐independent electron transfer) towards H‐aggregation and intersystem crossing, extending the lowest‐energy triplet excited states and resulting in a ≈3‐fold increase in ROS yield for PDT.[117] The STING agonist diABZI was loaded via the nanoprecipitation method. Here, STING1 is linked to cancer.