developed a dual‐nanoparticle system (MP@PPS NPs) by combining ROS‐responsive poly(propylene sulfide) nanoparticles (PPS NPs) separately loaded with the STING agonist MSA‐2 or the photosensitizer PPa, achieving a synergistic photo‐immunotherapeutic response in the B16F10 melanoma model.[120] PPS NPs were synthesized via emulsion polymerization of poly(propylene sulfide) and Pluronic F127. This evidence concerns the gene STING1 and melanoma.