CD274 and neoplasm: designed a pH and MMP‐2 dual‐responsive nanoparticle for tumor‐targeting codelivery of nanosensitizers and immune checkpoint inhibitors.[100b] Specifically, they encapsulated sonosensitizer Ce6 into a core–shell lipid micelle via a nanoprecipitation method and conjugated anti‐PD‐L1 antibody to micelle through MMP‐2‐cleavable peptide linker, where an acid‐labile PEG outer layer was finally coated and P‐aPD‐L1/C was fabricated completely.