MUC1 and posterior cortical atrophy: For example, MoS2 QDs facilitate two-photon luminescence imaging of prostate-specific membrane antigen (PSMA)-positive tumors at subcellular resolution [40], while copper indium sulfide (CuInS2) QDs conjugated with mucin 1 (MUC1) aptamers enable dual imaging and chemotherapeutic monitoring in PCa cells [16].