Quantitative immunoassay of prostate-specific antigen dependent on SERS substrate of polymer-silver nanocubes modified with 4-mercaptobenzoic acid: The crucial effect of thiol molecule as internal standard. - Lan, Wenting; Lai, Changgan; Dai, Yasheng; Fu, Shijiao; Gu, Chenjie; Jiang, Tao; Pan, Yuning (Talanta, 2025)