Ultrasensitive photoelectrochemical aptasensor for diclofenac sodium based on surface-modified TiO2-FeVO4 composite. - Yang, Liwei; Li, Lele; Li, Fen; Zheng, Hejie; Li, Tongtong; Liu, Xiaoqiang; Zhu, Jichun; Zhou, Yanmei; Alwarappan, Subbiah (Analytical & Bioanalytical Chemistry, 2021)