A robust electrochemical immunosensor based on hydroxyl pillar[5]arene@AuNPs@g-C3N4 hybrid nanomaterial for ultrasensitive detection of prostate specific antigen

Schematic illustrating the synthesis of the HP5@AuNPs@g-C3N4 hybrid nanomaterial (a), Ab2 bioconjugates (b), and the fabrication process of the electrochemical immunosensor (c).261