A dual-mode PCT electrochemical immunosensor with CuCo2S4 bimetallic sulfides as enhancer

A method for the detection of procalcitonin (PCT) with improved accuracy is urgently needed. A dual-mode electrochemical immunosensor with CuCo 2 S 4 –Au bimetallic sulfides as enhancer for accurate detection of PCT was fabricated in this work. The immunosensor not only displays a heavy square wave voltammetry (SWV) signal due to the electron transfer of Cu 2+ and Cu + but not the addition of electron mediators. But also presents high...