Fig. 3
From: Artificial intelligence enhanced electrochemical immunoassay for staphylococcal enterotoxin B

A Dimensions of the SPE. B The cross-linking reaction between cysteamine and glutaraldehyde on the surface of the working electrode. C Following antibody incubation, ethanolamine is introduced for blocking, after which antigen binding to the antibody occurs. D An electrochemical reaction takes place when the electrode is immersed in a 5 mM \(\hbox {K}_{3}[\hbox {Fe}\hbox {(CN)}_6]\) solution and connected to an electrochemical workstation.