Figure 11.
(A) Procedure and electrochemical detection principle of the cadmium aptasensor based on carbon black (CB) and gold nanoparticles (AuNPs) application. Reprinted from Fakude CT, Arotiba OA, Mabuba N. Electrochemical aptasensing of cadmium (II) on a carbon black-gold nano-platform. J Electroanal Chem. 2020;858:113796. Copyright 2020, with permission from Elsevier.145 (B) Schematic illustration of cadmium detection by electrochemical aptasensor based on diazonium electrodeposition. Reprinted from Rabai S, Benounis M, Catanante G, et al. Development of a label-free electrochemical aptasensor based on diazonium electrodeposition: application to cadmium detection in water. Anal Biochem. 2020;612:113956. Copyright 2020, with permission from Elsevier.149