Nanohybrid of antimonene@TiCT-based electrochemical aptasensor for lead detection.

Lead ions (Pb), as one of many common heavy metallic environmental pollutants, can cause serious side-effects and result in chronic poisoning to people's health, so it is highly significant to monitor Pb efficiently and sensitively. Here, we proposed an antimonene@TiCT nanohybrid-based electrochemical aptamer sensor (aptasensor) for high sensitive Pb determination. The sensing platform of nanohybrid was synthesized by ultrasonication, possessing the advantages of both antimonene and TiCT, which not only can vastly enlarge the sensing signal of the proposed aptasensor, but also greatly simplified its manufacturing flow, because antimonene can strongly interact with aptamer through noncovalently bound.