Au/TiO-based molecularly imprinted photoelectrochemical sensor for dibutyl phthalate detection.

A photoelectrochemical molecular imprinting sensor based on Au/TiO nanocomposite was constructed for the detection of dibutyl phthalate. Firstly, TiO nanorods were grown on fluorine-doped tin oxide substrate by hydrothermal method. Then, gold nanoparticles were electrodeposited on TiO to fabricate Au/TiO.

Photoelectrochemical aptasensor based on nanocomposite of CdSe@SnS for ultrasensitive and selective detection of sulfamethazine.

A photoelectrochemical (PEC) aptasensor based on CdSe@SnS nanocomposite has been developed to detect sulfamethazine (SMZ). The introduction of CdSe into SnS displayed an amplified PEC signal, which was higher than that of pure CdSe and SnS, attributable to its enhanced light harvesting capacity and promoted PEC energy conversion efficiency. Due to the formation of specific non-covalent bonds, the SMZ-binding aptamer (SBA) has significant specificity and sensitivity.