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A simple and feasible electrochemical sensing protocol was developed for the detection of bisphenol A (BPA) by employing the gold nanoparticles (AuNPs), prussian blue (PB) and functionalized carbon nanotubes (AuNPs/PB/CNTs-COOH). An aminated complementary DNA as a capture probe and specific aptamer against BPA as a detection probe was immobilized on the surface of a modified glassy carbon (GC) electrode...
Here, a highly sensitive electrochemical aptasensor based on a novel signal amplification strategy for the determination of bisphenol A (BPA) was developed. Construction of the aptasensor began with the deposition of highly dispersed platinum nanoparticles (PtNPs)/acid-oxidized carbon nanotubes (CNTs–COOH) functionalized with polyethyleneimine (PEI) at the surface of glassy carbon (PtNPs/PEI/CNTs–COOH/GC)...
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