
Keywords: Aptasensor; Gold–platinum nanoparticles; Dopamine; Methylene blueDA, dopamine; CNT, carbon nanotube; Au–PtNP, gold–platinum alloy nanoparticle; GC, glassy carbon; CNTs–COOH, acid-oxidized carbon nanotubes; MB, methylene blue; HAuCl4⋅4H2O, hydrogen tetrach