Electrochemical aptasensor forEscherichia coliO157:H7 bacteria detection using a nanocomposite of reduced graphene oxide, gold nanoparticles and polyvinyl alcohol

A new aptamer-based electrochemical sensor was proposed to detectEscherichia coliO157:H7 (E. coli), one of the most threatening bacterial pathogens, using glassy carbon electrode modified with nanoparticles.