Electrochemical detection of a pathogenic Escherichia coli specific DNA sequence based on a graphene oxide–chitosan composite decorated with nickel ferrite nanoparticles

Abstract

An electrochemical genosensor has been fabricated for<italic>Escherichia coli</italic>O157:H7 detection using a graphene oxide–nickel ferrite–chitosan nanocomposite electrophoretically deposited on an ITO coated glass substrate.