Electrochemical Detection of Enterobactin as a Biomarker for Escherichia coli with a Hydrogel and Nanoparticle Layer-based Sensor

Pathogenic strains of Escherichia coli (E. coli) are a major threat to human health causing foodborne and waterborne diseases from
gastrointestinal symptoms and diarrhea to even fatal hemolytic uremic syndrome. Enterobactin (Ent) is the principal siderophore secreted by
E. coli, important in bacterial growth, replication and infection process, being also electrochemically active. Its rapid detection could allow the
development of portable devices for on-field testing of bacteria contamination with applications in environmental, industrial and clinical
settings.