Electrochemical/Voltammetric/Amperometric Nanosensors for the Detection of Pathogenic Bacteria

Abstract

Foodborne diseases caused by pathogenic bacteria and their metabolites pose a huge threat to the safety of public health all over the world. Rapid detection and accurate monitoring of pathogenic bacteria are of great significance to ensure food safety and prevent foodborne diseases. However, traditional detection approaches are expensive, labour intensive, and time-consuming, demanding trained workers to execute the frequently complex assays. In recent years, with the emergence of artificial intelligence and nanotechnology, electrochemical nanosensors have been greatly explored for rapid detection of pathogenic bacteria in food matrices. In this chapter, we have discussed a broad overview of recent and novel developments in electrochemical (voltammetric, amperometric, potentiometric, and amperometric) nanosensors for the detection of pathogenic bacteria. In the last few years, these nanosensors are frequently used for the detection of foodborne and waterborne pathogens because of their high sensitivity and precision. Further, the application of different nanostructured materials (carbon nanotubes, graphene, nanoparticle, metal oxides, etc.) in manufacturing of electrochemical nanosensors is also emphasized. In addition, challenges, achievements, and future perspective of these nanosensors have been discussed with the aim of extending their applications.