Advances in Potentiometric Biosensors for Foodborne Bacterial Detection

Due to their effect on human health, rapid, sensitive, and accurate methods for detecting foodborne bacterial pathogens are becoming increasingly important. There are more than 250 types of bacterial foodborne disease, including more than 90% of outbreaks of foodborne illness worldwide, which is considered to be one of the greatest threats to public health.  Among the diagnostic methods, electrochemical biosensors have features that make them very efficient in designing and manufacturing biosensors. Potentiometric biosensors have been recognized for their effectiveness in detecting analytes with low cost, ease of use, and simple instrumentation. This article reviews key advances in potentiometric biosensors of foodborne bacterial pathogens. The categorization of different potentiometric biosensors is done on the basis of various foodborne bacterial pathogens involving Escherichia coli, Staphylococcus aureus, Listeria monocytogenes, and Salmonella typhimurium.