Biosensor Detection Methods for Salmonella: a Review

Abstract

Salmonella is a pathogenic bacterium capable of causing serious food-borne illness, which has caused worldwide concern. It can enter the food supply chain at various stages of production, distribution, and marketing. Due to its high prevalence, it is necessary to develop effective and efficient methods for the identification, detection, and monitoring of Salmonella at an early stage. While traditional detection technologies often have long detection times, complex operation and low sensitivity, emerging biosensor technologies combine novel nanomaterials with signal amplification methods to achieve improved performance. Biosensors show several advantages over traditional assays in terms of specificity, accuracy, and sensitivity and show superiority in rapid response. They are now seen as promising alternative tools since they are accessible and applicable approaches for rapid detection. In recent years, there has been a boom in the development of biosensors for the detection of foodborne Salmonella. This paper focuses on the comparison of new methods for the detection of optical and electrochemical biosensors in recent years, analyzes the different separation strategies and determination methods used, and provides an outlook on the future development of biosensors for the detection of Salmonella.