Research progress in fluorescent biosensor technology for detecting Escherichia coli based on PCR

Purpose In recent decades, advancements in biosensors technology have made fluorescent biosensor pivotal for biomolecular recognition. This paper aims to provide an in-depth analysis of polymerase chain reaction (PCR) fluorescent biosensor detection technology for identifying Escherichia coli ( E. coli ), setting the stage for future developments in the field. Design/methodology/approach The review of literature on PCR fluorescent biosensor detection technology for E. coli over the past decades includes discussions on traditional biological fluorescent detection, quantitative PCR fluorescent detection and digital fluorescent detection technology. Findings Advancements in fluorescent biosensor technology enable precise measurement of fluorescent signals, and when integrated with microfluidic technology, produce compact, reagent-efficient digital sensor devices. Originality/value This paper provides a comprehensive review of recent fluorescent detection technology for pathogenic E. coli , assessing method efficiencies and offering insights to advance the field.