Pathogenic bacteria are a major cause of foodborne diseases, which not only seriously threaten human safety but also cause significant losses for the national economy. Therefore, it is very important and urgent to develop a method for the detection of pathogenic bacteria with high accuracy, high sensitivity, and easy interpretation for use in food safety and medical hygiene. Herein, based upon the sensitive color changes induced by the dispersion and aggregation states of gold nanoparticles (AuNPs), a point-of-care (POCT) colorimetric assay was constructed for the rapid and sensitive visual de...
