Rapid and Cost-Effective Fabrication of Biosensors for Salmonella Detection

Ensuring food safety is of predominant importance, and the realization of user-friendly and rapid detection methods of pathogens plays a critical role in this effort. Salmonella Typhimurium (S. Typhimurium) has the highest incidence rate among all Salmonella infections. In this paper, a cost-effective biosensor for the quantitative detection of S. Typhimurium is proposed based on a rapid manufacturing process. Gold leaf electrodes (GLEs) based impedimetric immunosensor have been developed and validated for highly sensitive and specific detection of S. Typhimurium with a detection limit of 10
²
cfu/mL.