Duplex EIS Sensor for <i>Salmonella Typhi</i> and <i>Aflatoxin B1</i> Detection in Soil Runoff.

ABSTRACT: Monitoring contamination in soil and food systems remains vital for ensuring environmental and public health, particularly in agriculture-intensive regions. Existing laboratory-based techniques are often time-consuming, equipment-dependent, and impractical for rapid on-site screening. In this study, we present a portable, non-faradaic electrochemical impedance-based sensing platform capable of simultaneously detecting Salmonella Typhimurium (S. Typhi) and Aflatoxin B1 in spiked soil run-off samples. The system employs ZnO-coated electrodes functionalized with crosslinker for covalent antibody immobilization, facilitating selective, label-free detection using just 5 µL of sample. The platform achieves a detection limit of 1 CFU/mL for S. Typhi over a linear range

SUBMITTER: Mishra KK 

PROVIDER: S-EPMC12562585 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature