Bacteriophage-based nano-biosensors for the fast impedimetric determination of pathogens in food samples.

ABSTRACT: The early and rapid detection of pathogenic microorganisms is of critical importance in addressing serious public health issues. Here, a new bacteriophage-based nano-biosensor was constructed and the electrochemical impedimetric method was fully optimized and applied for the quantitative detection of Escherichia coli O157:H7 in food samples. The impact of using a nanocomposite consisting of gold nanoparticles (AuNPs), multi-walled carbon nanotubes (MWCNTs), and tungsten oxide nanostructures (WO₃) on the electrochemical performance of disposable screen printed electrodes was identified using the cyclic voltammetry and electrochemical impedance spectroscopy. The use nanomaterials enabled high capturing sensitivity against the targeting bacterial host cells with the limit of detect

SUBMITTER: Abdelhamied N 

PROVIDER: S-EPMC9977096 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature