Au@4-MBA@Ag NPs labeled SERS lateral flow immunoassay for ultrasensitive and quantitative detection of Salmonella enteritidis

MICROCHEMICAL JOURNAL(2023)

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Abstract
•A SERS immunochromatography was developed for the detection of S. enteritidis.•Au-core and Ag-shell sandwiched with 4-MBA nanoparticles was used as labels.•Qualitative and quantitative detection can be completed in 20 min.•The sensitivity is high with a LOD of 1.36 × 102 CFU mL−1.
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Key words
SERS,Salmonella enteritidis,Lateral flow immunoassay,Au@4-MBA@Ag NPs,Foodborne pathogen
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