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A pattern of signal amplification lateral flow immunoassay (LFIA) for pathogen detection, which used fluorescein isothiocyanate (FITC) labeled antigen and antibody for dual FITC-LFIA was developed. Escherichia coli O157:H7 (E.coli O157:H7) was selected as the model analyte. In the signal amplification LFIA method, FITC was mixed with sample culture medium, with the presence of E.coli O157:H7 in the...
A simple, one-step, rapid method to detect Escherichia coli O157: H7 (E. coli O157: H7) using a label-free immunofluorescence strip sensor is presented. Fluorescein isothiocyanate (FITC) was added to the sample culture medium to prepare the fluorescent probe for the label-free strip sensor. With the presence of E. coli O157: H7 in the samples, the bacteria could emit a yellow-green fluorescence after...
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