Fig. 5From: Gold-based nanoplatform for a rapid lateral flow immunochromatographic test assay for gluten detection(a and b) FESEM images of antibody-conjugated AuNPs and (c) UV–Vis absorbance spectra of the AuNPs before (blue line) and after (red line) antibody conjugation, using the pre-determined optimal conditions for binding of antibodies to the AuNPsBack to article page