Fig. 2From: Gold-based nanoplatform for a rapid lateral flow immunochromatographic test assay for gluten detectionSynthesis and characterization of AuNPs with different methods (a and b). Schematic of the fabrication method. (c) FESEM images of the AuNPs without antibody; (d) Diagram of the size distribution of AuNPs based on measurement of the diameter of 800 AuNPs; (e) Dynamic light scattering analysis for determination of the z-average hydrodynamic diameter of the AuNPsBack to article page