Seta dyes show much higher signal enhancement (SE) on silver surfaces (SIFs) (SE > 15) compared to fluorophores such as Cy5TM, AlexaTM 647 or phycobillproteins (PE, APC) (SE ~ 6 - 7):
SIF-coated vs. non-coated glass fluorescence signal ratio at various wavelengths for the model immunoassays using Seta-670 (K8-1342) (A) and Seta-635 (K8-1669) (B)