Fig. 3From: Rational design of Raman-labeled nanoparticles for a dual-modality, light scattering immunoassay on a polystyrene substrateRaman reporter selection and polystyrene peak overlap. To avoid substrate interference, Raman reporters were selected that had very little peak overlap with the Raman spectrum of polystyrene. Major peaks observed in the polystyrene spectra are found at 620 cm−1, 1002cm−1, and 1032 cm−1 Back to article page