Why are the trees blue?

Hello Everyone!

Over the past few weeks I have been working towards perfecting a procedure to simulate surface enhanced Raman spectroscopy of an organic yellow art sample.  Many organic yellow dyes produce beautiful SERS spectra with the traditional procedure, involving the coating of a minute sample with centrifuged silver nanoparticles and shooting a laser beam directly onto the particle.  However, lake pigments involve the mordanting of a dye with an inorganic binding medium, making it difficult for the silver nanoparticles to interact properly with the surface of the dye molecules and produce accurate spectra.

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