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The characterization of photographic materials as substrates for surface enhanced Raman spectroscopy.

Vaughan, J.; Hortin, N.; Christie, S.; Kvasnik, F.; Scully, P. J

Journal of Optics A: Pure and Applied Optics. 2005;7:S425-S431.

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Abstract

In this study, five types of photog. materials were obtained from com. sources and characterized for use as substrates for surface enhanced Raman spectroscopy. The substrates are photog. emulsions coated on glass or paper support. The emulsions were developed to maximize the amt. of metallic silver aggregated into clusters. The test analyte, Cresyl Violet, was deposited directly onto the substrate surface. The permeable nature of the supporting gelatin matrix enables the interaction between the target analyte and the solid silver clusters. The surface enhanced Raman spectra a 2.75 * 10-7 M concn. of Cresyl Violet in ethanol were obtained using these photog. substrates. The Raman and resonant Raman enhancement of Cresyl Violet varies from substrate to substrate, as does the ratio of Raman to resonant Raman peak heights. [on SciFinder (R)]