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Surface-enhanced Raman scattering spectra of tomato epidermis on gold/ silver sol active substrate

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In this paper, tomato epidermis’ surface-enhanced Raman scattering spectra were measured on gold and silver active substrates and analyzed. Preparing and using gold sol and silver sol in similar particle diameters (about 50-60nm), three comparable Raman spectra were obtained. Silver sol and gold sol can both increase Raman scattering signal of tomato epidermis. Through the Raman spectra, silver sol has greater enhancement ability than gold sol to tomato epidermis.

© 2011 Optical Society of America

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