Surface-enhanced Raman scattering in art and archaeology

Marco Leona

doi:10.1117/12.633684

8 November 2005 Surface-enhanced Raman scattering in art and archaeology

Marco Leona

Proceedings Volume 5993, Advanced Environmental, Chemical, and Biological Sensing Technologies III; 59930L (2005) https://doi.org/10.1117/12.633684
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

The identification of natural dyes found in archaeological objects and in works of art as textile dyes and lake pigments is a demanding analytical task. To address the problems raised by the very low dye content of dyed fibers and lake pigments, and by the requirement to remove only microscopic samples, surface enhanced Raman scattering techniques were investigated for application to museum objects. SERS gives excellent results with the majority of natural dyes, including: alizarin, purpurin, laccaic acid, carminic acid, kermesic acid, shikonin, juglone, lawsone, brazilin and brazilein, haematoxylin and haematein, fisetin, quercitrin, quercetin, rutin, and morin. In this study, limits of detection were determined for representative dyes and different SERS supports such as citrate reduced Ag colloid and silver nanoisland films. SERS was successfully used to identify natural madder in a microscopic fragment from a severely degraded 11^th Century Byzantine textile recently excavated in Amorium, Turkey.

Citation Download Citation

Marco Leona "Surface-enhanced Raman scattering in art and archaeology", Proc. SPIE 5993, Advanced Environmental, Chemical, and Biological Sensing Technologies III, 59930L (8 November 2005); https://doi.org/10.1117/12.633684

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