Paper published as part of the Art and Archaeology 2009 special issue.
Extractionless non-hydrolysis surface-enhanced Raman spectroscopic detection of historical mordant dyes on textile fibers†
Article first published online: 28 MAR 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Special Issue: Raman spectroscopy in art and archaeology
Volume 41, Issue 11, pages 1455–1461, November 2010
How to Cite
Jurasekova, Z., del Puerto, E., Bruno, G., García-Ramos, J. V., Sanchez-Cortes, S. and Domingo, C. (2010), Extractionless non-hydrolysis surface-enhanced Raman spectroscopic detection of historical mordant dyes on textile fibers. J. Raman Spectrosc., 41: 1455–1461. doi: 10.1002/jrs.2651
- Issue published online: 17 NOV 2010
- Article first published online: 28 MAR 2010
- Manuscript Accepted: 9 FEB 2010
- Manuscript Received: 12 SEP 2009
- mordant dyes;
Alizarin and carminic acid have been detected in reference wool and linen fibers dyed with madder and cochineal, respectively, through surface-enhanced Raman scattering (SERS) measurements carried out directly on the fiber, without previous hydrolysis of the mordant-dye complex. For such purpose, Ag nanoparticles were produced and immobilized in situ via the laser photoreduction of a silver nitrate aqueous solution in contact with the fiber. Control SERS spectra of pure dyes (alizarin, purpurin and carminic acid, as well as of mixtures of the first two) on similar Ag nanoparticles were also obtained. The method has been applied to one archeological Coptic textile (6th–8th A.D.) of Egyptian origin, where alizarin has been clearly identified. Other mordant dyes of the flavonoids family (luteolin, apigenin and flavonols) have also been identified by the same SERS method in wool fibers dyed with natural plants, mainly used in Central and South America (Dyer's greenweed, old fustic, onion and chilca) following pre-Columbian dying recipes. Copyright © 2010 John Wiley & Sons, Ltd.