Plasmonic colloidal pastes for surface-enhanced Raman spectroscopy (SERS) of historical felt-tip pens

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dc.contributor.authorSaviello, Daniela
dc.contributor.authorAlyami, Abeer
dc.contributor.authorTrabace, Maddalena
dc.contributor.authorGiorgi, Rodorico
dc.contributor.authorBaglioni, Piero
dc.contributor.authorMirabile, Antonio
dc.contributor.authorIacopino, Daniela
dc.contributor.funderIrish Research Council
dc.contributor.funderHorizon 2020
dc.date.accessioned2018-05-02T10:16:24Z
dc.date.available2018-05-02T10:16:24Z
dc.date.issued2018
dc.description.abstractSurface-enhanced Raman spectroscopy (SERS) has been identified as a suitable technique for the analysis of colorants in works of art. Herein, the application of SERS to the identification of dye compositions in historical felt-tip pens is reported, which is of paramount importance for the development of appropriate conservation protocols for historical drawings. In this study, three pens (pink, green, and blue colors) belonging to the film director Federico Fellini were analyzed. SERS measurements were performed directly on the pen lines drawn on a commercial paper by the deposition of Ag colloidal pastes, which allowed fast in situ dye identification without the need for extraction or hydrolysis treatments. Eosin Y was identified as the only dye present in the pink pen ink, whereas erioglaucine was found to be the main dye component in green and blue pen inks. SERS also resulted in highly efficient identification of the individual dyes erioglaucine, crystal violet, and rhodamine present as a mixture in the blue pen ink. The high SERS sensitivity was ascribed to the plasmonic effects and efficient quenching of the fluorescence interference of dyes. A comparison with contemporary pen inks highlighted minor differences in the chemical composition. These results prove that SERS can be used as a fast and sensitive analytical tool for ink analysis that provides invaluable support for the general assessment of the date, provenance, and originality of the historical drawings as well as for the development of preventive conservation protocols.en
dc.description.sponsorshipIrish Research Council (GOIPD/2015/716)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSaviello, D., Alyami, A., Trabace, M., Giorgi, R., Baglioni, P., Mirabile, A. and Iacopino, D. (2018) 'Plasmonic colloidal pastes for surface-enhanced Raman spectroscopy (SERS) of historical felt-tip pens', RSC Advances, (15), 8, pp. 8365-8371. doi: 10.1039/c7ra13464aen
dc.identifier.doi10.1039/c7ra13464a
dc.identifier.endpage8371
dc.identifier.issn2046-2069
dc.identifier.issued15
dc.identifier.journaltitleRSC Advancesen
dc.identifier.startpage8365
dc.identifier.urihttps://hdl.handle.net/10468/5939
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::IA/646063/EU/NANOmaterials for the REStoration of works of ART/NANORESTART
dc.relation.urihttp://pubs.rsc.org/en/Content/ArticleLanding/2018/RA/C7RA13464A#!divAbstract
dc.rights© 2018, Royal Society of Chemistry. This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence http://creativecommons.org/licenses/by/3.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectFelt-tip pensen
dc.subjectDye identificationen
dc.subjectPen inken
dc.subjectPlasmonic effecten
dc.subjectInk analysisen
dc.titlePlasmonic colloidal pastes for surface-enhanced Raman spectroscopy (SERS) of historical felt-tip pensen
dc.typeArticle (peer-reviewed)en
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