Identification of dye content in colored BIC ballpoint pen inks by Raman spectroscopy and surface-enhanced Raman scattering

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dc.check.date2019-11-08
dc.check.infoAccess to this article is restricted until 12 months after publication at the request of the publisher.en
dc.contributor.authorAlyami, Abeer
dc.contributor.authorBarton, Killian
dc.contributor.authorLewis, Liam
dc.contributor.authorMirabile, Antonio
dc.contributor.authorIacopino, Daniela
dc.contributor.funderHorizon 2020en
dc.date.accessioned2019-01-14T11:59:45Z
dc.date.available2019-01-14T11:59:45Z
dc.date.issued2018-11-08
dc.description.abstractRaman spectroscopy and surface‐enhanced Raman scattering (SERS) were used for the elucidation of dye content in commercial BIC ballpoint pens. In contrast to the majority of studies in this field on black and blue inks of forensic interest, this paper targeted characterization of colored (red, pink, purple, and green) pen inks, increasingly used for artistic purposes. Because of its not invasive nature, the capabilities of Raman spectroscopy were initially tested. However, overall SERS provided enhanced spectral features and quenching of fluorescence necessary for the unequivocal identification of dye mixtures in all analyzed pens. SERS analysis was carried out in situ, by deposition of Ag nanopastes directly on pen colored paper surfaces. Rhodamine B was identified as the main dye component in red, pink, and purple inks, whereas phthalocyanine dye Blue 38 was identified in all green inks; excitation at different wavelengths revealed that the darker hue of purple ink was achieved by addition of crystal violet to red Rhodamine B and that green hues were achieved by addition of yellow dyes to Blue 38. UV–vis spectroscopy and thin‐layer chromatography analyses complemented Raman/SERS measurements by revealing the presence of additional yellow/orange and blue components in red and green inks, respectively. The relevance of this analysis for art diagnostics was demonstrated through the real noninvasive analysis of BIC pens drawings, which led to successful identification of chemical ink composition and identification of production medium.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAlyami, A., Barton, K., Lewis, L., Mirabile, A. and Iacopino, D. (2019) 'Identification of dye content in colored BIC ballpoint pen inks by Raman spectroscopy and surface-enhanced Raman scattering', Journal of Raman Spectroscopy, In Press, doi:10.1002/jrs.5512en
dc.identifier.doi10.1002/jrs.5512
dc.identifier.endpage29en
dc.identifier.issn0377-0486
dc.identifier.issn1097-4555
dc.identifier.journaltitleJournal of Raman Spectroscopyen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/7290
dc.language.isoenen
dc.publisherWileyen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::IA/646063/EU/NANOmaterials for the REStoration of works of ART/NANORESTARTen
dc.relation.urihttps://onlinelibrary.wiley.com/doi/10.1002/jrs.5512
dc.rights© 2018 John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: ‘Identification of dye content in colored BIC ballpoint pen inks by Raman spectroscopy and surface‐enhanced Raman scattering’, J Raman Spectrosc, 2018, which has been published in final form at https://doi.org/10.1002/jrs.5512. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.en
dc.subjectAg nanopastesen
dc.subjectArt conservationen
dc.subjectBIC ballpointen
dc.subjectRaman spectroscopyen
dc.subjectSERSen
dc.subjectUV–visen
dc.titleIdentification of dye content in colored BIC ballpoint pen inks by Raman spectroscopy and surface-enhanced Raman scatteringen
dc.typeArticle (peer-reviewed)en
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