Raman spectroscopy and Surface Enhanced Raman Scattering (SERS) for the analysis of blue and black writing inks: identification of dye content and degradation processes

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dc.contributor.author Saviello, Daniela
dc.contributor.author Trabace, Maddalena
dc.contributor.author Alyami, Abeer
dc.contributor.author Mirabile, Antonio
dc.contributor.author Baglioni, Piero
dc.contributor.author Giorgi, Rodorico
dc.contributor.author Iacopino, Daniela
dc.date.accessioned 2019-10-30T05:54:21Z
dc.date.available 2019-10-30T05:54:21Z
dc.date.issued 2019-10-25
dc.identifier.citation Saviello, D., Trabace, M., Alyami, A., Mirabile, A., Baglioni, P., Giorgi, R. and Iacopino, D. (2019), 'Raman Spectroscopy and Surface Enhanced Raman Scattering (SERS) for the Analysis of Blue and Black Writing Inks: Identification of Dye Content and Degradation Processes', Frontiers in Chemistry, 7, 727 (9pp) DOI: 10.3389/fchem.2019.00727 en
dc.identifier.volume 7 en
dc.identifier.startpage 1 en
dc.identifier.endpage 9 en
dc.identifier.uri http://hdl.handle.net/10468/8913
dc.identifier.doi 10.3389/fchem.2019.00727 en
dc.description.abstract Raman spectroscopy and Surface Enhanced Raman Scattering (SERS) were applied to the analysis of blue and black writing inks. SERS was performed by application of plasmonic nanopastes constituted by Ag nanoparticles and Au nanorods directly on inks deposited on paper substrates under laser irradiation of 514 nm. It was found that SERS spectra were largely enhanced compared to Raman spectra and that Ag nanopastes produced much larger enhancements than Au nanopastes, due to a combination of plasmonic resonance, charge transfer, and molecular resonance effects. All analyzed writing inks resulted constituted by Crystal Violet and other triarylmethane dye mixtures, to which sometimes phthalocyanine dyes were also added (for example in Bic pens). SERS was also used for the identification of degradation processes occurring in artificially aged blue pens deposited on paper substrates. It was found that color alteration changed from ink to ink and varied from darkening to discoloration to slight fading, depending on the initial chemical composition. For inks containing Crystal Violet, two mechanisms associated to de-methylation and photo-reduction of excited dye to colorless leuco forms were identified. en
dc.description.sponsorship Irish Research Council (project GOIPD/2015/716) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Frontiers Media en
dc.rights ©2019 Saviello, Trabace, Alyami, Mirabile, Baglioni, Giorgi and Iacopino. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject Ballpoint pens en
dc.subject Dyes en
dc.subject Raman en
dc.subject Plasmonic en
dc.subject Nanopastes en
dc.subject SERS en
dc.subject Degradation en
dc.title Raman spectroscopy and Surface Enhanced Raman Scattering (SERS) for the analysis of blue and black writing inks: identification of dye content and degradation processes en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Daniela Iacopino, Nanotechnology Group, Tyndall National Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email:daniela.iacopino@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.rssid 500166381
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Irish Research Council en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Frontiers in Chemistry en
dc.internal.IRISemailaddress daniela.iacopino@tyndall.ie en
dc.identifier.articleid 727 en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::IA/646063/EU/NANOmaterials for the REStoration of works of ART/NANORESTART en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::IA/814496/EU/Active & intelligent PAckaging materials and display cases as a tool for preventive conservation of Cultural Heritage./APACHE en
dc.identifier.eissn 2296-2646


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©2019 Saviello, Trabace, Alyami, Mirabile, Baglioni, Giorgi and Iacopino. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. Except where otherwise noted, this item's license is described as ©2019 Saviello, Trabace, Alyami, Mirabile, Baglioni, Giorgi and Iacopino. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
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