Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security
Abstract Up-converting nanoparticles can be a demand for requirements in many areas, including bioimaging and conversion of energy, but also in the battle against counterfeiting. The properties of lanthanide ions make falsification difficult or even impossible using appropriately designed systems. T...
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Format: | Article |
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Nature Portfolio
2022-11-01
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Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-022-23686-9 |
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author | D. Przybylska T. Grzyb A. Erdman K. Olejnik A. Szczeszak |
author_facet | D. Przybylska T. Grzyb A. Erdman K. Olejnik A. Szczeszak |
author_sort | D. Przybylska |
collection | DOAJ |
description | Abstract Up-converting nanoparticles can be a demand for requirements in many areas, including bioimaging and conversion of energy, but also in the battle against counterfeiting. The properties of lanthanide ions make falsification difficult or even impossible using appropriately designed systems. The proposition of such an approach is the NaErF4:Tm3+@NaYF4 core@shell up-converting nanoparticles combined with transparent varnishes. Given the spectroscopic properties of Er3+ ions present in the fluoride matrix, the obtained up-converting nanoparticles absorb light by 808 and 975 nm wavelengths. The intentionally co-doped Tm3+ ions enable tuning characteristic green Er3+ emission to red luminescence, particularly desirable in anti-counterfeiting applications. The article includes a thorough analysis of structural and morphological properties. Moreover, this work shows that exclusive luminescent properties of NaErF4:Tm3+@NaYF4 NPs can be given to the transparent varnish, providing an excellent anti-counterfeiting system, revealing red emission under two different excitation wavelengths. |
first_indexed | 2024-04-11T16:23:41Z |
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id | doaj.art-b5700f668f914852814a2f7499dde05b |
institution | Directory Open Access Journal |
issn | 2045-2322 |
language | English |
last_indexed | 2024-04-11T16:23:41Z |
publishDate | 2022-11-01 |
publisher | Nature Portfolio |
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series | Scientific Reports |
spelling | doaj.art-b5700f668f914852814a2f7499dde05b2022-12-22T04:14:16ZengNature PortfolioScientific Reports2045-23222022-11-0112111010.1038/s41598-022-23686-9Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper securityD. Przybylska0T. Grzyb1A. Erdman2K. Olejnik3A. Szczeszak4Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in PoznańDepartment of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in PoznańCentre of Papermaking and Printing, Łódź University of TechnologyCentre of Papermaking and Printing, Łódź University of TechnologyDepartment of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University in PoznańAbstract Up-converting nanoparticles can be a demand for requirements in many areas, including bioimaging and conversion of energy, but also in the battle against counterfeiting. The properties of lanthanide ions make falsification difficult or even impossible using appropriately designed systems. The proposition of such an approach is the NaErF4:Tm3+@NaYF4 core@shell up-converting nanoparticles combined with transparent varnishes. Given the spectroscopic properties of Er3+ ions present in the fluoride matrix, the obtained up-converting nanoparticles absorb light by 808 and 975 nm wavelengths. The intentionally co-doped Tm3+ ions enable tuning characteristic green Er3+ emission to red luminescence, particularly desirable in anti-counterfeiting applications. The article includes a thorough analysis of structural and morphological properties. Moreover, this work shows that exclusive luminescent properties of NaErF4:Tm3+@NaYF4 NPs can be given to the transparent varnish, providing an excellent anti-counterfeiting system, revealing red emission under two different excitation wavelengths.https://doi.org/10.1038/s41598-022-23686-9 |
spellingShingle | D. Przybylska T. Grzyb A. Erdman K. Olejnik A. Szczeszak Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security Scientific Reports |
title | Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security |
title_full | Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security |
title_fullStr | Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security |
title_full_unstemmed | Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security |
title_short | Anti-counterfeiting system based on luminescent varnish enriched by NIR- excited nanoparticles for paper security |
title_sort | anti counterfeiting system based on luminescent varnish enriched by nir excited nanoparticles for paper security |
url | https://doi.org/10.1038/s41598-022-23686-9 |
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