Anti-counterfeiting SERS security labels derived from silver nanoparticles and aryl diazonium salts.
Journal
Nanoscale advances
ISSN: 2516-0230
Titre abrégé: Nanoscale Adv
Pays: England
ID NLM: 101738708
Informations de publication
Date de publication:
22 Nov 2022
22 Nov 2022
Historique:
received:
26
08
2022
accepted:
12
10
2022
entrez:
12
12
2022
pubmed:
13
12
2022
medline:
13
12
2022
Statut:
epublish
Résumé
The development of anti-counterfeiting inks based on surface-enhanced Raman scattering (SERS) labels have attracted great interest in recent years for their use as security labels in anti-counterfeiting applications. Indeed, they are promising alternatives to luminescent inks, which suffer from several limitations including emission peak overlap, toxicity and photobleaching. Most of the reported SERS security labels developed so far rely on the use of thiolate self-assembled monolayers (SAMs) for the immobilization of Raman reporters on metallic nanoparticle surface. However, SAMs are prone to spontaneous desorption and degradation under laser irradiation, thereby compromising the ink long-term stability. To overcome this issue, we develop herein a new generation of SERS security labels based on silver nanoparticles (Ag NPs) functionalized by aryl diazonium salts, carrying various substituents (-NO
Identifiants
pubmed: 36504752
doi: 10.1039/d2na00572g
pii: d2na00572g
pmc: PMC9680943
doi:
Types de publication
Journal Article
Langues
eng
Pagination
5037-5043Informations de copyright
This journal is © The Royal Society of Chemistry.
Déclaration de conflit d'intérêts
The authors declare no competing financial interests.
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