Anti-counterfeiting SERS security labels derived from silver nanoparticles and aryl diazonium salts.

ABSTRACT: 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 ba

SUBMITTER: Li D 

PROVIDER: S-EPMC9680943 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature