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Keywords = chromogenic motion picture films

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10 pages, 1677 KiB  
Article
Surface-Enhanced Raman Spectroscopy for the Investigation of Chromogenic Motion Picture Films: A Preliminary Study
by Margherita Longoni, Francesco Ferretti, Sofia Zucca, Letizia Caielli and Silvia Bruni
Chemosensors 2022, 10(3), 101; https://doi.org/10.3390/chemosensors10030101 - 6 Mar 2022
Cited by 3 | Viewed by 3384
Abstract
In the present work, surface-enhanced Raman spectroscopy (SERS) is proposed for the identification of dyes in chromogenic films. These substances, which are generated within the film itself during the colour development process, are first studied on reference molecules synthesised for the purpose and, [...] Read more.
In the present work, surface-enhanced Raman spectroscopy (SERS) is proposed for the identification of dyes in chromogenic films. These substances, which are generated within the film itself during the colour development process, are first studied on reference molecules synthesised for the purpose and, subsequently, on dyes extracted from a chromogenic film. SERS spectroscopy proved to be an efficient technique for their investigation, providing a proof of concept for its applicability for further studies on this complex topic. SERS spectra of the reference molecules were also compared with normal Raman spectra, acquired with a spectrometer based on SSE™ technology. Furthermore, the excellent SERS properties of anisotropic nanomaterials, such as silver nanostars, have been confirmed. Full article
(This article belongs to the Special Issue SERS: Analytical and Biological Challenges)
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