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RESEARCH PRODUCT
Ag nanoparticles agargel nanocomposites for SERS detection of cultural heritage interest pigments
Franco Mario GelardiMarco CannasC. MiccicheFrancesco AmatoM. Li VigniSimonpietro AgnelloBruno Pignatarosubject
Materials scienceNanocompositeExtraction (chemistry)General Physics and Astronomy02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyAlizarin01 natural sciencessers cultural heritage raman spectroscopySilver nanoparticle0104 chemical scienceschemistry.chemical_compoundsymbols.namesakechemistrySurface Enhanced Raman Spectroscopy Cultural Heritage pigmentssymbolsAgarosesense organsCrystal violet0210 nano-technologyRaman spectroscopySpectroscopyNuclear chemistrydescription
Agarose gel (agargel) composites with commercial and laboratory made silver nanoparticles were prepared by a wet solution method at room temperature. The gel composites were used for pigment extraction and detection by Raman spectroscopy. Red (alizarin) and violet (crystal violet) pigments deposited on paper were extracted by the composites and were investigated by micro-Raman spectroscopy. Evaluation was carried out of the surface-enhanced Raman spectroscopy (SERS) effect induced by the silver nanoparticles embedded in the gel. A kinetic approach as a function of time was used to determine the efficiency of pigments extraction by composites deposition. A non-invasive extraction process of few minutes is demonstrated. This process induces active SERS for both used pigments. The reported results show the full exploitability of agargel silver nanoparticle composites for the extraction of pigments from paper based artworks.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-02-01 | The European Physical Journal Plus |