Spectroscopic identification of alizarin in a mixture of organic red dyes by incorporation in Zr‐Ormosil

Murcia‐Mascarós, Sonia; Domingo, Concepción; Sánchez-Cortés, Santiago; Cañamares, María Vega; Garcı́a-Ramos, José Vicente

doi:10.1002/jrs.1315

Cited by 43 publications

(41 citation statements)

References 21 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…5a). The SERS peaks of alizarin are in excellent agreement with previous reports and theoretical calculations [26]. Selected SERS peaks of alizarin are listed in Table 1 together with peak assignments to molecular vibrations.…”

Section: Results and Discussion Raman And Sers Spectra Of Dyes On Papersupporting

confidence: 75%

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Chen

Leona

Vo-Dinh³

et al. 2005

SPIE Proceedings

View full text Add to dashboard Cite

Surface-enhanced Raman scattering (SERS) was investigated for applications in the analysis of anthraquinone dyes used in works of art. Two SERS procedures were developed and evaluated with frequently used anthraquinone dyes, alizarin, carminic acid and lac dye. The first procedure involves the removal of a microscopic fragment containing alizarin from a painting, and a layer of silver nanoparticles was thermally evaporated directly on the fragment to induce SERS signal from alizarin. The applicability of this procedure for analyzing solid samples of color layer from paintings was discussed in detail. In the second procedure, a SERS-active substrate was prepared by spin-coating an alumina-nanoparticle layer onto a glass slide, followed by thermally evaporating a layer of silver nanoparticles on top of the alumina layer. Aliquots of dye solutions were delivered onto this substrate where intense SERS spectra characteristic of alizarin, carminic acid, and lac dye were obtained. The effects of two parameters, the concentration of the alumina suspension, and the thickness of the silver nanoparticle layer, on the performance of the Ag-Al 2 O 3 substrate were examined with alizarin as the model compound. Comparative studies with other common SERS substrates showed larger enhancement and improved reproducibility for the Ag-Al 2 O 3 substrate. The potential applicability of the Ag-Al 2 O 3 substrate for the analysis of real artifact objects was illustrated by the identification of alizarin extracted from a small piece of textile dyed with traditional methods and materials. The limit of detection for alizarin was estimated to be 7x10 -15 g from tests using solutions of known concentration.

show abstract

Section: Results and Discussion Raman And Sers Spectra Of Dyes On Papersupporting

confidence: 75%

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Chen

Leona

Vo-Dinh³

et al. 2005

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…[31] The spectral modifications observed for the lake are most likely related to the interaction of the dye with the inorganic mordant. This hypothesis is sustained by SERS data of alizarin, [32] in which the enhanced Raman spectrum of the complexed dye on the metal nanoparticle surface is similar to that reported in the present work for madder lake.…”

Section: Resultsmentioning

confidence: 99%

“…c Refs. [11,31,32]. modification observed passing from the anthraquinone dyes, alizarin and purpurin, to madder lake, the lac lake Raman features show an intense band at 1310 cm −1 that could be assigned to CC stretching modes of the Al-dye complex.…”

Section: Resultsmentioning

confidence: 99%

Subtracted shifted Raman spectroscopy of organic dyes and lakes

Rosi

Paolantoni

Clementi

et al. 2009

J Raman Spectroscopy

View full text Add to dashboard Cite

Resonance Raman spectroscopy has been utilized to identify vegetal and animal dyes and lakes. These compounds have been used by artists since antiquity, and their identification has important implications in art history and conservation. The resonance condition is useful when working with real ancient objects so as to enhance the Raman scattering of chromophores with respect to the strong signal of the matrix, such as the textile or parchment over which the colorant is supported. The strong fluorescence that generally characterizes the resonance Raman spectra was eliminated by using subtracted shifted Raman spectroscopy (SSRS). A systematic study on reference organic dyes was primarily carried out to evaluate the suitability of the method and to estimate the strengths and limitations of the spectrum reconstruction process. The method was then applied to the noninvasive identification of madder on ancient dyed silk textiles such as an altar table cloth and a manutergium attributed to the Egyptian artistic textile production of the 10th-11th Century A.D.

show abstract

“…The SERS peaks of alizarin are in excellent agreement with previous reports and theoretical calculations. 25 Although the SERS features are not as well defined for carminic acid or lac dye, this is the first report of the SERS spectrum for either dye to the best of our knowledge. Further optimization study is underway to improve the quality of their spectra and elucidate the origin of these SERS bands.…”

Section: Raman and Sers Spectra Of Dyes On Papermentioning

confidence: 99%

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Chen

Leona

Vo-Dinh³

et al. 2006

J. Raman Spectrosc.

117

View full text Add to dashboard Cite

Surface-enhanced Raman scattering (SERS) was investigated for applications in the analysis of anthraquinone dyes used in works of art. Two SERS procedures were developed and evaluated with three frequently used anthraquinone dyes, alizarin, carminic acid and lac dye. The first procedure involves coating a layer of silver nanoparticles directly on pieces of filter paper stained with the dyes of interest by thermal evaporation to induce SERS effect. In the second procedure, a SERS-active Ag-Al 2 O 3 substrate was prepared by spin-coating an alumina-nanoparticle layer onto a glass slide to provide the nanostructure of the substrate, followed by thermally evaporating a layer of silver nanoparticles on top of the alumina layer. Aliquots of dye solutions were delivered onto this substrate to be analyzed. Intense SERS spectra characteristic of alizarin, carminic acid and lac dye were obtained using both SERS procedures. The effects of two parameters, the concentration of the alumina suspension and the thickness of the silver nanoparticle layer on the performance of the Ag-Al 2 O 3 substrate were examined with alizarin as the model compound. Comparative studies were conducted between the Ag-Al 2 O 3 substrate and the SERS substrate prepared using Tollens reaction. The Ag-Al 2 O 3 substrate was shown to offer larger enhancement and improved reproducibility than the Tollens substrates. Finally, the potential applicability of the Ag-Al 2 O 3 substrate for the analysis of real artifact objects was illustrated by the identification of alizarin extracted from a small piece of textile dyed using traditional methods and materials. The limit of detection for alizarin was estimated to be 7 × 10 −15 g from tests performed on solutions of known concentration.

show abstract

Spectroscopic identification of alizarin in a mixture of organic red dyes by incorporation in Zr‐Ormosil

Cited by 43 publications

References 21 publications

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Subtracted shifted Raman spectroscopy of organic dyes and lakes

Application of surface-enhanced Raman scattering (SERS) for the identification of anthraquinone dyes used in works of art

Contact Info

Product

Resources

About