2010
DOI: 10.1366/000370210791211628
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Analytical Spectroscopic Investigation of Wavelength and Pulse Duration Effects on Laser-Induced Changes of Egg-Yolk-Based Tempera Paints

Abstract: The application of laser cleaning methodologies to light-sensitive substrates such as those encountered in artistic paintings is an extremely delicate issue. The cleaning of paintings and polychromes is an irreversibly invasive intervention; therefore, prior to the implementation of laser cleaning methodologies, a thorough characterization of the interaction between laser pulses and painting components is required. In this work, the modifications induced by irradiation with pulses of 150 picoseconds (at 1064 a… Show more

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Cited by 24 publications
(23 citation statements)
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“…The observation of beam-induced changes during the characterization of cultural heritage materials by intense radiation sources (synchrotron radiation, ion and laser beams) has revealed the necessity of studying radiation damage mechanisms and has encouraged the development of mitigation strategies [1]. Both issues are relevant for the analysis of paintings, given the known sensitivity of pigments and painting materials to irradiation by proton induced X-ray emission (PIXE) [2 and references therein], by synchrotron X-rays [3] or by lasers [4][5][6][7]. The assessment of damage of Prussian blue (Fe 4 [Fe(CN) 6 ] 3 ·xH 2 O) and zinc white (ZnO) pigments following irradiation by synchrotron X-rays [3,8], and of lead white pigments by protons in PIXE [2,9], exemplify a recent approach oriented towards the analysis of radiationinduced side effects in pictorial pigments, their recording for future studies, as well as the minimization of their impact.…”
Section: Introductionmentioning
confidence: 99%
“…The observation of beam-induced changes during the characterization of cultural heritage materials by intense radiation sources (synchrotron radiation, ion and laser beams) has revealed the necessity of studying radiation damage mechanisms and has encouraged the development of mitigation strategies [1]. Both issues are relevant for the analysis of paintings, given the known sensitivity of pigments and painting materials to irradiation by proton induced X-ray emission (PIXE) [2 and references therein], by synchrotron X-rays [3] or by lasers [4][5][6][7]. The assessment of damage of Prussian blue (Fe 4 [Fe(CN) 6 ] 3 ·xH 2 O) and zinc white (ZnO) pigments following irradiation by synchrotron X-rays [3,8], and of lead white pigments by protons in PIXE [2,9], exemplify a recent approach oriented towards the analysis of radiationinduced side effects in pictorial pigments, their recording for future studies, as well as the minimization of their impact.…”
Section: Introductionmentioning
confidence: 99%
“…The FT-Raman spectrum of goat milk on limestone substrate (Fig.4) shows bands assigned to tryptophan, to amide III of the proteins backbone, to in phase methylene twist and to ν(CC) aromatic ring chain vibrations. The bands observed in the region of 2750-3100 cm -1 are attributed to the ν(C-H) mode of the aliphatic compounds present in milk [17,18]. Bands of calcite are also observed in the FT-Raman spectrum of goat milk and are due to the limestone substrate.…”
Section: Resultsmentioning
confidence: 91%
“…Other non-destructive laser spectroscopies such as laser induced fluorescence (LIF) and Raman are widely used in the analysis of cultural heritage substrates. LIF is a sensitive technique, shown in several cases to be useful for identifying differences in organic and inorganic substrates on the basis of their characteristic molecular emission bands [12][13][14][15][16][17][18]. Svanberg et al [19] have used a portable LIF system to detect surface treatments and biodeterioration layers on the stone façades of historical buildings.…”
Section: Introductionmentioning
confidence: 99%
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“…When adding the pigments, changes are observed in the intensity and maximum position of the fluorescence of the gum arabic, due to the interactions between the binder and pigments. The fluorescence from rabbit skin glue can also be attributed to the products of photo-oxidation, combinations and modifications of amino acids from proteins found in collagen (tryptophan-free) [32][33][34][35] and it is also influenced by the pigment-binder interactions.…”
Section: Spectrofluorimetrymentioning
confidence: 99%