| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Theodorakopoulos, Charis
Northumbria University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2024A study on the laser-induced phenomena of commercial dammar, ketone-based and poly(isobutyl methacrylate) resin artists’ varnishes upon Er:YAG laser irradiation
- 2020An analytical evaluation of Er:YAG laser cleaning tests on a nineteenth century varnished paintingcitations
- 2016A Preliminary Investigation Into the Use of Diethylenetriaminepentaacetic Acid (DTPA), and Ethylenediaminetetraacetic Acid (EDTA) to Treat Foxing of Paper Objects.
- 2013Cleaning of water-gilded surfaces using hydro- and solvent-gels
- 2007Removal of simulated dust from acrylic paints by laser irradiation at IR, Vis and UV wavelengths
Places of action
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conferencepaper
A Preliminary Investigation Into the Use of Diethylenetriaminepentaacetic Acid (DTPA), and Ethylenediaminetetraacetic Acid (EDTA) to Treat Foxing of Paper Objects.
Abstract
Foxing is a general term used to describe a type of localized, brown staining that may be caused by a range of deterioration agents active in paper objects. This research focuses on foxing caused by iron ions, a powerful catalyst for oxidative cellulose degradation that is highly destructive to paper objects. Iron-induced foxing may become a serious issue during a disaster situation when increased moisture levels are encountered. Such environmental conditions may accelerate oxidation reactions within paper objects, resulting in a decrease in the structural integrity of cellulose and increased staining of an object. The severity of iron catalyzed oxidation of cellulose and the ensuing aesthetic disruption are aspects of deterioration that should be addressed with conservation treatment. Chelating agents have been used to treat cellulose degradation caused by iron ions. In this work, a preliminary assessment of the effectiveness and practicality of chelating agents for interventive treatment of works of art on paper was conducted. Past uses of chelating agents in paper conservation were reviewed. Synthesized iron foxed samples were tested with diethylenetriaminepentaacetic acid (DTPA), ethylenediaminetetraacetic acid (EDTA), and each chelate in combination with sodium dithionite reducing agent. The samples were analyzed under visible light ultraviolet fluorescence (280-440 nm), and optical microscopy using a Leica s6D microscope and an Olympus DP70 digital microscope with an Olympus U-RFL-T burner. A Spectro X-Lab 2000 x-ray fluorescence was used to measure iron ion levels before treatment, after treatment with chelators and sodium dithionite, and after washing in deionized water. Selected samples were further examined after testing was completed using an FEI Quanta 200 scanning electron microscope (SEM) with an Oxford Instruments INCA X-sight LN2 energy dispersive x-ray spectroscopy (EDS) and Si(Li) X-ray detector, 10mm ATW2 with a special energy resolution of 5.9 keV:133eV to investigate the physical properties ...