Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection
Paper-based artworks are prone to natural aging processes driven by chemical and biological processes. Numerous treatments have been developed to mitigate deterioration and prevent irreversible damage. In this study, we investigated the use of poly(acrylic acid)/TiO<sub>2</sub> composite...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/1/75 |
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| author | Sabina Botti Francesca Bonfigli Rosaria D’Amato Jasmine Rodesi Maria Gabriella Santonicola |
| author_facet | Sabina Botti Francesca Bonfigli Rosaria D’Amato Jasmine Rodesi Maria Gabriella Santonicola |
| author_sort | Sabina Botti |
| collection | DOAJ |
| description | Paper-based artworks are prone to natural aging processes driven by chemical and biological processes. Numerous treatments have been developed to mitigate deterioration and prevent irreversible damage. In this study, we investigated the use of poly(acrylic acid)/TiO<sub>2</sub> composite hydrogels, combining their cleaning and protective functions in a minimally invasive treatment. Hydrogels allow for controlled water flow and photocatalytic TiO<sub>2</sub> nanoparticles enhance the hydrogel’s efficacy by enabling the removal of oxidation products and inactivating biological contaminants. Furthermore, this innovative material can act as a protective coating against UV-induced aging, preserving both color and stability of the paper. Raman spectroscopy and confocal laser scanning microscopy imaging techniques were employed to evaluate the treatments, allowing for us to differentiate between hydrolytic and oxidative aging processes. Our findings demonstrate that papers coated with poly(acrylic acid)/TiO<sub>2</sub> composite hydrogels exhibit significant reductions in oxidative markers, an enhanced color stability, and an overall improved resistance to degradation compared to uncoated samples. |
| format | Article |
| id | doaj-art-9565d66d07004fcd8cc5d0c11ac64bd7 |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-9565d66d07004fcd8cc5d0c11ac64bd72025-01-10T13:18:48ZengMDPI AGMolecules1420-30492024-12-013017510.3390/molecules30010075Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and ProtectionSabina Botti0Francesca Bonfigli1Rosaria D’Amato2Jasmine Rodesi3Maria Gabriella Santonicola4ENEA C.R. Frascati, Photonics Micro- and Nano-Structures Laboratory, Physical Technologies and Security Division, Nuclear Department, Via E. Fermi 45, 00044 Frascati, ItalyENEA C.R. Frascati, Photonics Micro- and Nano-Structures Laboratory, Physical Technologies and Security Division, Nuclear Department, Via E. Fermi 45, 00044 Frascati, ItalyENEA C.R. Frascati, Photonics Micro- and Nano-Structures Laboratory, Physical Technologies and Security Division, Nuclear Department, Via E. Fermi 45, 00044 Frascati, ItalyDepartment of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, ItalyDepartment of Chemical Engineering Materials Environment, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, ItalyPaper-based artworks are prone to natural aging processes driven by chemical and biological processes. Numerous treatments have been developed to mitigate deterioration and prevent irreversible damage. In this study, we investigated the use of poly(acrylic acid)/TiO<sub>2</sub> composite hydrogels, combining their cleaning and protective functions in a minimally invasive treatment. Hydrogels allow for controlled water flow and photocatalytic TiO<sub>2</sub> nanoparticles enhance the hydrogel’s efficacy by enabling the removal of oxidation products and inactivating biological contaminants. Furthermore, this innovative material can act as a protective coating against UV-induced aging, preserving both color and stability of the paper. Raman spectroscopy and confocal laser scanning microscopy imaging techniques were employed to evaluate the treatments, allowing for us to differentiate between hydrolytic and oxidative aging processes. Our findings demonstrate that papers coated with poly(acrylic acid)/TiO<sub>2</sub> composite hydrogels exhibit significant reductions in oxidative markers, an enhanced color stability, and an overall improved resistance to degradation compared to uncoated samples.https://www.mdpi.com/1420-3049/30/1/75Raman spectroscopycultural heritagepaper aging diagnosticsRaman spectral imaginghydrogel paper cleaning |
| spellingShingle | Sabina Botti Francesca Bonfigli Rosaria D’Amato Jasmine Rodesi Maria Gabriella Santonicola Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection Molecules Raman spectroscopy cultural heritage paper aging diagnostics Raman spectral imaging hydrogel paper cleaning |
| title | Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection |
| title_full | Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection |
| title_fullStr | Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection |
| title_full_unstemmed | Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection |
| title_short | Poly(Acrylic Acid)/TiO<sub>2</sub> Nanocomposite Hydrogels for Paper Artwork Cleaning and Protection |
| title_sort | poly acrylic acid tio sub 2 sub nanocomposite hydrogels for paper artwork cleaning and protection |
| topic | Raman spectroscopy cultural heritage paper aging diagnostics Raman spectral imaging hydrogel paper cleaning |
| url | https://www.mdpi.com/1420-3049/30/1/75 |
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