Nanoscience and Cultural Heritage 2016
DOI: 10.2991/978-94-6239-198-7_10
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Confined Aqueous Media for the Cleaning of Cultural Heritage: Innovative Gels and Amphiphile-Based Nanofluids

Abstract: This chapter presents the applicative potentialities of gels for the cleaning of artworks surfaces. In particular, innovative physical and chemical gels, with high water retention capability, high responsiveness to external stimuli, and suitable mechanical properties, are described. The high solvent retention capability and the specific mechanical properties of these gels allow the safe cleaning of artifacts, even including water-sensitive substrates. In fact, the cleaning action is limited to the contact surf… Show more

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Cited by 15 publications
(20 citation statements)
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“…In the last decades, NSFs have proved to be highly efficient in the swelling and removal of hydrophobic coatings [8][9][10][11][12][13][14][15][16], as they work through a removal mechanism that, for high molecular weight substances such as polymers, is based on dewetting and detachment, thus allowing a more controlled surface cleaning with respect to traditional solvent chemistry [17][18][19][20][21]. As mentioned, the use of aqueous fluids on modern oil paints requires special attention, and an optimal strategy is thus to confine cleaning fluids in retentive gel matrices, minimizing the risks to the artifacts [22][23][24][25][26][27][28][29][30].…”
Section: Introductionmentioning
confidence: 99%
“…In the last decades, NSFs have proved to be highly efficient in the swelling and removal of hydrophobic coatings [8][9][10][11][12][13][14][15][16], as they work through a removal mechanism that, for high molecular weight substances such as polymers, is based on dewetting and detachment, thus allowing a more controlled surface cleaning with respect to traditional solvent chemistry [17][18][19][20][21]. As mentioned, the use of aqueous fluids on modern oil paints requires special attention, and an optimal strategy is thus to confine cleaning fluids in retentive gel matrices, minimizing the risks to the artifacts [22][23][24][25][26][27][28][29][30].…”
Section: Introductionmentioning
confidence: 99%
“…In the last decades, NSFs have proved to be highly efficient in the swelling and removal of hydrophobic coatings [8][9][10][11][12][13][14][15][16], as they work through a removal mechanism that, for high molecular weight substances, such as polymers, is based on dewetting and detachment, thus allowing a more controlled surface cleaning with respect to traditional solvent chemistry [17][18][19][20][21]. As mentioned, the use of aqueous fluids on modern oil paints requires special attention, and an optimal strategy is thus to confine cleaning fluids in retentive gel matrices, minimizing the risks to the artifacts [22][23][24][25][26][27][28][29][30]. The physicochemical characterization of the combined gel-NSF cleaning system included the interaction of the NSF with the gel and its diffusion inside the gel network, which were investigated using Confocal Laser Scanning Microscopy (CLSM) and Fluorescence Correlation Spectroscopy (FCS).…”
Section: Introductionmentioning
confidence: 99%
“…Research in the field of colloid and materials science has proved to be a fundamental framework to develop solutions for the cleaning of works of art [6][7][8][9][10]. We decided to tackle the complex issue of PSTs removal by designing two new methods based respectively on the use of: 1. a hydrogel as a scaffold to confine an oil-in-water (o/w) nanostructured fluid [7]; 2. a polymeric organogel to confine diethyl carbonate (DEC) [8]. The two methods are complementary in that they use cleaning fluids with different properties, so as to allow a wide range of cleaning applications.…”
Section: Introductionmentioning
confidence: 99%