From Nanoparticles to Gels: A Breakthrough in Art Conservation Science

Langmuir, Год журнала: 2023, Номер 39(31), С. 10744 - 10755

Опубликована: Июль 24, 2023

Cultural heritage is a crucial resource to increase our society's resilience. However, degradation processes, enhanced by environmental and anthropic risks, inevitably affect works of art, hindering their accessibility socioeconomic value. In response, interfacial colloidal chemistry has proposed valuable solutions over the past decades, overcoming limitations traditional restoration materials granting cost- time-effective remedial conservation endangered artifacts. Ranging from inorganic nanoparticles hybrid composites soft condensed matter (gels, microemulsions), wide palette systems been made available conservators worldwide, targeting consolidation, cleaning, protection art. The effectiveness versatility allow safe effective treatment masterpieces belonging different cultural artistic productions, spanning classic ages Renaissance modern/contemporary Despite these advancements, formulation for preservation still an open, exciting field, where recent requirements include coping with imperatives Green Deal foster production sustainable, low-toxicity, environmentally friendly systems. This review gives critical overview starting pioneering up latest advancements in art conservation, challenging topic can be transversal multiple sectors even beyond preservation, pharmaceutical food industry, cosmetics, tissue engineering, detergency.

Язык: Английский

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New sustainable polymers and oligomers for Cultural Heritage conservation

Chemical Science, Год журнала: 2024, Номер 15(7), С. 2443 - 2455

Опубликована: Янв. 1, 2024

We highlight here current trends of “green” materials for Cultural Heritage, and we introduce a new methodology to determine macromolecule's log P , applying it the development smart organogels Heritage conservation.

Язык: Английский

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An overview of gel-based cleaning approaches for art conservation

Heritage Science, Год журнала: 2024, Номер 12(1)

Опубликована: Июль 22, 2024

Abstract This article presents a thorough overview of gel-based cleaning methods used in art conservation. It covers the evolution traditional approaches and development advanced gel systems. The paper examines structure, characterization, classification gels, as well their mechanical properties, which are crucial Various types including hydrogels, organogels, xerogels, semi-IPNs, microgels, discussed detail, highlighting unique properties suitability for specific conservation applications. advantages, limitations, applications both natural synthesized polymers that form basis these gels also analyzed. Case studies presented to demonstrate practicality effectiveness different materials such paper, paintings, metals, textiles. These case showcase successful removal stains, pollutants, unwanted layers while preserving integrity aesthetic value artworks. By contributing existing knowledge on conservation, this comprehensive review establishes foundation future research field. concludes with discussion challenges potential directions optimization Overall, is valuable resource researchers, conservators, students field providing essential information insights into use effective safe agents.

Язык: Английский

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Prediction of Green Solvent Applicability in Cultural Heritage Using Hansen Solubility Parameters, Cremonesi Method and Integrated Toxicity Index

Sustainability, Год журнала: 2025, Номер 17(7), С. 2944 - 2944

Опубликована: Март 26, 2025

The transition toward sustainable conservation practices requires a scientifically ground approach to substituting traditional solvent systems with green alternatives. This study aims facilitate the adoption of solvents by restoration professionals systematically evaluating their chemical compatibility and toxicological safety. By integrating Hansen solubility parameters (HSP), Relative Energy Difference (RED), Integrated Toxicity Index (ITI), we identified high potential for replacing Cremonesi mixtures. analysis revealed that ether-based solvents, such as 2,5-dimethyltetrahydrofuran cyclopentyl methyl ether, exhibit affinity mixtures, while esters fatty acid (FAMEs) offer balanced combination low toxicity. However, also underscores significant gaps in safety data (SDS) many innovative highlighting need further evaluation before widespread implementation.

Язык: Английский

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New horizons on advanced nanoscale materials for Cultural Heritage conservation

Nanoscale Horizons, Год журнала: 2024, Номер 9(4), С. 566 - 579

Опубликована: Янв. 1, 2024

Hydrogels based on sustainable polymers and tailored for specific applications in Cultural Heritage conservation are presented. The system cleaning ability increases with the network tortuosity (water-soluble components) gel surface roughness (soil/particulate matter).

Язык: Английский

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Conservation and Protection Treatments for Cultural Heritage: Bibliometric Analysis, Novel Insights and Future Trends

Опубликована: Июнь 4, 2024

Cultural heritage is a fundamental part of the society’s identity, and its conservation great relevance as it transcends time memory. To minimize deterioration, cultural has traditionally undergone diverse preservation maintenance treatments attention researchers to develop new innovative methods for state diagnosis protection been increasing in recent decades. Therefore, this study, literature review using bibliometric analysis LDA methodology was conducted systematically map scientific research outputs on protection. Data retrieved from Scopus database annual publications, countries, most-cited authors, institutions, keywords have comprehensively analyzed, leading detection trends. Findings show an number studies field last decades, particularly since 2010. Italy, home largest UNESCO sites, most prolific country. Most are related metal, paper stone substrate be protected. Significant progress made understanding deterioration processes through precise development In sense, latest trends detected such use non-invasive techniques nanotechnology nature-based treatments.

Язык: Английский

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Design and Development of Sustainable Polyurethane Foam: A Proof‐of‐Concept as Customizable Packaging for Cultural Heritage Applications

Advanced Engineering Materials, Год журнала: 2024, Номер 26(7)

Опубликована: Фев. 15, 2024

World cultural heritage is an invaluable resource and must be preserved. Conventional packaging materials, such as polystyrene, polyurethane (PU) foams, paper‐like tissue, nylon fabric, are petrol‐based. According to Agenda 2030, Green Deal directives, the development of alternative bio‐based materials has gained significant scientific technological relevance. In this scenario, a new sustainable material for safe storage transporting artifacts, based on PU foam filled with 6 wt% Zeolite 4A, proposed. 4A dispersion into matrix imparts higher compression strength energy absorption capability respect unloaded (7‐fold increase), owing its remarkable cell nucleating effect. The proposed can adsorb water vapor, up 29 wt%, thus contributing regulating humidity around artifact. A advantage developed possibility use it plaster precisely casting article protect, resulting in strongly improved handling, protection, transportation safety conventional solutions. proof‐of‐concept workflow proposed, consisting of: 1) three‐dimensional (3D) scanning original artifact; 2) replication through 3D printing; 3) replica prepare tailored cast artifact shape.

Язык: Английский

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“Twin Chain” PVA Cryogels with Controlled Tortuosity as Advanced Materials for Cleaning of Works of Art

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Апрель 12, 2024

Abstract Soft matrices with tuned properties are part of the vast landscape innovative materials for restoration works art. “Twin chain” polymer networks (TC‐PNs) based on polyvinyl alcohol have proven unique as scaffolds Cultural Heritage cleaning. They enable optimum adaptability, adhesion, porosity, and connectivity at both micro‐ nano‐scale resulting in superior time/space‐controlled cleaning operations. In this work, TC‐PNs through a mild crosslinking poly(vinyl alcohol) (PVA)‐porogen by using sebacic, adipic, or succinic acid. The modified porogens different structural features imparting phase behavior to TC‐PVAs mixtures aqueous solution, i.e., pre‐gel systems used form gels liquid–liquid separation. macro‐, micro‐, nanoscale final characterized Confocal Laser Scanning Microscopy, Small Angle X‐ray Scattering, Rheology related their performances. study shows that capacity is tortuosity, can be tailored nanoscale. Counterintuitively higher tortuosity show better performances evidenced mockups paintings from Jean Helion, Jackson Pollock, Tancredi Parmeggiani Peggy Guggenheim Collection Venice.

Язык: Английский

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Tailoring the properties of castor oil polyurethanes organogels with green oligoesters

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 698, С. 134528 - 134528

Опубликована: Июнь 12, 2024

Castor oil (CO) can react with isocyanate to form polyurethane organogels, whose hydrophobicity be regulated by functionalization "green" oligoesters of bio-dicarboxylic acids. Here, we elucidated the gelation mechanism induced gain control gels' mechanical properties and solvent confinement capacity. This useful in cleaning Cultural Heritage items, a socioeconomically important application, other scientific/technological sectors. During gelation, aggregates compatibility CO is oligoesters' hydrophobicity. allows fine time micro- nanostructure structure, where presence solid-like regions regulates rheological behaviour resistance. The upload capacity also depends on hydrophobicity, which favour chain relaxation over Fickian diffusion during swelling. Finally, swollen organogels were used remove organic varnishes/coatings from painted wood glass, demonstrating potential as sustainable tools for works art.

Язык: Английский

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Pickering Emulsion Gel Based on Funori Biopolymer and Halloysite Nanotubes: A New Sustainable Material for the Cleaning of Artwork Surfaces

ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(13), С. 7679 - 7690

Опубликована: Июнь 29, 2024

Within the cultural heritage field, colloidal systems based on ecofriendly products represent alternatives to toxic solvents as cleaners for surface artworks. In this paper, we developed an innovative protocol prepare a Pickering emulsion gel Funori biopolymer, halloysite clay nanotubes (HNTs), and isooctane confined oil phase. The filling of droplets within network might reduce amounts hydrocarbons necessary cleaning applications. Moreover, specific interactions between biopolymer stabilized could increase stability emulsions favor removal efficiency toward hydrophobic contaminants. First, optimized preparation in aqueous media by addition variable Ba2+ ions cross-linkers. To purpose, studied cross-linking process investigation rheological properties gelation kinetics. Then, prepared hybrid HNTs achieve sustainable materials with microdomains that are useful We investigated properties, which were strictly correlated Funori/halloysite interactions. peculiar effects assessed studying energetics detaching at isooctane/water interface. Remarkably, presence enhanced interfacial activity and, consequently, emulsion. Finally, explored Regalrez 1126, is contaminant can be found both contact angle measurements optical investigations revealed complete 1126 from after 2 min application. Further tests real artwork (an canvas coming private collection) confirmed suitability Funori/HNTs/isooctane restoration purposes.

Язык: Английский

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