Innovative and Integrated Strategies: Case Studies

Palla, Franco; Barresi, Giovanna; Chisesi, Rosa Maria; Cammarata, Matteo; Carlo, Enza Di; Drago, Sandro; Giordano, Ambra; Lombardo, Giovanna; Rotolo, Valentina; Schiavone, Salvatore; Stampone, Giuseppe; Trapani, Maria Rosa

doi:10.1007/978-3-319-46168-7_5

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…In an innovative study, the detachment of a canvas layer, glued by the acrylic Paraloid B72 resin to a mosaic sample, is reported by using a gelled enzymatic solution at 3% Klugel G, with esterase activity, at room temperature, for 40 min (Palla et al 2017;Palla and Barresi, 2017). In more recent studies, the Authors reported the removal of adhesive-tape glue residues, present on an acrylic canvas painting, adopting a surfactant containing an esterase (derived by a marine organism and normally used in the cosmetic field) activated at 30°C (microemulsion of Velvesil Plus®) (Barresi et al 2015;Giordano et al 2018;Palla et al 2019).…”

Section: Accepted Articlementioning

confidence: 99%

Biocleaning on Cultural Heritage: new frontiers of microbial biotechnologies

Ranalli

Zanardini

2021

J Appl Microbiol

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Over the last two decades, the biotechnologies applied to Cultural heritage (CH) have become a successful novel alternative to the traditional approaches in the CH conservation and preservation. From these new perspectives, microorganisms and their metabolisms can be used for the safeguarding of artworks. Biocleaning is a field with a growing interest, based on eco-friendly processes and safe procedures, where biological reactions occurring in natural habitats are optimized in artificial conditions with the aim of CH conservation. This represents a new tool and opportunity for the development and improvement of the sector, with a great advantage for the CH conservationrestoration, in terms of safety, effectiveness, costs and environmental sustainability. This review focuses on the use of microbes and enzymes involved in biocleaning of CH artworks. The aim is to provide a comprehensive, critical and chronological view of the scientific works published until now where 'virtuous' microorganisms are applied on different CH materials, pointing out strength and drawback of the biocleaning treatments.

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Section: Accepted Articlementioning

confidence: 99%

Biocleaning on Cultural Heritage: new frontiers of microbial biotechnologies

Ranalli

Zanardini

2021

J Appl Microbiol

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Back to the past—forever young: cutting-edge biochemical and microbiological tools for cultural heritage conservation

Mazzoli

Giuffrida²,

Pessione

2018

Appl Microbiol Biotechnol

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Ancient documents and milestones of human history such as manuscripts and textiles are fragile and during aging undergo chemical, physical, and biological deterioration. Among the different causes of damage, also human intervention plays a role since some restoration strategies proved to be transient and/or they generated further damage. Outdoor monuments undergo deterioration since they are exposed to pollution, weathering, microbial attack (giving rise to undesired pigmentation, discoloration or true dissolution, corrosion, and overall decay), as well as man-made damage (i.e., graffiti). This review article reports the best-fitting strategies used to restore wall paintings, outdoor monuments, textiles, and paper documents to their ancient beauty by employing "soft" biobased approaches such as viable bacteria or suitable enzymes.

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New tool for sustainable treatments: agar spray—research and practice

2022

Self Cite

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In the last decades, the research in the field of cultural heritage has shifted its attention to the development of green methods, focusing on the use of renewable and biodegradable materials. Within this scenario, Agar has been one of the most innovative materials available to the conservator. However, sometimes its physical characteristics such as rigidity and gelation temperature are not always an advantage in the treatment of artwork. The atomization of hydrocolloid, a procedure presented in 2019 under the name of Agar spray, has enhanced the performance of this extraordinary material. This work aims to explore the new physical and mechanical characteristics imparted to the gel by the new spray procedure, compared to agar gel that forms under normal environmental conditions. Mechanical resistance and film transparency of both soft materials have been characterized, and the speed of water release has been detected on porous material, lateral solvent flow evaluated for confined cleaning. The new residues, potentially left by the gel after the spray application, were analyzed comparing them with the residues of the gel, which gels at room temperature. The dry Agar films were studied in terms of hydrophobicity of the dry film, agar towards water and water vapor permeability. The data that emerged from the study confirm the new features imparted to the gel by the new procedure, suggesting new measures to be taken to optimize its application.

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Innovative and Integrated Strategies: Case Studies

Cited by 3 publications

References 11 publications

Biocleaning on Cultural Heritage: new frontiers of microbial biotechnologies

Biocleaning on Cultural Heritage: new frontiers of microbial biotechnologies

Back to the past—forever young: cutting-edge biochemical and microbiological tools for cultural heritage conservation

New tool for sustainable treatments: agar spray—research and practice

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