Deterioration of medieval painting in the chapel of the Holy Nail, Siena (Italy) partially treated with Paraloid B72

Milanesi, Claudio; Baldi, Franco; Borin, Sara; Brusetti, Lorenzo; Ciampolini, F.; Iacopini, Fabrizio; Cresti, Mauro

doi:10.1016/j.ibiod.2009.03.004

Cited by 29 publications

(13 citation statements)

References 31 publications

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“…Al 2 O 3 nanoparticles were used on silver specimens in order to improve the corrosion protection of an acrylic coating based on Paraloid B72. [61] The possibility of improving the characteristics of Paraloid B72 with nanoparticle suspension, attracted the attention of the researchers [62]. In the case of silver protection, the authors used nano-alumina (Al 2 O 3 ) pigmented acrylic resin suspension in order to protect the metal substrate from corrosion as well as preserve the aesthetic side of the artwork.…”

Section: Silver and Ironmentioning

confidence: 99%

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

et al. 2020

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In the last decades, the interest in the development of protective coatings for movable and immovable Cultural Heritage (CH) assets has decidedly increased. This has been mainly prompted by the raising consciousness on preservation requirements for cultural artefacts and monuments, which has consequently determined the development of new protective products. From acrylic resins used at the end of the last century to the up-to-date biomaterials and nanoparticles employed nowadays, the research has made a giant step forward. This article reviews the progresses, the technical challenges, and the most recent advances in protective coatings for archaeological metal, glass, and stone artefacts. It aims at offering a comprehensive and critical overview of the progressions in conservation science and displaying how research has optimized polymers in order to solve deterioration problems. Attention is given to recently developed materials, hybrid coatings, and corrosion inhibitors. This work seeks to provide a reference point for future research and to offer a wide-ranging introduction on the newly available material technologies to restorers and conservators.

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Section: Silver and Ironmentioning

confidence: 99%

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

et al. 2020

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“…An aliquot (100 µg) of homogenized freeze-dried sediment for each sample was prepared to determine diatom frustules, sediment structure and elemental composition of particles by scanning electron microscopy energy dispersive X-ray microanalysis (SEM/EDX). Specimens were glued to standard vacuum-clean stubs and coated with graphite (Edwards, carbon scancoat, S150A) (Milanesi et al, 2009). Three specimens of each sediment sample were observed by SEM (Philips XL20) with an instrument equipped with an EDX DX4 probe, which was used at 20 kV acceleration voltages to identify elements on the sediment surface by scanning different areas of each specimen.…”

Section: Scanning Electron Microscopy and X-ray Dispersive Microanalysesmentioning

confidence: 99%

Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica)

Baldi¹,

Facca²,

Marchetto³

et al. 2011

Marine Environmental Research

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. Diatom quantification and their distribution with salinity brines in coastal sediments of terra nova bay (antarctica). Marine Environmental Research, Elsevier, 2011, 71 (4) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Benthic diatoms represent an important element of global nutritional productivity; to 2 raise attention on their role, which is often neglected due to analytical difficulties, surface 3(1 cm top layer) coastal sediments from Gerlache inlet to Penguin Bay at Terra Nova Bay 4 were collected and stored at -20°C. DNA amplification by real-time-PCR, based on diatom-5 specific oligonucleotide primers designed on small-subunit rRNA (SSU rRNA), was 6 performed in addition to diatom conventional cell counting and spectrophotometric 7 determination of photo-pigments. Moreover, cations and anions were determined in 8 sediments with the aim to identify factors involved in the control of diatom abundance. 9Diatom distribution was found quite heterogeneous displaying significant differences from 10 site to site. The salinity in sediments ranged from 45.1 at Gerlache inlet to 76.2 at Penguin 11Bay and it was correlated with cell abundance, biodiversity, amount of pigments and 12 amplified DNA. The dominant species, Fragilariopsis curta, was associated to sediment 13 salinity brines. 14 15

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“…Contrasting the deterioration of paintings is a multidisciplinary field involving arts, humanities and science (Milanesi et al . ). Micro‐organisms have been shown to play a role in the deterioration of historic paintings, woods, paper and stone (Mitchell and McNamara ).…”

Section: Introductionmentioning

confidence: 97%

“…Many cultural objects are at risk of microbial deterioration as no material is immune to microbial attack (Sato et al 2014). Contrasting the deterioration of paintings is a multidisciplinary field involving arts, humanities and science (Milanesi et al 2009). Micro-organisms have been shown to play a role in the deterioration of historic paintings, woods, paper and stone (Mitchell and McNamara 2010).…”

Section: Introductionmentioning

confidence: 99%

Fungal bioprospecting and antifungal treatment on a deteriorated Brazilian contemporary painting

Boniek

Bonadio

Abreu

et al. 2018

Lett Appl Microbiol

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This study aims at identifying the populations of filamentous fungi present on a Brazilian contemporary painting, whose conservation status was compromised and showed evident signs of deterioration by microbial action. In addition, to correlate the biodeterioration potential of the isolated fungal strains, cellulolytic activity testing was performed and, finally, the biocide treatment against microbial growth was carried out. A total of nine isolates of filamentous fungi were detected and three distinct taxa were identified: Aspergillus flavus, Aspergillus niger and Penicillium citrinum. The detection of the enzymatic activity of the isolates by cellulolytic plate assay revealed the potential of filamentous fungal species in causing the deterioration of paintings. Our results showed that the presence of each strain of filamentous fungi correlated with the distribution of the paint colour, suggesting a tropism of certain species for specific dyes used. In addition, strains of A. niger showed a lower enzymatic activity index, despite the aesthetic damage that this fungal specie caused on the artwork. In conclusion, this study demonstrated that the identification of the microbiota obtained from the painting may help contrasting its biodeterioration and it described a successful antifungal treatment on a contemporary art piece. Contemporary art in Brazil arose from postmodernism, through the artistic manifestations included in the Neoconcrete Manifest of 1959, as well as with the use of innovative techniques. It was a consequence of the interaction between concept and language, displayed by the artists on a set of unconventional materials and objects. Despite being a 20th century painting, the concern of the artist to keep the art object in a good conservation state has driven the realization of this work and these microbial prospecting studies, associated with artwork deterioration, may contribute to the preservation of the Brazilian contemporary heritage.

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Deterioration of medieval painting in the chapel of the Holy Nail, Siena (Italy) partially treated with Paraloid B72

Cited by 29 publications

References 31 publications

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

Recent Advances in Protective Coatings for Cultural Heritage–An Overview

Diatom quantification and their distribution with salinity brines in coastal sediments of Terra Nova Bay (Antarctica)

Fungal bioprospecting and antifungal treatment on a deteriorated Brazilian contemporary painting

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