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Suitability and Sustainability of Anti-Graffiti Treatments on Natural Stone Materials. SUSTAINABILITY 2022. [DOI: 10.3390/su14010575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Graffiti vandalism represents an aesthetic and structural phenomenon of degradation both for buildings and cultural heritage: the most used sprays and markers can permeate the stone materials exposing them to degradation. Hence, great attention is being currently devoted to new non-invasive chemical approaches to face this urgent problem. This work is aimed at deeply examining the effects of some of the most sustainable chemical protective methods on the physical properties of natural building materials (e.g., tuff and limestone) by testing two commercial anti-graffiti products. It was found that the nanotechnological product Ector (E) was more effective than Nord Resine (NR) in anti-graffiti applications even if its permanent character hinders its application to the cultural heritage. Conversely, the less performant NR could be used in this field due to its sacrificial behavior, according to the guidelines of the Italian Ministry of Cultural Heritage and Activities and Tourism. The findings highlight the importance of developing new sustainable methods for the preservation of cultural and building materials from vandal graffiti, which should combine the high hydrophobia, the ecological characteristics, and the effectiveness of E, with the sacrificial properties of NR.
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Kisová Z, Pavlović J, Šefčiková L, Bučková M, Puškárová A, Kraková L, Šišková AO, Kleinová A, Machatová Z, Pangallo D. Removal of overpainting from an historical painting of the XVIII Century: A yeast enzymatic approach. J Biotechnol 2021; 335:55-64. [PMID: 34090948 DOI: 10.1016/j.jbiotec.2021.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/17/2021] [Accepted: 06/01/2021] [Indexed: 11/17/2022]
Abstract
Biocleaning of cultural heritage items is mainly performed using living microorganisms. Approaches utilizing the enzymes of isolated microorganisms have not been frequently investigated. To find an enzymatic alternative for the removal of an oil-based overpainting, we focused on the characterization and use of a yeast Extracellular Enzymatic Mixture (EEM). A historical silk yeast was selected for its lipolytic properties and its EEM was extracted after cultivation on a medium supplemented with linseed oil. The EEM protein content was visualized by SDS-PAGE, its concentration assessed by fluorimeter and the enzymatic activity evaluated by p-NPP spectrophotometric lipase assay. The yeast growth was suppressed by adding diverse metal ions (Cd, Zn, Cr and Cu) in Reasoner's 2A (R2A) broth, while the quantity and activity of EEM were affected by adding Fe and Pb. Various delivery systems (agar-agar, tylose and klucel G) alone or in a combination with EEM were assayed on the historical painting surface. The colorimetric measurements and the ATR-FTIR analysis indicated that the combinations tylose-EEM and klucel G-EEM can be easily and effectively applied as biocleaning procedures to remove oil-based overpainting from fragile and valuable historical painting surfaces.
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Affiliation(s)
- Zuzana Kisová
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Jelena Pavlović
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Lucia Šefčiková
- Academy of Fine Arts and Design in Bratislava, Hviezdoslavovo námestie 18, 814 37 Bratislava, Slovakia
| | - Mária Bučková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Andrea Puškárová
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Lucia Kraková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia
| | - Alena Opálková Šišková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia; Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia
| | - Angela Kleinová
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia
| | - Zuzana Machatová
- Academy of Fine Arts and Design in Bratislava, Hviezdoslavovo námestie 18, 814 37 Bratislava, Slovakia
| | - Domenico Pangallo
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; Caravella, s.r.o., Tupolevova 2, 851 01 Bratislava, Slovakia.
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Application of Microbial Cleaning Technology for Removal of Surface Contamination. DEVELOPMENTS IN SURFACE CONTAMINATION AND CLEANING: APPLICATIONS OF CLEANING TECHNIQUES 2019. [PMCID: PMC7149890 DOI: 10.1016/b978-0-12-815577-6.00015-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microbial cleaning takes advantage of naturally-occurring microbes to remove a wide variety of contaminants from various surfaces. The method is based on the affinity of microbes for hydrocarbons that are digested, producing harmless carbon dioxide, water, and soluble fatty acids. The microbes are nonpathogenic and are safe to handle and dispose. The process is environmentally-friendly and is less expensive than solvent cleaning, but it is not applicable to high precision cleaning applications. Typical applications include parts washing; oil and grease removal from concrete and other floor surfaces, and from drains and grease traps; cleaning and disinfection in healthcare facilities; cleaning of historical artworks and structures; and household and institutional cleaning applications.
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Application of polymer coatings and nanoparticles in consolidation and hydrophobic treatment of stone monuments. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0673-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Sanmartín P, DeAraujo A, Vasanthakumar A. Melding the Old with the New: Trends in Methods Used to Identify, Monitor, and Control Microorganisms on Cultural Heritage Materials. MICROBIAL ECOLOGY 2018; 76:64-80. [PMID: 27117796 DOI: 10.1007/s00248-016-0770-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 04/11/2016] [Indexed: 06/05/2023]
Abstract
Microbial activity has an important impact on the maintenance of cultural heritage materials, owing to the key role of microorganisms in many deterioration processes. In order to minimize such deleterious effects, there is a need to fine-tune methods that detect and characterize microorganisms. Trends in microbiology indicate that this need can be met by incorporating modern techniques. All of the methods considered in this review paper are employed in the identification, surveillance, and control of microorganisms, and they have two points in common: They are currently used in microbial ecology (only literature from 2009 to 2015 is included), and they are often applied in the cultural heritage sector. More than 75 peer-reviewed journal articles addressing three different approaches were considered: molecular, sensory and morphological, and biocontrol methods. The goal of this review is to highlight the usefulness of the traditional as well as the modern methods. The general theme in the literature cited suggests using an integrated approach.
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Affiliation(s)
- Patricia Sanmartín
- Laboratory of Applied Microbiology, School of Engineering and Applied Sciences, Harvard University, 58 Oxford St., Room 301, Cambridge, MA, 02138, USA
- Departamento de Edafología y Química Agrícola, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Alice DeAraujo
- Laboratory of Applied Microbiology, School of Engineering and Applied Sciences, Harvard University, 58 Oxford St., Room 301, Cambridge, MA, 02138, USA
| | - Archana Vasanthakumar
- Laboratory of Applied Microbiology, School of Engineering and Applied Sciences, Harvard University, 58 Oxford St., Room 301, Cambridge, MA, 02138, USA.
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Back to the past—forever young: cutting-edge biochemical and microbiological tools for cultural heritage conservation. Appl Microbiol Biotechnol 2018; 102:6815-6825. [DOI: 10.1007/s00253-018-9121-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/18/2018] [Accepted: 05/21/2018] [Indexed: 01/27/2023]
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