This study evaluated both the possible fungal metabolites involved in degradation of commercial consolidant known as Paraloid® B72 and national artisanal named transparent dispersion casein deteriorative potential melanised fungi. Fungi were found to have capacity produce organic acids, proteases esterases when they grow on consolidants, which can be used nutrients. Mycelia produced by fungi af...

Abstract The lack of a standardised methodology for the application coatings on heritage metals can lead to non-comparable results. A careful and meaningful study requires considering different variables involved, especially in preparation coupons. In this work, effect that these have protective capacity used has been studied. influence thickness, number layers drying time (between final) Paral...

This work presents a corpus of measurement methodologies utilized during multidisciplinary project, aiming at the protection and conservation ancient steel joints (clamps dowels) Acropolis monuments, undertaken by Restoration Service (YSMA). The Laboratory Physical Chemistry National Technical University Athens collaborated with YSMA in designing evaluating laboratory scale field experiments, t...

This study highlights the decomposing role through hydrolytic activities of fungi isolated from natural environments represented by brackish and hypersaline lakes in Romania. Novel strains belonging to Penicillium, Aspergillus, Emericellopsis genera were screened for ability produce extracellular enzymes, i.e., proteases, lipases, amylases, cellulases, xylanases, pectinases. According salt requ...

This work presents the formulation and characterization of a new product for protection outdoor frescoes from aggressive environmental agents. The is designed as an innovative green coating, prepared through zero-waste one-pot-synthetic method to form silver nanoparticles (AgNPs) directly in chitosan-based medium. AgNPs are seeded grown mixed hydrogel chitosan, azelaic, lactic acid, by reductio...

Abstract In the present study, 5 different consolidants were tested on marble varieties preliminarily subjected to artificial weathering, evaluate their consolidating effectiveness and thermal behavior after consolidation, in terms of residual strain heating–cooling cycles dry wet condition tendency bowing. Treatments based ethyl silicate, with without a coupling agent improve performance calci...

This paper presents results on the protective properties of different coatings over metals representative those found in scientific–technical heritage collections. An examination several objects collection Spanish National Museum Science and Technology have allowed identification brass steel as most metals, existence (mainly shellac acrylic resins) applied for aesthetic and/or conservation purp...

Materials, both natural and synthetic, are used as adhesives or consolidants during the conservation of cultural objects. However, few have been formulated specifically for needs heritage. This article describes a study stability ethylene butyl acrylate copolymers well blends these polymers with low molecular weight resins, which may be consolidating flaking fragile paint layers. The materials ...