Natalia Rovella, Elia Fiorenza, Donatella Barca
In the present study, the glass tesserae from three Roman mosaics located in S. Aloe quarter -Vibo Valentia (Calabria Italy) were analysed, with the aim of investigating the colouring and opacification techniques. The micro-chemical characterization of the tesserae was conducted by means of EMPA-WDS and LA-ICPMS. Results show that all the tesserae are natron-based and chemically comparable with major Roman compositional groups. In addition, the colouring/opacification techniques identified are consistent with the presumed Roman dating of the mosaics.
TC4 MetroArchaeo 2020 (ONLINE)
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Sebastiano D'Amico, Valentina Venuti, Emanuele Colica, Giuseppe Paladini, Luciano Galone, Vincenza Crupi, Domenico Majolino, Sante Guido, Giuseppe Mantella
The paper presents the results of scientific investigations carried out in support of a professionally executed restoration on two paintings by Mattia Preti, located in the Church of the Immaculate Conception of Sarria in Floriana, Malta. In particular, the attention was mainly paid on a combined approach, using 2D/3D survey in order to formulate hypothetic reconstruction, and XRF spectroscopy in order to get more information on how the master prepared the various types of materials, with particular regard to the painting preparation, the pigments palette and the formulation of shades and...
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Maduka L. Weththimuni, Marwa Ben Chobba, Ilenia Tredici, Maurizio Licchelli
ZnO is widely used in different technological areas due to its beneficial qualities such as high chemical stability, non-toxicity, high photoreactivity, and cheapness. Based on its antibacterial activity, recently it has found also application to prevent bio-deterioration of cultural heritage buildings. As many authors suggested, doped ZnO nano-structures exhibit better antibacterial properties than undoped analogues. In the present work, ZnO nanoparticles doped with ZrO2 have been prepared by a sol-gel method in order to enhance the photocatalytic properties as well as the antibacterial...
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Elena Pérez-Monserrat, Lara Maritan, Marie-Ange Causarano, Alejandra Chavarría, Gian Pietro Brogiolo
Yellowish hue bricks used at the Basilica of Saint Justina of Padua (Northern Italy) produced during the 5-6 th centuries (Late Antiquity times) were analysed: i) bricks located at the original placements, very humid areas where the environmental conditions remain almost constant during the day, and ii) reused bricks placed at Medieval walls exposed to insolation and quite fluctuating conditions. The first displayed good conservation state and a pale yellowish colour. The reused bricks shown granular disaggregation and a dark yellowish colour. The formation of zeolites as hydration products...
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Leila Es Sebar, Leonardo Iannucci, Sabrina Grassini, Emma Angelini, Marco Parvis, Andrea Bernardoni, Alexander Neuwahl, Rita Filardi
The construction of the Santa Maria del Fiore Cupola, also known as Brunelleschi's Cupola, was one of the most challenging and revolutionary projects of the Renaissance, specifically from the technical point of view. The Cupola, whose construction was completed in 1436, more that 100 years after the beginning of the Cathedral building, is one of the greatest architecture masterworks. Its construction was possible only thanks to the revolutionary ideas and innovations of Brunelleschi's project. New tools and machines were designed in order to overcome the technical difficulties of the...
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Paolo Triolo, Luciano Marras, Gloria Adinolfi, Rodolfo Carmagnola, S. Legnaioli, S. Raneri, V. Palleschi
Imaging systems are the basic tools of the trade for Art historians, conservators, and Archaeologists, when they are called to document the result of their work. However, photo cameras and imaging systems are also powerful instruments for research. These systems are, in fact, intrinsically portable and give the possibility of acquiring highresolution, spectrally resolved digital images that can be elaborated exploiting the most advanced algorithms of information science. In this contribution, we will outline the many possibilities opened by the available instrumentation and techniques, to...
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L. Sottili, L. Guidorzi, A. Mazzinghi, C. Ruberto, L. Castelli, C. Czelusniak, L. Giuntini, M. Massi, F. Taccetti, M. Nervo, A. Re, A. Lo Giudice
In the field of Heritage Science, mobile instruments for preservation of artworks are more and more in use. INFN-CHNet, the network of INFN devoted to Cultural Heritage, develops instruments and methods to support the research in the field. Among the others, a MA-XRF scanner was built for in-situ analysis. It is fully operative and has been employed in museums, conservation centres and out-door fields. Recently the INFN-CHNet MA-XRF scanner was employed at the CCR La Venaria Reale, Turin, for the analysis of different artworks undertaking conservation treatments. The versatility of the...
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Simona Raneri, Germana Barone, Paolo Mazzoleni, Danilo Bersani
Since antiquity, gems fascinated worldwide cultures, being used for adorning jewels or precious objects. Gems analysis primarily aims to determine identity, origin (natural or synthetic) and geographic or geological source of a gem, which in turn define its value. In view of preciousness and rarity of gems, their analysis requires the use of non-destructive or micro-destructive methods, some of which might be limited when gems are mounted in jewels. Beside traditional gemological tools and laboratory instruments, portable/mobile analytical methods are especially useful to study gems in...
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S.A.B. Lins, M. Manso, G.E. Gigante, R. Cesareo, L. Tortora, P. Branchini, S. Ridolfi
In Heritage Science applications, in-situ and non-destructive analyses are commonly preferred. The valuable nature of historical objects often hinders the possibility of either sample or transport them into laboratories. Macro X-ray fluorescence (MA-XRF) has become widespread in the archaeometry field, due to its non-destructive and non-invasive characteristics and especially to the amount of information provided by the technique. Unfortunately, most of the instruments are either fixed or mobile, hindering their in-situ applications. Moreover, most of the mobile instrumentation are bulky and...
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Chiara Maria Lebole, Greta Lupano, Sylvie Cheney, Giorgio Di Gangi
Characteristic of Alpine settlements is the low percentage of metal finds and it s very important to know the different metals (or metal alloy) used to produce the objects and XRF it s the handheld and mobile instrumentation more suitable for this purpose.
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