Polychrome surfaces

Nanocomposite based on TiO2 and Aquazol® for the conservation of matte painted surfaces

The aim of this research is the development of nanocomposites where TiO2 nanoparticles are applied in a polymeric matrix (poly 2-ethyl-2-oxazoline, Aquazol 200®) to be used as consolidant and protective films for matte painted surfaces. The nanoparticles are able to enhance the optical properties of the pristine polymer, obtaining transparent films, characterized by an high refractive index, to be used as UV filter, preserving the original roughness of the surface, showing aesthetical compatibility, chemico-physical stability and reversibility.

Contact person:Francesca Gherardi

  • Beccaria C., Colombo A., Gherardi F., Mombrini V., Toniolo L. Use of nanocoatings for the restoration of matte paintings. Studies in Conservation. 2016;61(sup2):265-266.
  • Colombo A., Gherardi F., Goidanich S., Delaney J. K., de la Rie R., Ubaldi M. C., Toniolo L. and Simonutti R., “Highly Transparent Poly(2-ethyl-2-oxazoline)-TiO2 Nanocomposite Coatings for the Conservation of Matte Painted Artworks”, RSC Advances, 2015, 5(103), 84879-84888.
Monitoring of Masolino’s wall paintings in Castiglione Olona

The project consisted in the study of the state of conservation of Renaissance frescoes by Masolino da Panicale into the Baptistery of Castiglione Olona Collegiate. The analyses were carried out by means of non-invasive reflectance imaging aimed at monitoring the colour variation of the painted surfaces during a three years period.

Contact person:Lucia Toniolo

  • D. Comelli, A. Nevin, G. Valentini, I. Osticioli, E. M. Castellucci, L. Toniolo, D. Gulotta, R. Cubeddu, Insights into Masolino’s wall paintings in Castiglione Olona: Advanced reflectance and fluorescence imaging analysis, in “Journal of Cultural Heritage”, 12 (2011), pp. 11–18
Andrea Pozzo and the frescos of "Chiesa della Missione", Mondovì

The interior of the “Chiesa della Missione” has a unique decoration originally designed by Andrea Pozzo, which has been investigated during the last conservative intervention. The research aimed at characterizing the superficial materials and finishing, as well as at evaluating their state of conservation. The collaboration with the restorers allowed the identification of specific conservation issues, which were addressed by the diagnostic activity, and provided a valuable support for the selection of materials and methodologies for the intervention.

Contact person: Davide Gulotta

  • L. Toniolo, D. Gulotta. Diagnostica per la conoscenza e la valutazione dello stato di conservazione. In H.W. Pfeiffer (a cura di), “Andrea Pozzo a Mondovì”. Jaca Book, Milano 2010, pp. 234-235. ISBN: 978-88-16-60449-0