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Nano-hydroxyapatite for the conservation of Serena stone

Maduka Lankani Weththimuni, Giacomo Fiocco, Francesca Volpi, Marco Malagodi, Maurizio Licchelli
  • Abstract:
    In past decades, interest in using nanomaterials for the preservation of valuable cultural heritages was rapidly increased due to their excellent properties. In the present study, a biomimic method for the consolidation of sandstone (i.e. Serena stone) by hydroxyapatite was investigated. The strategy is to mimic the growth of bone like crystals: calcium (as Ca(OH)2 nanoparticles) and phosphorus (as diammonium hydrogen phosphate) are introduced into stone substrate and then, mineralized in-situ at room temperature. Before the treatments, Ca(OH)2 nanoparticles have been synthesized and characterized by different methods: scanning electron microscopy (SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS). In addition to that, the conservation efficacy was ascertained by measuring physical-structural properties, especially the resistance to weathering induced by salt crystallization.
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  • DOI:
    tc4-ARC-2023.115

Event details:

  • IMEKO TC:
    TC4
  • Event name:
    TC4 MetroArchaeo 2023
  • Title:

    IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

  • Place:
    Rome, ITALY
  • Time:
    19 October 2023 - 21 October 2023