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.
Download:
IMEKO-MetroArchaeo-2023-115.pdf
DOI:
10.21014/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
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