Hydroxide nanoparticles for cultural heritage: Consolidation and protection of wall paintings and carbonate materials

► Colloidal Science provide effective tools for the preservation of artworks. ► Scaling-down of state-of-the-art systems allows the production of fine nanoparticles. ► Alkaline-earth hydroxides dispersions are applied for consolidation purposes. ► Particles' dispersity and size can be controlled by changing synthetic pathways. ► Mixed hydroxide treatments efficiently allow the preservation of historical sites.