The director of the Institute of Theoretical and Applied Mechanics of the AS CR, Miloš Drdácký, writes about nanomaterials in the conservation and restoration of culture heritage. He explains that the complex tasks of the consolidation and conservation of historic mortars can be solved effectively by using such nanomaterials as Nano. lime that is available under the name CaLoSil, a new stone strengthener based on colloidal suspensions of lime nanoparticles in various solvents. and Miloš Drdácký a Zuzana Slížková.