Process for recovery of metallic and mineral surfaces by self-assembled monolayers of bisphosphonic compounds and their uses

The invention relates to a method of covering a metal or inorganic substrate by a molecular functionalization layer, characterized in that it comprises the following steps: - possibility of prior oxidation of the surface of the substrate so as to have functions hydroxyl on the surface of the substrate, - contacting the substrate surface with a covering liquid composition containing bisphosphonic compounds, and their toxicologically acceptable salts, until self-assembly of said bisphosphonic compounds in a layer covering said surface, - dehydration of the surface thus coated, the functionalized substrate obtainable by this method, the bisphophoniques compounds contained in the coating liquid composition and uses of this substrate and the bisphosphonic compounds.