| abstract |
A marker for protection valuable liquid and solid materials comprising organic or nonoraganic liquid solvents as dispersed medium, surface active substances on nanomaker, characterized in that nanomarker is a homogeneous mixture of two or more different nanoluminophors, favourable chosen from metals, nanocrystalline metal oxides -A 2 O 3 , -granates-A 3 B 5 O 12 , per-ovskites-AB0 3 , spinels-AB 2 O 4 or stoichiometric compounds with large concentrations of optically active ions like fluorides, oxy-chlorides and others. |