Fig. 3From: Photonics and Nanophotonics and Information and Communication Technologies in Modern Food PackagingStern-Volmer dependencies of the ratio of luminescence intensities on the concentration of quencher for different wavelengths of excitation. Luminescent-magnetic nanocomposites (nano-ZnO and magnetite in polystyrene matrix) were used for obtaining the dependencies, magnetite serving as a quencherBack to article page