Rare earth luminescent particles and their application as diagnostic agents

摘要

The invention relates to a luminescent particle containing a1-xlnxvo4 nanoparticles selected from L '(y, y, y, y, y, y, y, y, y, y, I).Gallium1. Lanthanum and its mixture;Ln from EuropeButyl siliconSamaritanNew meaningerbiumYttrium (Yb) and its mixtures;1.0 lt lt 1；0 lt y lt 1；It is characterized by the presence of nanoparticles on the surface of tetraalkylammonium cations. The invention also relates to a method for preparing such luminous particles, colloidal suspension of these particles and their application as a diagnostic agent, and a diagnostic kit containing the luminous particles.