申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
公开号:US20160030599A1
公开(公告)日:2016-02-04
The present invention relates to particles, useful for drug release detection, comprising:
at least one luminescent metal complex of formula [Ln].[L], wherein:
Ln is a lanthanide ion,
L is an organic ligand comprising a hydrophilic unit with at least 6 chelating groups chosen from the group consisting of hydroxyl, carboxyl, optionally in the carboxylate form, carbonyl, ether, phosphonate, phosphinate, thiolate, amino and imino functions, and
at least one drug comprising a conjugated aromatic system, wherein said drug is not covalently bonded to the metal complex,
said particle having a size comprised from 3 nm to 2000 nm, and wherein the distribution of the metal complex and the drug within the particle is such that the mean distance between a drug molecule and a metal complex is less than 15 nm.