Patent ID: 8771642

Claim:
Particle comprising a micelle, which, on its turn, has a substantially hydrophilic shell and a substantially hydrophobic central portion; a core, which is located in the area of the micelle central portion and comprises a silicate network; and at least an active compound; the micelle comprising a plurality of molecules of at least a surfactant, which molecules comprise at least a molecule of a functionalized surfactant having the following structure: M 1 -Hydro 1 -Lipo-Hydro 2 -M 2 wherein Lipo represent a substantially hydrophobic chain; Hydro 1 and Hydro 2 represent, independently of each other, a respective substantially hydrophilic chain; M 1 has the following structure: RBM 1 -BL 1 - wherein RBM 1 represents a recognition bio-molecule, BL 1 represents a bridge linker chosen in the group consisting of: and amide; M 2 is selected in the group consisting of: —H, —OH and the following structure: —BL 2 -RBM 2 wherein RBM 2 represents a recognition bio-molecule, BL 2 represents a bridge linker chosen in the group consisting of: and amide; R 20 being chosen in the group consisting of: —H, a linear alkyl group, a cyclo-alkyl group, an aromatic ring, a hetero-group; the surfactant and the active compound are different from each other; the molecules of the surfactant comprise a non functionalized surfactant having the following structure: Hydro 3 -Lipo 1 -Hydro 4 wherein Lipo 1 represent a substantially hydrophobic chain; Hydro 3 and Hydro 4 represent, independently of each other, a respective substantially hydrophilic chain; the molar ratio between the non functionalized surfactant and the functionalized surfactant is at least 3/1.