Matrix and device and use thereof for optically-controlled release of chemicals

A device for optically-controlled release of chemical species, comprising:

• a porous polymeric matrix with pores with size so as to allow the passage of a chemical species to be delivered, said matrix being substantially transparent to a light flux;
• a plurality of nanometric particles dispersed in said porous polymeric matrix with a substantially homogeneous distribution, apt to be excited when they are invested by said light flux by producing heat;
• and
• a plurality of thermosensitive supramolecular structures of amphiphilic molecules, including said chemical species to be delivered at a predetermined administration temperature, said thermosensitive supramolecular structures being dispersed and constrained to said porous polymeric matrix,
• wherein said nanometric particles and said thermosensitive supramolecular structures of amphiphilic molecules are distinct to each other following to different dispersions
• the nanometric particles being apt to increase the average temperature of the porous polymeric matrix at said predetermined administration temperature when the porous polymeric matrix is illuminated by a light flux at a predetermined illumination intensity, the nanometric particle dispersion being chosen to not affect the structural integrity of the porous polymeric matrix at said predetermined administration temperature.