Dispersion of the Photosensitizer 5,10,15,20-Tetrakis(4-Sulfonatophenyl)-porphyrin by the Amphiphilic Polymer Poly(vinylpirrolidone) in Highly Porous Solid Materials Designed for Photodynamic Therapy / Julio 2017 / Claudia Díaz, Héctor Pesenti, Ignacio Moreno-Villoslada, José Catalán-Toledo, Judit Lisoni, Mario E. Flores, Sandra L. Orellana