Controlled release of ibuprofen by meso-macroporous silica

Ibuprofen release profiles for the materials obtained from samples P84_meso (black diamonds), P84_20% (white squares), P84_50% (black triangles), P84_75% (white diamonds), P84_75% functionalized by grafting (black squares) and P84_75% functionalized by co-condensation method (white triangles).