Hi, Giuly, Regarding to your question whether WL-5000 (Dow Corning) photopatternable silicone biocompatible, here is information that the WL-5000 should not come into contact with tissues or fluids (blood) that are in (or will be placed in) the human body. Good luck for your reserch! Lydia ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/