S1 Isabelle Richard 1 , Marc Thibault 1 , Gregory De Crescenzo 1,2 , Michael D Buschmann 1,2 , Marc Lavertu 1 1 Institute of Biomedical Engineering and Department of Chemical Engineering, 2 FRQS Groupe de Recherche en Sciences et Technologies Biomédicales (GRSTB), Ecole Polytechnique, P.O. BOX 6079, Station Centre3ville, Montréal (QC) Canada H3C 3A7