Representative biomaterial scaffolds fabricated from silk and silk fibroin solution for MTE: braided silk cords,9 knitted silk nets,19 silk fibroin films,20 silk fibroin microparticles,21 electrospun silk fibroin nanofibers,22 3D porous silk fibroin sponges,23,24 and silk fibroin hydrogels.25 (A color version of this figure is available in the online journal.)