1. 3B's Research Group-Biomaterials; Biodegradables and Biomimetics; Department of Polymer Engineering; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark S. Cláudio de Barco Caldas das Taipas Guimarães, Portugal
2. ICVS/3B's-PT Government Associate Laboratory; Braga/Guimarães Portugal
3. Institute of Composite and Biomedical Materials; National Research Council of Italy; P.le Tecchio 80 80125 Naples Italy