1. Laboratory for Biomaterials and Bioengineering; CRC-I, Department of Mining, Metallurgical and Materials Engineering and CHU de Quebec Research Centre, Laval University; Quebec City QC G1L 3L5 Canada
2. Department of Chemistry; Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano; Milan 20133 Italy
3. Local Unit Politecnico di Milano; INSTM, Consorzio Nazionale di Scienza e Tecnologia dei Materiali; Milan Italy