1. Department of Industrial Engineering; Centre for Mechanics of Biological Materials, University of Padova; Via Venezia 1, Padova PD 35131 Italy
2. IENI-CNR; via Marzolo 1, Padova 35131 Italy
3. Section of Chemistry for Technology, Department of Industrial Engineering; University of Padua; Via Marzolo 1, Padova PD 35131 Italy