1. Dipartimento di ChimicaUniversità degli Studi di Bari “Aldo Moro” via Orabona 4 Bari 70126 Italy
2. CNR IC–Institute of Crystallography via Amendola 122/O Bari 70126 Italy
3. Silklab, Department of Biomedical EngineeringTufts University 4 Colby Street Medford MA 02155 USA