1. Interuniversity Research Center on Bioactive Peptides (CIRPeB), University of Naples “Federico II”, and Institute of Biostructures and Bioimaging of CNR, Via Mezzocannone, 16 I-80134 Naples, Italy, Department of Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy, and Institute of Physical Chemistry, NCSR “Demokritos” Ag. Paraskevi 15310 Athens, Greece