1. Department of Chemistry and Applied BiosciencesInstitute for Chemical and Bioengineering, ETH ZurichZurich Switzerland
2. RBM S.p.A. Istituto di Ricerche Biomediche A.Marxer, MerckRome Italy
3. Department of Chemical EngineeringUniversity of Chemistry and Technology, Technicka 5, 166 28Prague Czech Republic