1. a Center for Education and Research on Macromolecules (CERM), University of Liege, B6 Sart-Tilman, B-4000 Liege, Belgium
2. b PhysIOL SA, Parc Scientifique du Sart-Tilman, Allee des noisetiers 4, B-4031 Liege, Belgium
3. c Laboratory of Histology and Cytology, University of Liege, B6 Sart-Tilman, B-4000 Liege, Belgium
4. d Inorganic Structural Chemistry, University of Liege, B6 Sart-Tilman, B-4000 Liege, Belgium
5. e Center for Education and Research on Macromolecules (CERM), University of Liege, B6 Sart-Tilman, B-4000 Liege, Belgium
6. f Center for Education and Research on Macromolecules (CERM), University of Liege, B6 Sart-Tilman, B-4000 Liege, Belgium. c.jerome@ulg.ac.be