1. Laboratory for Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
2. Department of Proteomics and Microbiology, University of Mons, Mons 7000, Belgium
3. Department of Environmental Microbiology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf 8600, Switzerland