1. Laboratory for Aquatic Biology, KU Leuven, Campus Kulak Kortrijk, Etienne Sabbelaan 53, box 7659, B-8500 Kortrijk, Belgium
2. Renewable Materials and Nanotechnology Research Group, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, Etienne Sabbelaan 53, box 7659, B-8500 Kortrijk, Belgium
3. Department of Physics and Astronomy, Soft-Matter Physics and Biophysics Section, KU Leuven, Celestijnenlaan 200 D, box 2416, B-3000 Heverlee, Belgium