1. Interfaces, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam-Golm, Germany, Analytical Biochemistry, University of Potsdam, 14476 Potsdam-Golm, Germany, Magnetic Resonance Center, Department of Chemistry, University of Florence, 50019 Sesto Fiorentino (FI), Italy, and Biosystems Technology, Wildau University of Applied Sciences, 15745 Wildau, Germany