1. Institute of Biomembranes, CBLE, Department Biochemistry of Membranes, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands, Debye Institute, Department of Interfaces, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands, and Department of Medicinal Chemistry, Utrecht University, Sorbonnelaan 16, 3584 CA, Utrecht, The Netherlands