1. Institute of Physical and Theoretical Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
2. Laboratoire Lumière, nanomatériaux & nanotechnologies − L2n and CNRS ERL 7004, Université de Technologie de Troyes, 12 rue Marie Curie, 10000 Troyes, France
3. Reutlingen Research Institute, Process Analysis and Technology (PA&T), Reutlingen University, Alteburgstraße 150, 72762 Reutlingen, Germany
4. Department of Neurosurgery, Schwarzwald-Baar Clinic, Klinikstraße 11, 78052 Villingen-Schwenningen, Germany