1. Institute of Materials, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
2. Organic Materials & Devices, Institute of Polymer Materials, Interdisciplinary Center for Nanostructured Films (IZNF), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058 Erlangen, Germany
3. Nestlé Research, Institute of Food Safety and Analytical Sciences, Vers-chez-les-Blanc, Box 44, 1000 Lausanne, Switzerland
4. Interfaculty Bioengineering Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland