1. Institut für Physik und Astronomie
2. University of Potsdam
3. 14476 Potsdam
4. Germany
5. Department of Polymers and Optics
6. Departamento de Química Física and CINBIO
7. Universidade de Vigo
8. Vigo
9. Spain
10. Departamento de Química Física
11. 36310 Vigo
12. BioNanoPlasmonics Laboratory
13. Fraunhofer Institute for Applied Polymer Research (IAP)
14. Faculty of Science