1. Laboratory of Organic and Macromolecular Chemistry; Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
2. Jena Center for Soft Matter; Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
3. Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy; Friedrich Schiller University Jena; Lessingstr. 8 07743 Jena Germany
4. School of Chemistry; University of Bristol; Bristol BS8 1TS UK