1. Laboratory on Structure and Properties of Polymers, Faculty of Chemistry and Pharmacy Sofia University Sofia Bulgaria
2. NMR Laboratory, Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences Sofia Bulgaria
3. 3B's Research Group–Biomaterials, Biodegradables and Biomimetics University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Guimarães Portugal
4. ICVS/3B's–PT Government Associate Laboratory Guimarães Portugal