1. Institute of Polymers, Bulgarian Academy of Sciences, Sofia, Bulgaria
2. Department of Pharmacology, Pharmacotherapy and Toxicology, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria
3. Department of Nanostructured Materials, Centre for Polymer and Carbon Materials of the Polish Academy of Sciences, Zabrze, Poland
4. Department of Chemical Engineering, McGill University, Montreal, Canada
5. Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Medical University-Sofia, Sofia, Bulgaria