1. Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
2. Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Teslova 30, Ljubljana SI-1000, Slovenia
3. Faculty of Medicine, University of Maribor, Taborska ulica 8, Maribor 2000, Slovenia
4. National Laboratory for Health, Environment and Food, Prvomajska ulica 1, Maribor 2000, Slovenia
5. Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Ljubljanska ulica 5, Maribor 2000, Slovenia