1. Institute for Medicines and Medical Devices of Montenegro , 81000 Podgorica , Montenegro
2. Inorganic Polymer Department ‘Petru Poni’ , Institute of Macromolecular Chemistry , Aleea Gr. GhicaVodai 41A , 700487 Iasi , Romania
3. Department of Theoretical Physics and Condensed Matter Physics ‘VINČA’, Institute of Nuclear Sciences, National Institute of the Republic of Serbia , University of Belgrade , PO Box 522 11001 Belgrade , Serbia
4. Faculty of Metallurgy and Technology , Džordža Vašingtona bb University of Montenegro , Podgorica , Montenegro