1. School of Chemistry, University College Dublin, Belfield Dublin 4, Ireland
2. Institute of Biomaterials and Bioengineering, Faculty of Natural Sciences and Technology, Riga Technical University, Pulka St 3, Riga LV-1007, Latvia
3. Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kipsala Street 6A, Riga LV-1048, Latvia
4. GeoZentrum Nordbayern, Mineralogy, Friedrich-Alexander-Universität Erlangen-Nuernberg (FAU), Schlossgarten 5a, Erlangen 91054, Germany