| In 1797 Ekeberg showed that gadolinite contained another rare earth, which was given the name yttria. |
| Yttria occurs only in a few rare minerals, and usually in company with terbium and erbium. |
| The electrolyte is an ion-conducting oxide such as zirconia treated with yttria. |
| Yttria may be obtained from gadolinite by a similar process to that by which glucina is extracted from the beryl. |
| In the present work, an in vitro drug release of two drug loaded forms of the zirconia and yttria stabilized zirconia is studied. |
| Zirconia nanoparticles stabilized with yttria are used to solve this problem. |
