| Autor: |
Darta Ubele-Kalnina, Miho Nakamura, Karlis Agris Gross |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Journal of Functional Biomaterials, Vol 14, Iss 2, p 100 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2079-4983 |
| DOI: |
10.3390/jfb14020100 |
| Popis: |
Surface charges on implants improve integration into bone and so require a clear protocol for achieving a surface charge and comparable results from different laboratories. This study sintered hydroxyapatite (HAp) at one laboratory to remove the influence of the microstructure on surface charge and then polarized/depolarized the pellets at two different laboratories (in Tokyo and Riga). Surface charges on HAp pellets induced by electric polarization at 400 °C in a 5 kV/cm DC electric field were measured by the thermally stimulated depolarization current (TSDC) method as 6–9 µC/cm2. The surface charge results were comparable between laboratories and also agreed with previously documented values. Recommendations describe conditions for polarization and depolarization to generate a surface charge and repeatedly achieve a comparable outcome. A visual display of the polarization mechanisms and the contribution to surface charge point to further aspects that need further development. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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