A comparative biocompatibility study of graded TiC/a-C coatings prepared by dcMS and chopped-HiPIMS
| Autor: | Meško, M., Gotzmann, G., Bohovičová, J., Zacková, P., Čaplovič, Ľ., Munnik, F., Čaplovičová, M., Vančo, Ľ., Skákalová, V., Krause, M. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Zdroj: | The Fourteenth International Symposium on Sputtering and Plasma Processes (ISSP 2017), 05.-07.07.2017, Kanazawa, Japan, ISSN 2187-7637, 256-259 The Fourteenth International Symposium on Sputtering and Plasma Processes (ISSP 2017), 05.-07.07.2017, Kanazawa, Japan |
| Popis: | Differences in the structural and biocompatibility properties of graded TiC/a-C coatings prepared by direct current magnetron sputtering (dcMS) and chopped -high power impulse magnetron sputtering (c-HiPIMS) were studied. The higher ID/IG ratio in c-HiPIMS a-C films is due to the clustering of the sp2 phase as indicated by Raman spectroscopy. C-HiPIMS a-C films are more hydrophobic with contact angle difference of about 9 % in comparison to the dcMS films at average power of 250W. The metabolic activity of human fibroblast cells cultivated on the samples grown by c-HiPIMS is of about 20 % higher than that of the samples deposited by dcMS. The increased metabolic activity is due to a confluent cell layer on these surfaces. The investigation of the cell morphology revealed no negative influence on biocompatibility for both deposition methods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|