Rat osteoblasts growth on surface of plasma-sprayed bioceramic coatings

Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

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Original languageEnglish
Article number5P44
Journal / PublicationIEEE International Conference on Plasma Science
Publication statusPublished - 2004


Title31st IEEE International Conference on Plasma Science (ICOPS2004)
PlaceUnited States
Period28 June - 1 July 2004


Al2O3, ZrO2, TiO2 and wollastonite coatings were deposited onto Ti-6Al-4V substrates employing atmospheric plasma spraying. Rat osteoblasts were subsequently seeded onto the surface of the coatings to evaluate the growth behavior of osteoblasts on the different materials. Scanning electron microscopy (SEM) was used to evaluate the morphologies of the osteoblasts seeded onto the surface of the coatings for different duration of time. Our data indicate that it is difficult for the osteoblasts to survive and proliferate on the Al2O3 surface showing that this coating has very poor biocompatibility. Osteoblasts can, however, survive and proliferate slowly on the TiO2 and ZrO 2 coating surface indicating that these two coatings have certain cyto-compatibility while they cannot accelerate the proliferation very well on the surface of the wollastonite coating. Therefore, the biocompatibility of wollastonite coating is better than that of Al2O3, TiO2 and ZrO2 coatings.