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J. Korean Ceram. Soc. > Volume 45(10); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(10): 638.
doi: https://doi.org/10.4191/kcers.2008.45.1.638
Ti-6Al-7Nb and Ti-6Al-4V 합금의 생체활성에 미치는 콜라겐 처리의 영향
김태호, 이갑호, 홍순익
충남대학교 신소재공학과
Effect of Collagen Treatment on Bioactivity of Ti-6Al- 7Nb and Ti-6Al-4V Alloys
Tae-Ho Kim, Kap-Ho Lee, Sun-Ig Hong
Department of Advanced Materials Engineering, Chungnam National University
Biomimetic apatite formation and deposition behaviors of Ti-6Al-7Nb and Ti-6Al-4V plates in simulated body fluids(SBF) under various conditions were examined. In case of regular samples without collagen treatments the weight gain due to apatite precipitation on the surface in Ti-6Al-4V was found to be higher than in Ti-6Al-7Nb. In case of collagen-coated samples, the weight gain in Ti-6Al-4V continued to be higher than in Ti-6Al-7Nb, but the difference between the two became smaller. Both Ti-6Al-7Nb and Ti-6Al-4V samples with collagen coating exhibited an appreciable increase of weight gain, which may be caused by the interaction between collagen and $Ca^{+2}$ ions. The weight gain was found to be not much affected by the addition of collagen to SBF. The ill-defined granular structure in the presence of collagen can be associated with the increasing volume fraction of amorphous calcium phosphate.
Key words: Ti alloys, Biomimetic deposition, Apatite, Collagen, SBF
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