Abstract
The biomimetic deposition rate of apatite for Ti-6Al-4V was found to be greater than that for Ti-6Al-7Nb in regular 1 × Modified SBF. The coating of collagen was found to enhance the biomimetic deposition of apatite on Ti-6Al-4V and Ti-6Al-7Nb. The nucleation and growth of the apatite deposition layer was faster on collagen coated Ti alloys. An interesting observation is that the granular structure became less clear and the nodular boundary became obscure in apatite deposited on the collagen-coated Ti alloys. The ill-defined granular structure may be associated with the presence of more amorphous calcium phosphate. The morphology of apatite nodules was found to be modified by collagen coating and collagen addition.
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