Improving the strength and biocompatibility of porous titanium scaffolds by creating elongated pores coated with a bioactive, nanoporous TiO2 layer |
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Authors: | Jong-Hoon Lee Kwan-Ha Shin |
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Affiliation: | a Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Koreab Department of Dental Laboratory Science and Engineering, Korea University, Seoul 136-703, Republic of Korea |
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Abstract: | This paper reports a novel way of improving the mechanical properties and biocompatibility of porous Ti scaffolds using a combination of the modified sponge replication method and anodization process. The use of a stretched polymeric sponge as a novel template allowed the creation of elongated pores in a porous Ti scaffold, which, accordingly, led to a high compressive strength of 24.2 ± 2.08 MPa at a porosity of approximately 70 vol%. Furthermore, the surfaces of the Ti walls were coated successfully with a bioactive nanoporous TiO2 layer using the anodization process, which enhanced the biocompatibility remarkably, as assessed by the attachment of MC3T3-E1 cells. |
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Keywords: | Metals and alloys Porosity Mechanical properties Titanium Biomaterials |
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