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Formation of Amorphous TiO<sub>2</sub> Film on Ti Using Anodizing in Concentrated H<sub>3</sub>PO<sub>4</sub> Aqueous Solution and Its Osteoconductivity
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- Yamamoto Dai
- Department of Materials Science & Engineering, Graduate School of Engineering, Nagoya University
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- Iida Takanori
- Department of Materials Science & Engineering, Graduate School of Engineering, Nagoya University
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- Kuroda Kensuke
- Department of Materials Science & Engineering, Graduate School of Engineering, Nagoya University
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- Ichino Ryoichi
- EcoTopia Science Institute, Nagoya University
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- Okido Masazumi
- Department of Materials Science & Engineering, Graduate School of Engineering, Nagoya University
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- Seki Azusa
- Hamri Co., Ltd.
Bibliographic Information
- Other Title
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- 高濃度リン酸水溶液中陽極酸化によるチタン表面へのアナターゼライクアモルファス皮膜の作製とその骨伝導性
- Formation of Amorphous TiO₂ Film on Ti Using Anodizing in Concentrated H₃PO₄ Aqueous Solution and Its Osteoconductivity
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Description
Anodizing of Ti specimens were performed in concentrated H3PO4 aqueous solutions with a purpose to incorporate a large amount of phosphate ion into anodized coatings, and their osteoconductivity was evaluated in in vivo test. Ti specimens were anodized in 0.1–11 M H3PO4 aqueous solutions up to 200 V at a rate of 0.1 V s−1. Anodized coatings were evaluated with SEM, TEM, XRD, XPS, and laser microscope. Anodized specimens were implanted in rats’ tibia for 14 d, and then extracted.<BR>When anodized in concentrated (≥2 M) H3PO4 aqueous solutions under spark discharge, crystallized anatase transformed to amorphous anatase by containing a large amount of PO43− in crystal lattice of TiO2. The amorphous anatase coatings had better osteoconductivity than the crystallized anatase coatings. It is not exactly clear what was the intrinsic factor for the high osteoconductivity, but the crystallinity of anatase and/or PO43− in the film is considered to be responsible for the difference in bone-forming ability of TiO2 films.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 53 (3), 508-512, 2012
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390001204251625856
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- NII Article ID
- 130004456379
- 10030259545
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- NII Book ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BC38XmslWktL0%3D
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- ISSN
- 13475320
- 18806880
- 24337501
- 13459678
- 00214876
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- NDL BIB ID
- 023463938
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed