• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study of biocompatible implant TiNbSn alloy

Research Project

Project/Area Number 20H02458
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26040:Structural materials and functional materials-related
Research InstitutionTohoku University

Principal Investigator

Masahashi Naoya  東北大学, 金属材料研究所, 教授 (20312639)

Co-Investigator(Kenkyū-buntansha) 森 優  東北大学, 大学病院, 講師 (70634541)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2020: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords生体材料 / 陽極酸化 / トライボコロージョン特性 / 電気化学 / 二酸化チタン / 密着強度 / 硬度 / 結晶性 / インプラント / 生体親和性 / TiNbSn / 光触媒 / 耐摩耗性 / 抗菌性
Outline of Research at the Start

申請者グループは,細胞毒性の無い元素からなり,低ヤング率と高強度を備えるTiNbSn合金を開発し,人工股関節用ステムへの適用を目指した臨床治験を完了した.本研究は,TiNbSn合金に生体親和性を付加するために骨新生を促進する「骨伝導性」と,手術前の人工関節の重篤な合併症である感染防止の「抗菌性」を付与するため,陽極酸化TiO2をコーティングし,その有意性を実証する.これらの機能の付与には,TiO2の結晶性向上・多孔質化・親水化・バンド構造改質が有効とのモデルを立て,電気化学条件を制御して成膜する.新しいインプラント材料を提供することで,安全なインプラント治療を確立し,学理の解明と深化を目指す.

Outline of Final Research Achievements

In order to suppress the elution of wear particles and metal ions generated from implant materials, a newly developed biomedical TiNbSn alloy was anodized under high voltage application, and its tribocorrosion properties were compared with that of pure Ti in simulated body fluids. Spark discharge did not occur in pure Ti anodization, but occurred due to dielectric breakdown in TiNbSn, and the ctystal structure of the formed oxide of the former and latter was anatase and rutile TiO2, respectively. Regarding tribocorrosion characteristics, the friction coefficient of the latter was similar to the former, but a negative voltage shift of OCP was observed in the former, but not in the latter. It was concluded that the superior functionality of the latter was due to the strongly bonded, high-strength rutile TiO2, which suppressed the generation of wear particles and the elution of metal ions.

Academic Significance and Societal Importance of the Research Achievements

金属系インプラント材料は骨伝導性を有しないために生体適合性に劣るだけでなく、最近需要が激増している人工股関節は異なる材料の集合体であるため、摩擦摩耗により発生する摩耗粉や金属イオンの溶出による疾患が懸念されている。申請者グループはこれらの課題を陽極酸化による表面処理で解決し、安全安心なインプラント治療を提供することに成功した。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020 Other

All Journal Article (10 results) (of which Peer Reviewed: 9 results,  Open Access: 3 results) Presentation (15 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Photoinduced properties of anodized Ti alloys for biomaterial applications2023

    • Author(s)
      Masahashi N.、Hatakeyama M.、Mori Y.、Kurishima H.、Inoue H.、Mokudai T.、Ohmura K.、Aizawa T.、Hanada S.
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 13916-13916

    • DOI

      10.1038/s41598-023-41189-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antimicrobial Properties of TiNbSn Alloys Anodized in a Sulfuric Acid Electrolyte2023

    • Author(s)
      Y. Mori, S. Fujimori, H. Kurishima, H. Inoue, K. Ishii, M. Kubota, K. Kawakami, N. Mori, T. Aizawa, N. Masahashi
    • Journal Title

      Materials

      Volume: 16 Issue: 4 Pages: 1487-1487

    • DOI

      10.3390/ma16041487

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Journal Article] Fretting tribocorrosion properties of anodized TiNbSn implant alloy2023

    • Author(s)
      M. Kubota, N. Masahashi, H. Inoue, Y. Michiyama, K. Ohmura, S. Hanada
    • Journal Title

      Surf. Coat. Technol.

      Volume: 462 Pages: 129492-129492

    • DOI

      10.1016/j.surfcoat.2023.129492

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Review of Anodized TiNbSn Alloys for Improvement in Layer Quality and Application to Orthopedic Implants2022

    • Author(s)
      Y. Mori, N. Masahashi, T. Aizawa
    • Journal Title

      Materials

      Volume: 15 Issue: 15 Pages: 5116-5116

    • DOI

      10.3390/ma15155116

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antibacterial activity of an anodized TiNbSn alloy prepared in sodium tartrate electrolyte2022

    • Author(s)
      H. Kurishima, Y.u Mori, K. Ishii, H. Inoue, T. Mokudai, S. Fujimor, E. Itoi, S. Hanada, N. Masahashi and T. Aizawa
    • Journal Title

      Front. Bioeng.

      Volume: 10 Pages: 883335-883335

    • DOI

      10.3389/fbioe.2022.883335

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] b-type TiNbSn Alloy Plates With Low Young Modulus Accelerates Osteosynthesis in Rabbit Tibiae2022

    • Author(s)
      K. Ito, Y. Mori, M. Kamimura, M. Koguchi, H. Kurishima, T. Koyama, N. Mori, N. Masahashi, S. Hanada, E. Itoi, T. Aizawa
    • Journal Title

      Clinical Orthopaedics and Related Research

      Volume: 480 Issue: 9 Pages: 1817-1832

    • DOI

      10.1097/corr.0000000000002240

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wear resistance of surface-modified TiNbSn alloy2021

    • Author(s)
      M. Hatakeyama, N. Masahashi, Y. Michiyama, H. Inoue, S. Hanada
    • Journal Title

      J. Mater. Sci.

      Volume: 56 Issue: 25 Pages: 14333-14347

    • DOI

      10.1007/s10853-021-06213-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mechanical properties of anodized TiNbSn alloy for biomedical applications2021

    • Author(s)
      M. Hatakeyama, N. Masahashi, Y. Michiyama, H. Inoue, S. Hanada
    • Journal Title

      Mater. Sci. Eng. A

      Volume: 825 Pages: 141898-141898

    • DOI

      10.1016/j.msea.2021.141898

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoactivity of an anodized biocompatible TiNbSn alloy prepared in sodium tartrate / hydrogen peroxide aqueous solution2021

    • Author(s)
      N. Masahashi, Y Mori, H. Kurishima, H. Inoue, T. Mokudai, S. Semboshi, M. Hatakeyama, E. Itoi, S. Hanada
    • Journal Title

      Applied Surface Science

      Volume: 543 Pages: 1488291-11

    • DOI

      10.1016/j.apsusc.2020.148829

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acceleration of Fracture Healing in Mouse Tibiae Using Intramedullary Nails Composed of <i>β</i>-Type TiNbSn Alloy with Low Young’s Modulus2021

    • Author(s)
      Y. Mori, H. Fujisawa, M. Kamimura, A. Kogure, H. Tanaka, N. Mori, N. Masahashi, T. Aizawa
    • Journal Title

      The Tohoku Journal of Experimental Medicine

      Volume: 255 Issue: 2 Pages: 135-142

    • DOI

      10.1620/tjem.255.135

    • NAID

      130008104949

    • ISSN
      0040-8727, 1349-3329
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Effect of low Young's modulus Ti-Nb-Sn alloy locking plate on bone healing2023

    • Author(s)
      M. Koguchi, Y. Mori, K. Ito, T. Koyama, M. Kamimura, N. Masahashi, S. Hanada, T. Aizawa
    • Organizer
      2023 ORS annual meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 陽極酸化Ti合金の光誘起および力学機能におよぼす基板の影響2023

    • Author(s)
      正橋直哉, 久保田真彩, 畠山美樹, 花田修治, 森優, 井上博之
    • Organizer
      日本金属学会 第172回講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] インプラント用陽極酸化TiNbSn合金の光触媒活性2023

    • Author(s)
      久保田真彩, 正橋直哉, 畠山美樹, 花田修治, 井上博之
    • Organizer
      日本金属学会 第172回講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 生体用金属材料-ステンレスとチタンの比較-2023

    • Author(s)
      正橋直哉
    • Organizer
      日本鉄鋼協会・日本金属学会中国四国支部講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 陽極酸化TiNbSn合金の光誘起特性2023

    • Author(s)
      正橋直哉, 久保田真彩, 花田修治, 森優, 井上博之, 目代貴之
    • Organizer
      日本金属学会 第173回講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 陽極酸化処理によるTiNbSn合金の抗菌性能付与と骨親和性改善効果2023

    • Author(s)
      森優, 正橋直哉, 相澤俊峰
    • Organizer
      第42回整形外科バイオマテリアル研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 低ヤング率TiNbSn合金の表面改質によるバイオ機能の付与2023

    • Author(s)
      正橋直哉, 花田修治, 森優, 相澤俊峰
    • Organizer
      第6回日本金属学会第7分野講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 陽極酸化TiNbSn合金の光誘起特性2023

    • Author(s)
      正橋直哉, 久保田真彩, 花田修治, 森優, 栗島宏明, 相澤俊峰, 井上博之, 目代貴之
    • Organizer
      日本金属学会 第174回講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] インプラント用陽極酸化TiNbSn合金の光触媒活性2023

    • Author(s)
      久保田真彩, 正橋直哉, 畠山美樹, 井上博之, 花田修治
    • Organizer
      日本金属学会第172回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 陽極酸化Ti合金の光誘起および力学機能におよぼす基板の影響2023

    • Author(s)
      正橋直哉, 久保田真彩, 畠山美樹,, 森優, 井上博之,花田修治
    • Organizer
      日本金属学会第172回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 生体用金属材料-ステンレスとチタンの比較-2023

    • Author(s)
      正橋直哉
    • Organizer
      日本鉄鋼協会・日本金属学会中国四国支部
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] インプラント用陽極酸化TiNbSn合金のトライボコロージョン特性2022

    • Author(s)
      久保田真彩, 正橋直哉, 畠山美樹, 道山泰宏,井上博之, 花田修治
    • Organizer
      日本金属学会第171回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 陽極酸化TiNbSn合金の光誘起機能2022

    • Author(s)
      正橋直哉, 久保田真彩, 目代貴之, 森優, 栗島宏明, 井上博之,相澤俊峰,花田修治
    • Organizer
      日本金属学会第171回講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 陽極酸化を施したインプラント用TiNbSn合金の機械的性質2022

    • Author(s)
      畠山美樹, 久保田真彩,正橋直哉,道山泰宏, 井上博之, 花田修治
    • Organizer
      日本金属学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The antibacterial activity of anodized biocompatible TiNbSn alloy prepared in sodium tartrate2021

    • Author(s)
      H. Kurishima, Y. Mori, N. Masahashi, K. Ishii, H. Inoue, M. Hatakeyama, S. Hanada, K. Kawakami, E. Itoi
    • Organizer
      Orthopaedic Research Society, 2021 Annual Meeting
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Int'l Joint Research
  • [Remarks] インプラント用Ti合金への骨伝導性の付与

    • URL

      http://www.trc-center.imr.tohoku.ac.jp/52.pdf

    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 生体用チタン合金及びその製造方法2020

    • Inventor(s)
      正橋直哉、花田修治、森優、井樋栄二、目代貴之、井上博之
    • Industrial Property Rights Holder
      正橋直哉、花田修治、森優、井樋栄二、目代貴之、井上博之
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi