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Development of an artificial bone with enhanced biological properties and its mechanism elucidation

Research Project

Project/Area Number 17K13031
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionTokyo Metropolitan Industrial Technology Research Institute (2018)
Okayama University (2017)

Principal Investigator

KONISHI TOSHIISA  地方独立行政法人東京都立産業技術研究センター, 事業化支援本部技術開発支援部先端材料開発セクター, 研究員 (10587843)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsβ-リン酸三カルシウム / 銅 / ケイ素 / 骨伝導 / 血管形成 / 骨補填材 / リン酸カルシウム / 無機イオン / 結晶構造 / 骨誘導 / 血管新生 / 生体材料 / 生物学的機能
Outline of Final Research Achievements

With the intent to combine osteoconductivity with angiogenic and anti-bacterial properties, the present study aimed to fabricate copper and silicon co-doped β-tricalcium phosphates (CuSi-TCP). The CuSiTCPs were successfully synthesized via a liquid-phase reaction. The effects of copper and silicon on the dissolution behaviors of CuSi-TCP were investigated. The incorporation of copper in the β-TCP resulted in a decrease in the dissolution rate of CuSi-TCP, which was caused by a diffusion-controlled dissolution process due to the formation of a hydrated layer around the CuSi-TCP. The anti-bacteria effect was shown in the CuSi-TCP containing 5 and 10 mol% copper.

Academic Significance and Societal Importance of the Research Achievements

リン酸カルシウム構造中への微量元素の導入は、低コストで再現性に優れることを特長とし、この微量元素がトリガーとなり生体内での機能発現を促進する。そのため、血管内皮細胞増殖因子などの高価な薬剤を使用しなくてもそれと同等な治療効果が期待される。また、微量元素の機能発現はリン酸カルシウムの溶解によって制御されるため、溶解挙動を理解ことが重要である。本研究では、銅を導入したリン酸カルシウムを基にその溶解挙動を明らかにした。また、銅の溶解がその抗菌性発現にも影響することを明らかにした。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 7 results,  Open Access: 1 results)

  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] シンガポール国立大学(シンガポール)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Effect of copper substitution on the local chemical structure and dissolution property of copper-doped β-tricalcium phosphate2019

    • Author(s)
      Konishi Toshiisa、Nagano Yasuyuki、Maegawa Marina、Lim Poon Nian、Thian Eng San
    • Journal Title

      Acta Biomaterialia

      Volume: 印刷中 Pages: 72-81

    • DOI

      10.1016/j.actbio.2019.04.040

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Solid-state nuclear magnetic resonance study of setting mechanism of β-tricalcium phosphate - inositol phosphate composite cements2019

    • Author(s)
      T. Konishi, K. Yamashita, K. Nagata, P.N. Lim, E.S. Thian, M. Aizawa
    • Journal Title

      Journal of Physics: Materials

      Volume: 印刷中 Issue: 3 Pages: 034007-034007

    • DOI

      10.1088/2515-7639/ab17e5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anisotropic coating of a-plane oriented hydroxyapatite via a drop-on-demand micro-dispensing technique2018

    • Author(s)
      Konishi Toshiisa、Lye Yun Min、Qiu Xihe、Lim Poon Nian、Thian Eng San
    • Journal Title

      Materials Technology

      Volume: - Issue: 11-12 Pages: 1-6

    • DOI

      10.1080/10667857.2018.1469261

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhancing osteoconductivity and biocompatibility of silver-substituted apatite in vivo through silicon co-substitution2018

    • Author(s)
      Lim P.N.、Konishi T.、Wang Z.、Feng J.、Wang L.、Han J.、Yang Z.、Thian E.S.
    • Journal Title

      Materials Letters

      Volume: 212 Pages: 90-93

    • DOI

      10.1016/j.matlet.2017.10.076

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bioresorbability of chelate-setting calcium-phosphate cement hybridized with gelatin particles using a porcine tibial defect model2018

    • Author(s)
      KIMINAMI Keishi、NAGATA Kohei、KONISHI Toshiisa、MIZUMOTO Minori、HONDA Michiyo、NAKANO Kazuaki、NAGAYA Masaki、ARIMURA Hidetoshi、NAGASHIMA Hiroshi、AIZAWA Mamoru
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 126 Issue: 2 Pages: 71-78

    • DOI

      10.2109/jcersj2.17197

    • NAID

      130006329683

    • ISSN
      1348-6535, 1882-0743
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of chelate-setting α-tricalcium phosphate cement using sodium citrate and sodium alginate as mixing solution and its in vivo osteoconductivity2017

    • Author(s)
      T. Konishi, PN. Lim, M. Honda, M. Nagaya, H. Nagashima, ES. Thian, M. Aizawa
    • Journal Title

      J. Biomed. Mater. Res. B

      Volume: 17 Issue: 6 Pages: 1-10

    • DOI

      10.1002/jbm.b.34028

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nanomaterial scaffolds to regenerate musculoskeletal tissue: signals from within for neovessel formation2017

    • Author(s)
      Wang Zuyong、Wen Feng、Lim Poon Nian、Zhang Qinyuan、Konishi Toshiisa、Wang Dong、Teoh Swee Hin、Thian Eng San
    • Journal Title

      Drug Discovery Today

      Volume: 22 Issue: 9 Pages: 1385-1391

    • DOI

      10.1016/j.drudis.2017.03.010

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-02-22  

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