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Development of corrosion protection coatings of biomedical Mg alloys showing cell adhesion changing with time

Research Project

Project/Area Number 19H02449
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 26030:Composite materials and interfaces-related
Research InstitutionNational Institute for Materials Science

Principal Investigator

HIROMOTO Sachiko  国立研究開発法人物質・材料研究機構, 構造材料研究拠点, グループリーダー (00343880)

Co-Investigator(Kenkyū-buntansha) 山崎 智彦  国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (50419264)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywordsマグネシウム / 水酸アパタイト被膜 / ポリマー / 自己修復 / 耐傷性 / 生体材料 / アパタイト被膜 / アパタイト被覆 / 非イオン性ポリマー / アニオン性ポリマー / 腐食 / 細胞適合性 / 浸漬試験
Outline of Research at the Start

血管拡張用ステント用の生体内溶解性Mg合金のため、ステント拡張による被膜損傷に対する自己修復能を有し、細胞接着性を制御する被膜の創出を目標とする。ステントの被膜には、被膜損傷を迅速に修復する自己修復能が望まれる。表面には、初期には血小板の接着抑制、その後には血管内皮細胞の接着促進が求められる。本研究では、リン酸カルシウム析出の核となり、細胞接着を抑制するポリマーを水酸アパタイト(HAp)被覆Mg合金に弱い結合で修飾する。初期にはポリマーにより血小板接着が抑制され、被膜に生じた欠陥はリン酸カルシウム析出で修復される。時間経過に伴いリン酸カルシウムが析出し、細胞接着表面に変化することが期待される。

Outline of Final Research Achievements

The aim of this study was to develop polymer-modified hydroxyapatite (HAp) coatings that prevent corrosion from surface damage caused by deformation and wear during surgical implantation of Mg alloy stents and plates & screws. Rapid strain electrode tests, electrochemical indentation tests and cell culture tests were performed on HAp-coated AZ31 alloys modified with neutral and anionic polymers. Polyethylene glycol and polyvinyl alcohol were used as neutral polymers and polyacrylate and sodium alginate as anionic polymers. For damage resistance and coating repair of HAp coatings, the anionic polymers were more effective than the neutral polymers in reducing HAp coating damage and repairing the coating, but the anionic polymers were found to have biocompatibility issues. The neutral polymers were found to be effective for biocompatibility and damage resistance and self-healing properties of HAp coatings.

Academic Significance and Societal Importance of the Research Achievements

生体用Mg合金の実用化には、腐食制御および生体適合性向上のための表面被覆が不可欠である。一方、埋入手術時に手術器具や材料変形による表面損傷は避けられない。基材Mg合金よりも脆性なセラミックス被膜の一種である水酸アパタイト被膜において、ポリエチレングリコールのような親水性ポリマー修飾により被膜の損傷き裂からの腐食抑制が可能であることを示した本研究成果は、様々なポリマーとセラミックスの複合被膜へ応用できる。構造材料としてのMg合金も耐食被膜は不可欠であることから、ポリマー複合化によりセラミックス被膜の耐傷性向上が可能であることを示した本成果は、表面被覆Mg合金の材料信頼性向上に貢献するものである。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (23 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Remarks (3 results)

  • [Journal Article] Effect of polyethylene glycol modification on the corrosion behavior of hydroxyapatite-coated AZ31 Mg alloy under tensile deformation2023

    • Author(s)
      S. Hiromoto, K. Doi
    • Journal Title

      Corrosion Science

      Volume: 212 Pages: 110931-110931

    • DOI

      10.1016/j.corsci.2022.110931

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 使用環境に応じた耐食性制御のためのMg合金の表面被覆 -生体材料から構造材料-2022

    • Author(s)
      廣本 祥子
    • Journal Title

      金属

      Volume: 92 Pages: 26-36

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Formation and corrosion behavior of calcium phosphate coating layers on ZK60 alloy coated at various pH conditions by chemical conversion method2022

    • Author(s)
      Trang Le Thi、Quang Cao Nguyen、Hiromoto Sachiko、O Minho、Kobayashi Equo
    • Journal Title

      Surface and Coatings Technology

      Volume: 444 Pages: 128639-128639

    • DOI

      10.1016/j.surfcoat.2022.128639

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Short- and long-term corrosion behavior of carbonate apatite-coated Mg-4mass% Y-3mass% RE alloy in cell culture medium2022

    • Author(s)
      Hiromoto Sachiko、Itoh Sayaka、Doi Kotaro、Katayama Hideki、Akashi Takaya
    • Journal Title

      Corrosion Science

      Volume: 200 Pages: 110222-110222

    • DOI

      10.1016/j.corsci.2022.110222

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Addition of Citric Acid to Hydroxyapatite Slurry for Stable Dispersion of Nanoparticles2020

    • Author(s)
      KAWAGOE Daisuke、SUZUKI Tatsuya、NAMAI Reiya、TSUBOI Yuma、HIROMOTO Sachiko
    • Journal Title

      Transactions of the Materials Research Society of Japan

      Volume: 45 Issue: 3 Pages: 73-76

    • DOI

      10.14723/tmrsj.45.73

    • NAID

      130007869027

    • ISSN
      1382-3469, 2188-1650
    • Year and Date
      2020-06-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Osteoclast and osteoblast responsive carbonate apatite coatings for biodegradable magnesium alloys2020

    • Author(s)
      Hiromoto Sachiko、Itoh Sayaka、Noda Naomi、Yamazaki Tomohiko、Katayama Hideki、Akashi Takaya
    • Journal Title

      Science and Technology of Advanced Materials

      Volume: 21 Issue: 1 Pages: 346-358

    • DOI

      10.1080/14686996.2020.1761237

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of pH of Coating Solution on Adhesion Strength of Hydroxyapatite and Octacalcium Phosphate Coatings on AZ31 Magnesium Alloy2020

    • Author(s)
      Tuyet Thi Anh Ngo、Hiromoto Sachiko、Nguyen Phong Ngoc、San Thi Pham
    • Journal Title

      Materials Science Forum

      Volume: 985 Pages: 156-164

    • DOI

      10.4028/www.scientific.net/msf.985.156

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Adhesion properties of hydroxyapatite and octacalcium phosphate coating layers to AZ31 alloy formed at various pH values2020

    • Author(s)
      Ngo Tuyet T.A.、Hiromoto Sachiko、Pham San T.、Cao Nguyen Q.
    • Journal Title

      Surface and Coatings Technology

      Volume: 381 Pages: 125187-125187

    • DOI

      10.1016/j.surfcoat.2019.125187

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In Vitro Corrosion and Cell Response of Hydroxyapatite Coated Mg Matrix in Situ Composites for Biodegradable Material Applications2019

    • Author(s)
      Cao、Le、Pham、Nguyen、Hiromoto、Kobayashi
    • Journal Title

      Materials

      Volume: 12 Issue: 21 Pages: 3474-3474

    • DOI

      10.3390/ma12213474

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Slow Strain Rate Tensile Test of a Magnesium Alloy with Polymer-Hydroxyapatite Composite Coatings in Hanks’ Simulated Body Fluid.2022

    • Author(s)
      S. Hiromoto
    • Organizer
      Summit of Materials Science 2022 and Global Institute for Materials Research Tohoku User Meeting 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 生体内溶解性Mg合金の腐食溶解速度制御ためのアパタイト被膜の開発2021

    • Author(s)
      廣本祥子
    • Organizer
      地プロ「医療・介護機器分野参入促進事業」 令和3年度講演会 令和3年度講演会「一緒に考えませんか、医療機器の産業化~近未来・中期・長期~」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Bioabsorbable Carbonate Apatite Coating for Biodegradable Mg Implants and Osteoclast Response2020

    • Author(s)
      S. Hiromoto, S. Itoh, N. Noda, T. Yamazaki, H. Katayama, T. Akashi
    • Organizer
      11th World Biomaterials Congress, WBC2020 Virtual. 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Calcium Phosphate Coating of Mg/Mg alloys for Biomedical Use2020

    • Author(s)
      S. Hiromoto
    • Organizer
      The 3rd Symposium on International Joint Graduate Program in Materials Science
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Osteoclast responsive carbonate apatite coatings of WE43 alloy toward entirely-bioabsorbable and corrosion-controlled Mg alloys2020

    • Author(s)
      S. Hiromoto, S. Itoh, N. Noda, T. Yamazaki, H. Katayama, T. Akashi
    • Organizer
      12th Biometal Virtual Workshop. 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] クエン酸添加アパタイトスラリーの超音波処理の検討2020

    • Author(s)
      黒崎 遥太, 藤生 理, 川越 大輔, 廣本 祥子
    • Organizer
      第30回 日本MRS年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 生体用Mg合金のための炭酸アパタイト被膜の開発と長期耐食性評価2019

    • Author(s)
      廣本 祥子, 伊藤 清佳, 片山 英樹, 明石 孝也
    • Organizer
      第41回日本バイオマテリアル学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Influence of Zinc Content and Heat Treatment on Microstructures and Corrosion Behavior of Mg-Zn Alloys2019

    • Author(s)
      D.N. Pham, S. Hiromoto, E. Kobayashi
    • Organizer
      The 3rd International Conference on Light Materials -Science and Technology (LightMAT 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ポリマー修飾が水酸アパタイト被覆AZ31合金の疑似体液中でのき裂修復挙動に及ぼす影響の検討2019

    • Author(s)
      廣本 祥子, ドローネ ヴァンサン, 土井 康太郎
    • Organizer
      第66回材料と環境討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] In vivo degradation behavior of hydroxyapatite-coated magnesium alloys for bone implant application2019

    • Author(s)
      S. Hiromoto, E. Nozoe, K. Hanada
    • Organizer
      PRICM 10
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Apatite coating of biodegradable magnesium alloys and their corrosion behavior and biocompatibility2019

    • Author(s)
      S. Hiromoto
    • Organizer
      台湾 国立精華大学 セミナー
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Remarks]

    • URL

      https://samurai.nims.go.jp/profiles/hiromoto_sachiko

    • Related Report
      2021 Annual Research Report
  • [Remarks]

    • URL

      https://samurai.nims.go.jp/profiles/hiromoto_sachiko

    • Related Report
      2020 Annual Research Report
  • [Remarks]

    • URL

      https://samurai.nims.go.jp/profiles/hiromoto_sachiko

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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