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

Interfacial adhesion and deadhesion by velcro-like entanglement controls of grafted polymer chains under biological environment

Research Project

Project/Area Number 16K12893
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionTokyo Medical and Dental University

Principal Investigator

YUI Nobuhiko  東京医科歯科大学, 生体材料工学研究所, 教授 (70182665)

Co-Investigator(Kenkyū-buntansha) 堤 祐介  東京医科歯科大学, 生体材料工学研究所, 准教授 (60447498)
有坂 慶紀  東京医科歯科大学, 生体材料工学研究所, 助教 (70590115)
田村 篤志  東京医科歯科大学, 生体材料工学研究所, 准教授 (80631150)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsベルクロ様絡み合い / ポリエチレングリコール / 接着
Outline of Final Research Achievements

In this study, we investigated the effect of grafted densities of polymer chains on the unique entanglement phenomenon between singly grafted and looped poly(ethylene glycol) on titanium surfaces. The densities were adjusted by the concentration of polyethylene glycol in the electrodeposition solution. Dynamic friction characteristics were analyzed using singly grafted and looped surfaces with different densities of grafted polymers, and the entanglement phenomenon was observed for the combination of singly grafted and looped surfaces fabricated with 0.1 wt% polyethylene glycol solution. This result suggests that the entanglement was enhanced by the optimum density of grafted polyethylene glycol.

Academic Significance and Societal Importance of the Research Achievements

高分子鎖のベルクロ様絡み合いは、生体環境下での医療用具どうしの接着・脱着だけでなく、生体内の反応に応じて生体組織との接着・脱着を制御することにもつながる。体内に埋植した医療デバイスの組織への固定、治癒過程における癒着防止など生体内での接着可逆性の獲得は潜在的にニーズが高いため、波及効果は非常に高いと言える。本研究の成果は、これまで不可能であった生体環境下での高分子鎖固定化表面どうしの安定な接着と容易な剥離を可能にする基盤技術であり、生体材料学分野における新たな接着制御法として広範囲の応用展開が期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2018 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] Versatile synthesis of end-reactive polyrotaxanes applicable to fabrication of supramolecular biomaterials2016

    • Author(s)
      Atsushi Tamura, Asato Tonegawa, Yoshinori Arisaka, Nobuhiko Yui
    • Journal Title

      Beilstein Journal of Organic Chemistry

      Volume: 12 Pages: 2883-2892

    • DOI

      10.3762/bjoc.12.287

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Immobilization of ethylated polyrotaxanes with amino groups at both terminals onto titanium surfaces using an electrodeposition method2018

    • Author(s)
      Yoshinori Arisaka, Atsushi Tamura, Yusuke Tsutsumi, Takao Hanawa, Nobuhiko Yui
    • Organizer
      3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-3)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Immobilization of polyrotaxanes onto Ti for modulating cell function2017

    • Author(s)
      Yoshinori Arisaka, Atsushi Tamura, Yusuke Tsutsumi, Takao Hanawa, Nobuhiko Yui
    • Organizer
      2nd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-2)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細胞機能制御を指向した分子可動性ポリロタキサン表面の構築2016

    • Author(s)
      有坂慶紀, 徐 知勲, 田村篤志, 柿木佐知朗, 山岡哲二, 由井伸彦
    • Organizer
      日本バイオマテリアル学会 シンポジウム2016
    • Place of Presentation
      福岡国際会議場(福岡・福岡)
    • Year and Date
      2016-11-21
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 動的作用点を有する荷電性ポリロタキサンLayer-by-Layer薄膜の作製2016

    • Author(s)
      山川 大智,田村 篤志,由井 伸彦
    • Organizer
      第6回CSJ化学フェスタ2016
    • Place of Presentation
      タワーホール船堀(東京・江戸川)
    • Year and Date
      2016-11-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 動的なネットワーク構造を有する細胞培養基材の構築を目指した末端架橋型ポリロタキサンゲルの調製2016

    • Author(s)
      利根川 朝人,有坂 慶紀,田村 篤志,由井 伸彦
    • Organizer
      第6回CSJ化学フェスタ2016
    • Place of Presentation
      タワーホール船堀(東京・江戸川)
    • Year and Date
      2016-11-14
    • Related Report
      2016 Research-status Report
  • [Presentation] Supramolecularly movable polyrotaxane surfaces directing stem cell differentiation2016

    • Author(s)
      Nobuhiko Yui, Ji-Hum Seo, Tetsuji Yamaoka, Sachiro Kakinoki, Mitsuhi Hirata
    • Organizer
      The 11th International Conference on Medical Applications of Novel Biomaterials and Nanotechnology
    • Place of Presentation
      Perugia, Italy
    • Year and Date
      2016-06-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 成長因子活性を亢進する硫酸化ポリロタキサンを基本骨格とした移植用ゲルの調製と機能評価2016

    • Author(s)
      稲田 大佳輔,寺内 正彦,利根川 朝人,田村 篤志,山口 聰,由井 伸彦
    • Organizer
      第65回高分子学会年次大会
    • Place of Presentation
      神戸国際会議場(兵庫・神戸)
    • Year and Date
      2016-05-25
    • Related Report
      2016 Research-status Report
  • [Presentation] 生体機能調節を目指したポリロタキサンの細胞内外からのアプローチ2016

    • Author(s)
      由井 伸彦
    • Organizer
      ポリマーフロンティア21 医療を支える機能性高分子材料の研究最前線
    • Place of Presentation
      東京工業大学蔵前会館(東京・目黒)
    • Year and Date
      2016-04-21
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi