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

Development of new metal nanoparticles with inhibition of enzyme activity and antibacterial properties.

Research Project

Project/Area Number 17K11779
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Prosthodontics/ Dental materials science and
Research InstitutionOsaka Dental University

Principal Investigator

Hashimoto Masanori  大阪歯科大学, 医療保健学部, 教授 (00337164)

Co-Investigator(Kenkyū-buntansha) 佐々木 淳一  大阪大学, 歯学研究科, 講師 (50530490)
北川 晴朗  大阪大学, 歯学研究科, 助教 (50736246)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords金属ナノ粒子 / 酵素 / 生体安全性 / 単分散 / シングルスケール / 抗菌性 / 阻害 / 細菌 / 付着 / バイオフィルム / バクテリア / 生物模倣性 / ナノ材料 / ナノバイオ / 歯学
Outline of Final Research Achievements

The main factor in the expression of cytotoxicity of nanoparticles is the effect of metal ions on cells by ionization of core metals. By changing the core metal to a metal with a low ionization tendency, cytotoxicity could be greatly reduced. In addition, coating the core metal with a polymer produces biomimetic functions for enzyme. It was indicated that single metal nanoparticles (a particle size of 10 nm or less) are effective for enhancing the binding property with an enzyme and increasing the inhibitory effect on their activity. Single metal nanoparticles are highly dispersible in water and easily react with enzymes.

Academic Significance and Societal Importance of the Research Achievements

人体に有害な酵素の活性を阻害できるなら新薬への応用の可能性が考えられる。そこで、本研究では、各種酵素活性を阻害する金属ナノ粒子を検索し、同時に抗菌性を有するナノ粒子をデザインする事を目的とする。金属ナノ粒子はコアメタルの周囲にポリマーなどの粒子を被覆する構造を有し、そのため水などには凝集せず分散する性質を有する。基本的には、コアメタルに毒性のないものを使用し、被覆膜に酵素との反応性が高い構造を設計すれば、実験目的が達成されることが示唆された。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effect of Nanoparticles on Biofilm-Growth Disruption: Silver and Platinum Nanoparticles with an Identical Capping Agent2018

    • Author(s)
      9.Hashimoto M, Honda Y.
    • Journal Title

      Nano Biomedicine

      Volume: 10 Issue: 2 Pages: 61-68

    • DOI

      10.11344/nano.10.61

    • NAID

      130007607993

    • ISSN
      1883-5198, 2185-4734
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of metal nanoparticles on biofilm formation of Streptococcus mutans.2017

    • Author(s)
      Hashimoto M, Yanagiuchi H, Kitagawa H, Yamaguchi S, Honda Y, Imazato S.
    • Journal Title

      Nanobiomedicine

      Volume: 9(2) Pages: 61-68

    • NAID

      130006415677

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibitory effect of platinum nanoparticles on biofilm formation of oral bacteria.2017

    • Author(s)
      Hashimoto M, Yanagiuchi H, Kitagawa H, Honda Y.
    • Journal Title

      Nanobiomedicine

      Volume: 9(2) Pages: 77-82

    • NAID

      130006415690

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 金ナノ粒子の粒径と菌体付着および初期バイオフィルム形成阻害の関係2019

    • Author(s)
      橋本正則、本田義知
    • Organizer
      第73回日本歯科理工学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 銀ナノ粒子の粒径がバイオフィルム形成に与える影響2018

    • Author(s)
      橋本正則、本田義知
    • Organizer
      第71回日本歯科理工学会学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 金属ナノ粒子のバイオフィルム形成阻害2017

    • Author(s)
      柳内裕朝、北川晴朗、山口 哲、本田義知、今里 聡、橋本正則
    • Organizer
      日本歯科理工学会・近畿・中四国支部地方会セミナー
    • Related Report
      2017 Research-status Report
  • [Presentation] Effect of metal nanoparticles on inhibition of biofilm formation.2017

    • Author(s)
      Hashimoto M, Kitagawa H, Yamaguchi S, Honda Y, Imazato S.
    • Organizer
      65th Annual Meeting of Japanese Division Meeting 2017/JADR
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi