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Mechanical folding of nano-rigid origami at a two-dimensional interface

Research Project

Project/Area Number 22K19824
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 62:Applied informatics and related fields
Research InstitutionTokyo Medical and Dental University (2023)
Tokyo Institute of Technology (2022)

Principal Investigator

Ishikawa Daisuke  東京医科歯科大学, 生体材料工学研究所, 講師 (00722919)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
KeywordsDNAナノテクノロジー / 界面膜 / 機械受容チャネル / 折り紙
Outline of Research at the Start

本研究は、DNAナノテクノロジーを駆使してナノサイズの剛体折り紙で人工機械受容チャネルを開発し、界面膜の圧縮・拡張によって駆動する機械受容チャネルの開閉挙動と、界面膜の力学的特性との相関解明を目的とする。具体的には、機械受容剛体折り紙ナノチャネルの開発および気水界面膜中における剛体折り紙チャネルの力学的変形の確認、そして界面膜の力学的特性(表面圧、印加エネルギー、膜の硬さ変化)と剛体折り紙チャネルの力学的変形との相関解明を試みる。

Outline of Final Research Achievements

In this study, mechanically deformable nanochannels based on the folding mechanism of rigid origami were developed using the DNA origami method of structural DNA nanotechnology to artificially construct mechanosensitive channels that sense mechanical stimuli in cells. Compression of Langmuir monolayers fabricated at the air-water interface with amphiphilized nanochannels and lipid molecules showed that the nanochannels in the membrane were mechanically deformed. Relatedly, DNA hydrogel particles with catalytic functions were also developed as artificial cell components.

Academic Significance and Societal Importance of the Research Achievements

a細胞は、多種多様な力学的刺激を識別して応答する細胞力覚という機能を有している。力学的刺激は、細胞自体の機械特性、細胞外基質の硬さや組成などを介して、細胞の成長や増殖、死を調節しており、過剰な力学的刺激による細胞の損傷は疾患や病態を引き起こす原因となる。特に、細胞力覚発現の出発点となる力の感知を担う機械受容チャネルの駆動とその周囲の細胞膜の力学的特性との相関を、人工的に再現した系を用いて解明することは、生体に関する学術的探究のみならず、理学療法や創薬、再生医療などに対し物理的根拠に基づいた知見や技術を提供し得る重要な社会的意義を有している。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 Other

All Journal Article (1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (4 results)

  • [Journal Article] DNAオリガミって何?2023

    • Author(s)
      石川大輔,瀧ノ上正浩
    • Journal Title

      現代化学

      Volume: No. 6 Pages: 17-21

    • Related Report
      2023 Annual Research Report
  • [Presentation] Materials creation using structural DNA nanotechnology2024

    • Author(s)
      Daisuke Ishikawa
    • Organizer
      The 10th Joint Symposium between IBB/TMDU and Chulalongkorn Univ ersity on "Biomedical Ma terials and Engineering"
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Soft Mechanochemistry Based on Interfacial Anisotropy2023

    • Author(s)
      Daisuke Ishikawa
    • Organizer
      8th Annual Conference of AnalytiX-2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Artificial cell microcapsules stabilized by assembly of amphiphilic DNA nanoplates with ion channel function2023

    • Author(s)
      Daisuke Ishikawa
    • Organizer
      Materials Research Meeting 2023 (MRM2023)/International Union of Materials Research Societies-International Conference in Asia (IUMRS-ICA2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 両親媒化DNAナノプレートの油水界面自己集積によるカプセル形成とチャネル機能発現2023

    • Author(s)
      石川大輔
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 小胞間シグナル伝達のための動的チャネル開発2022

    • Author(s)
      石川大輔
    • Organizer
      学術変革領域研究(A)分子サイバネティクス公募班進捗報告会
    • Related Report
      2022 Research-status Report
  • [Presentation] DNAナノテクノロジーを駆使した人工細胞構成素子の開発2022

    • Author(s)
      石川大輔
    • Organizer
      学術変革領域研究(A)分子サイバネティクス 第2回領域会議
    • Related Report
      2022 Research-status Report
  • [Presentation] Abiotic synthesis and catalytic activity of iron-sulfur clusters2022

    • Author(s)
      Daisuke Ishikawa
    • Organizer
      International Congress on Pure & Applied Chemistry (ICPAC) Kotakinabalu 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 東京医科歯科大学生体材料工学研究所精密医工学分野ホームページ

    • URL

      https://sites.google.com/view/ikeuchi-lab/home

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/ishi-d

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Remarks] ResearcherID

    • URL

      http://www.researcherid.com/rid/I-5303-2015

    • Related Report
      2022 Research-status Report
  • [Remarks] google scholar

    • URL

      https://scholar.google.co.jp/citations?user=BV_C_T0AAAAJ&hl=ja&oi=ao

    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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