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Mitochondrial ATP synthesis controlled by pH modulator

Research Project

Project/Area Number 17K19041
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Nano/Micro science and related fields
Research InstitutionWaseda University

Principal Investigator

Miyake Takeo  早稲田大学, 理工学術院(情報生産システム研究科・センター), 准教授 (50551529)

Co-Investigator(Kenkyū-buntansha) 太田 善浩  東京農工大学, 工学(系)研究科(研究院), 准教授 (10223843)
Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords電気化学式バイオトランスデューサ / pH制御 / ミトコンドリア / ATP合成 / 電子・イオン制御 / プロトン輸送 / バイオプロトニクス / 導電性高分子 / pH制御 / 櫛型電極 / バイオトランスデューサ / 電気化学
Outline of Final Research Achievements

In nature, protons (H+) play an important role in biological activities such as in mitochondrial ATP synthesis, which is driven by a H+ gradient across the inner membrane, or in the activation of acid sensing ion channels in neuron cells. Bioprotonic devices directly interface with the H+ concentration (pH) to facilitate engineered interactions with these biochemical processes. Here we develop a H+ biotransducer that changes the pH in a mitochondrial matrix by controlling the flow of H+ between a conductive polymer of sulfonated polyaniline and solution. We have successfully modulated the rate of ATP synthesis in mitochondria by altering the solution pH. Our H+ biotransducer provides a new way to monitor and modulate pH dependent biological functions at the interface between the electronic devices and biological materials.

Academic Significance and Societal Importance of the Research Achievements

ヒトなどの生体素材は、柔らかく、化学物質で機能するのに対し、ヒトが作るデバイスは、硬く、電子輸送で機能する。「この相反する素材を如何にして統合するか?」は、近年のウェアラブルデバイス開発市場と相俟って、世界中で関心が高い研究テーマである。申請者は、この課題にいち早く気付き、電気信号を溶液中の水素イオン濃度(pH)信号に変換する革新的デバイスの開発に加え、本デバイスを生体(ミトコンドリア)が既に持つイオン機構と連結されることで、ミトコンドリア内機能(ATP合成)を世界で始めて制御することに成功した。

Report

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

    (11 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results)

  • [Journal Article] A protonic biotransducer controlling mitochondrial ATP synthesis2018

    • Author(s)
      Z. Zhang, H. Kashiwagi, S. Kimura, S. Kong, Y.Ohta, T. Miyake
    • Journal Title

      Scientific reports

      Volume: 8 Issue: 1 Pages: 10423-10423

    • DOI

      10.1038/s41598-018-28435-5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 体表イオントロニクスへの挑戦2019

    • Author(s)
      三宅丈雄
    • Organizer
      日本機械学会機素潤滑設計部門 第7回ヒューマン・マシン・インターフェイス設計研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 生体素材とイオンでつながるバイオトランスデューサの開発2018

    • Author(s)
      三宅丈雄
    • Organizer
      第28回日本MRS年次大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Mitochondrial ATP Synthesis Controlled by Protonic Biotransducer2018

    • Author(s)
      Takeo Miyake
    • Organizer
      2018 MRS fall meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Biotransducer for interactive communication with biology2018

    • Author(s)
      Takeo Miyake
    • Organizer
      Hubei University of Chinese Medicine
    • Related Report
      2018 Annual Research Report
  • [Presentation] A protonic biotransducer controlling mitochondrial ATP synthesis2018

    • Author(s)
      Takeo Miyake
    • Organizer
      Biosensors 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A protonic biotrasducer controlling mitochondrial ATP synthesis2018

    • Author(s)
      Ziyi Zhang, Shuyi Kong, Yoshihiro Ohta, Takeo Miyake
    • Organizer
      応用物理学会第65会春季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 革新的バイオイオントロニクスの開発2017

    • Author(s)
      三宅丈雄
    • Organizer
      応用物理学会有機分子・バイオエレクトロニクス分科会研究会,「有機分子・バイオエレクトロニクスの最新動向と応用展開」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 生体に調和する生体に調和するバイオ発電デバイスの開発と今後の展開2017

    • Author(s)
      三宅丈雄
    • Organizer
      シーエムシー出版主催セミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 酵素/カーボンナノ電極を用いたバイオ発電デバイスと&生体応用2017

    • Author(s)
      三宅丈雄
    • Organizer
      応用物理学会第78会秋季大会フレキシブル環境発電デバイスの新展開
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Bioprotonic transducer controlling mitochondrial ATP synthesis2017

    • Author(s)
      Ziyi Zhang, Kong Shuyi, Takeo Miyake
    • Organizer
      Asilomar Bioelectronics Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-07-21   Modified: 2020-03-30  

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