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Development of noble reaction control technology by using ink-jet droplets

Research Project

Project/Area Number 20H02516
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 27020:Chemical reaction and process system engineering-related
Research InstitutionKyoto University

Principal Investigator

Maki Taisuke  京都大学, 工学研究科, 准教授 (10293987)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywordsinkjet mixing / nano particle / lipid particle / janus particle / phase separation / polymer particle / Janus paricle / nano materials / on demand production / lipid nanoparticle / inkjet reactor / micro reactor / micro mixing
Outline of Research at the Start

マイクロフロー反応器による反応成績の向上をさらに発展させ、液滴の衝突により①『拘束された微小空間利用』、②『不安定物質のオンデマンド生成・活用』、③『反応器の制約からの脱却』を目指してマイクロ液滴を生かした新たな材料創成反応プロセスの開発を目指す。種々の条件で液滴を衝突させ衝突挙動が混合速度に及ぼす影響を明らかにするとともに、衝突後の運動を予測して次の液滴と衝突するシステムや反応条件を迅速に変更するシステム開発を行う。構築した液滴混合モデルと開発したシステムの妥当性をDDSで活用が期待される脂質ナノ粒子の合成反応とナノ粒子合成反応を行って検証する。

Outline of Final Research Achievements

New reaction process using an inkjet system was developed. An inkjet system was able to discharge tiny and uniform-sized droplets, which collided in the air and were used as a droplet reactor. The deformation behavior of the merged droplet had a significant effect on the mixing rate, and the rapid mixing within 1 ms was achieved.
By colliding droplets and achieving rapid mixing, several kinds of metal nanoparticles such as Au and Ag were successfully synthesized with their particle sizes controlled. Polymer-complex nanoparticles were also synthesized under the control of their size and morphology such as homogeneous or Janus particles. Furthermore, the inkjet system was used for developing on-demand lipid nanoparticles synthesis for drug delivery use. The system enabled to synthesize lipid nanoparticles at a lower substrate/lipid volume ratio than previously possible.

Academic Significance and Societal Importance of the Research Achievements

インクジェット技術の発展にともない,2次元のプリント技術を微小化したナノ配線技術,3次元造形,医療分野にもその用途が広がっている。しかし,インクジェット技術を化学合成に利用するという発想はこれまでになく,新規性が高く,学術的意義の大きい取り組みである。本研究ではインクジェット液滴を一つの反応器と見立てて,その混合速度と反応速度を精密に制御できることを示している。また,活性が高いが寿命が短い高機能化学製品をオンデマンドで微量な試薬で無駄なく製造できる技術としてインクジェット技術が十分に利用できることを明らかにしており,社会的意義も非常に大きいといえる。

Report

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

    (9 results)

All 2022 2021

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

  • [Journal Article] Silver Nanoparticle Synthesis Using an Inkjet Mixing System2021

    • Author(s)
      Maki Taisuke、Takeda Saki、Muranaka Yosuke、Mae Kazuhiro
    • Journal Title

      Frontiers in Chemical Engineering

      Volume: 3 Pages: 1-8

    • DOI

      10.3389/fceng.2021.742322

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] インクジェット吐出液滴によるキトサンカプセルの合成2022

    • Author(s)
      西室 柚香子・牧 泰輔・村中 陽介・前 一廣
    • Organizer
      化学工学会第53回秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Chitosan capsule production using an inkjet system2022

    • Author(s)
      Y. Nishimuro, T. Maki, Y. Muranaka, K. Mae
    • Organizer
      The International Microreaction Technology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design and evaluation of distillation devices with microchannels2022

    • Author(s)
      S. Matsumoto, K. Nishigaya, T. Maki, Y. Muranaka, K. Mae
    • Organizer
      The International Microreaction Technology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of particle nucleation and nuclear growth via precise concentration control by fine droplets2022

    • Author(s)
      A. Tsuchida,T. Maki, Y. Muranaka, K. Kazuhiro
    • Organizer
      The International Microreaction Technology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simple Design Concept for Isothermal Operation of Catalytic Reactor2022

    • Author(s)
      H. Tanida, D. Nakayoshi, M. Ota, K. Nishimoto, T. Maki, Y. Muranaka, K. Mae
    • Organizer
      The International Microreaction Technology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 微小液滴を用いた精密濃度制御による微粒子の核生成・成長速度制御2021

    • Author(s)
      土田 茜絵、牧 泰輔、村中 陽介、前 一廣
    • Organizer
      化学工学会第52回秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] インクジェット吐出液滴の衝突混合によるナノ粒子の作製とモルフォロジー制御2021

    • Author(s)
      西室 柚香子、竹田 早希、牧 泰輔、村中 陽介、前 一廣
    • Organizer
      化学工学会第52回秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 化学工学から見たフロー化学2021

    • Author(s)
      牧 泰輔
    • Organizer
      第16回FLOWSTワークショップ
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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