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Fundamental research on cross-slit type microfluidic emulsification process technology

Research Project

Project/Area Number 20H02512
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 InstitutionTokyo Institute of Technology

Principal Investigator

Nisisako Takasi  東京工業大学, 科学技術創成研究院, 准教授 (10431983)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywordsマイクロナノシステム / マイクロフルイディクス / エマルション / 液滴 / マイクロプロセス
Outline of Research at the Start

マイクロ流路の分岐構造を用いた液滴生成(乳化)法は,様々な新奇機能性材料を研究室にて創出してきた.しかし単一流路の極めて低い生産性と,既存の集積化マイクロ流路の複雑さ・取扱い辛さのため,本手法は生産技術として幅広く利用されるには到っていない.
そこで本研究では,研究代表者が近年考案した,マイクロ流路アレイとスリット状流路の組合せによる,クロススリット型マイクロ乳化技術の基盤研究を実施する.3次元流体解析,微細加工,液滴・粒子生成試験,を連携して実施することで,上記クロススリット構造における液滴生成機構を解明し,本プロセスを単分散液滴および粒子の生産技術として展開するための研究基盤を確立する.

Outline of Final Research Achievements

In this study, we conducted fundamental research on a device and method to easily scale up droplet production using a simple cross-slit structure combining a microchannel array and slit-shaped channels. By combining three-dimensional fluid analysis, microfabrication, and droplet and particle generation tests, we elucidated the droplet generation mechanism in the cross-slit structure and aimed to establish a research foundation for developing this process as a production technology for monodisperse droplets and particles.

Academic Significance and Societal Importance of the Research Achievements

乳化操作は化粧品,医薬品,農薬,食品など,幅広い産業分野において普遍的に用いられており,粒径の任意制御は長年にわたる究極的な目標とされてきた.したがって,本研究の成果をさらに発展させることで,既存の液滴・粒子製品の単分散性向上を望むこれらの分野の研究開発現場に幅広くイノベーションをもたらす一方で,これまで研究室に留まっていたマイクロ流路由来の高付加価値な新奇材料が広く社会に普及することにもつながると期待される.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 2020

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Microfluidic Step Emulsification with Parallel Nozzles on a Vertical Slit2024

    • Author(s)
      Chunqi Zheng, Shuzo Masui, Yusuke Kanno, Takasi Nisisako
    • Journal Title

      Industrial & Engineering Chemistry Research

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] マイクロ流路を利用した乳化技術とスケールアップ2023

    • Author(s)
      西迫貴志
    • Journal Title

      化学工学

      Volume: 87 Pages: 211-214

    • Related Report
      2023 Annual Research Report
  • [Presentation] スリット型液滴量産デバイスにおける液滴の微細化検討2024

    • Author(s)
      西山昌孝, ZHENG Chunqi, 菅野佑介, 西迫貴志
    • Organizer
      2024年度精密工学会春季大会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A microfluidic step-emulsification device with nozzles arrayed on a slit2023

    • Author(s)
      Chunqi Zheng, Shuzo Masui, Yusuke Kanno, Takasi Nisisako
    • Organizer
      The 10th International Conference of Asian Society for Precision Engineering and Nanotechnology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microfluidic step emulsification via paralleled generators on slits2023

    • Author(s)
      Chunqi Zheng, Guangchong Ji, Shuzo Masui, Yusuke Kanno, Takasi Nisisako
    • Organizer
      化学とマイクロ・ナノシステム学会第47回研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Microfluidic step emulsification via parallel nozzles crossing a slit2023

    • Author(s)
      Chunqi Zheng, Guangchong Ji, Shuzo Masui, Yusuke Kanno,and Takasi Nisisako
    • Organizer
      2023年度精密工学会春季大会学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Parallel Synthesis of Cell-Laden Calcium-Alginate Microspheres in Microfluidic Droplet Generators on Slits2022

    • Author(s)
      Yingzhe Liu, Takasi Nisisako
    • Organizer
      26th International Conference on Miniaturized Systems for Chemistry and Life Sciences
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Paralleled microfluidic droplet generators on slits for mass-producing calcium-alginate microparticles2022

    • Author(s)
      劉英哲,西迫貴志
    • Organizer
      2022年度精密工学会春季大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] クロススリット型液滴生成デバイスの3次元流路構造の検討2022

    • Author(s)
      古山侑,菅野佑介,西迫貴志
    • Organizer
      2022年度精密工学会春季大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スリット型液滴生成デバイスにおける3次元流体シミュレーション2021

    • Author(s)
      印藤健輔,西迫貴志
    • Organizer
      化学とマイクロナノシステム学会第44回研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スリット型液滴量産デバイスにおける数値流体シミュレーション2021

    • Author(s)
      印藤健輔,西迫貴志
    • Organizer
      2021年度精密工学会秋季大会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Parallel generation of biphasic droplets in microfluidic channels arrayed on slits2020

    • Author(s)
      Siyuan Xu, Takasi Nisisako
    • Organizer
      The 18th International Conference on Precision Engineering (ICPE2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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