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On-chip reaction and processing process for precise preparation of functionalized cell-laden microgel particles

Research Project

Project/Area Number 22K14547
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 27040:Biofunction and bioprocess engineering-related
Research InstitutionKyushu University

Principal Investigator

Naotomo Tottori  九州大学, 工学研究院, 助教 (00840646)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsマイクロ流体デバイス / ゲル粒子 / 反応・処理プロセス / マイクロ・ナノ流体デバイス / マイクロプロセス / 細胞内包液滴 / 細胞包埋ゲル粒子 / ゲル微粒子 / 微小液滴
Outline of Research at the Start

本研究では,レイノルズ数が低く環境制御が容易なマイクロ流路内に,各種反応・処理液からなる多相並行流を形成し,規則的な支柱配列を用いて液滴や粒子を斜行・横断させることで,細胞包埋ゲル粒子の作製・ゲル粒子への機能性付与処理・所望の分離プロセスをシームレスに行う,新たな“機能性細胞包埋ゲル粒子”の作製法を確立する.

Outline of Final Research Achievements

In this study, we propose a novel microfluidic technique for the continuous production of functionalized microgel particles containing a uniform number of cells by guiding target cell-encapsulated droplets across multiple laminar streams (e.g., reaction and processing solutions) formed in micropillar arrays. Using the constructed microfluidic system, we demonstrated the continuous production of cell-laden microgels without empty droplets by guiding only the cell-encapsulated droplets across the multiple laminar streams.

Academic Significance and Societal Importance of the Research Achievements

細胞包埋ゲル粒子を用いた細胞の解析は,基礎研究や再生医療用途など様々な分野への応用が近年注目されているが,細胞周囲の微小空間が精密に制御され,さらには環境応答性等の機能が付与された,機能性細胞包埋ゲル粒子の作製プロセス技術は未確立である.対して,機能性細胞包埋ゲル粒子をシームレスに精密調製可能なプロセス技術の確立を目指す本研究は,医学・生化学などの基礎研究,再生医療への応用など,新しい分野の開拓・発展を支える基盤技術になり得ると考えられる.

Report

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

    (12 results)

All 2024 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Tunable deterministic lateral displacement of particles flowing through thermo-responsive hydrogel micropillar arrays2023

    • Author(s)
      Naotomo Tottori, and Takasi Nisisako
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 4994-4994

    • DOI

      10.1038/s41598-023-32233-z

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Tunable particle separation through acoustic deterministic lateral displacement micropillar arrays2024

    • Author(s)
      Hiroki Fukunaga, Naotomo Tottori, Shinya Sakuma, Takeshi Hayakawa, and Yoko Yamanishi
    • Organizer
      The 37th IEEE Int. Conf. on Micro Electro Mechanical Systems (IEEE MEMS 2024)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On-chip high-speed and continuous electro cell fusion utilizing droplet microfluidics2023

    • Author(s)
      Hiroki Fukunaga, Naotomo Tottori, Shinya Sakuma, Tomomi Tsubouchi, and Yoko Yamanishi
    • Organizer
      The 34th 2023 International Symposium on Micro-NanoMechatronics and Human Science (MHS 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Virtual particle valve toward generation of double-cells encapsulated microdroplet2023

    • Author(s)
      Yuma Kadomura, Naotomo Tottori, Shinya Sakuma, and Yoko Yamanishi
    • Organizer
      The 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Continuous production of cell-encapsulated droplets for membrane fusion of cells utilizing a microfluidic device2023

    • Author(s)
      Hiroki Fukunaga, Naotomo Tottori, Shinya Sakuma, Tomomi Tsubouchi, and Yoko Yamanishi
    • Organizer
      The 22nd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers 2023)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 支柱配列流路を介した単一細胞封入ゲル粒子生成2023

    • Author(s)
      福永 裕輝,鳥取 直友,佐久間 臣耶,山西 陽子
    • Organizer
      化学とマイクロ・ナノシステム学会 第48回研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] オンチップ仮想粒子バルブによる液滴への粒子封入挙動の評価2023

    • Author(s)
      角村 勇真,鳥取 直友,佐久間 臣耶,山西 陽子
    • Organizer
      化学とマイクロ・ナノシステム学会 第48回研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 2細胞封入液滴の生成に向けた仮想粒子バルブの提案2023

    • Author(s)
      角村 勇真,鳥取 直友,佐久間 臣耶,山西 陽子
    • Organizer
      日本機械学会 ロボティクス・メカトロニクス講演会 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 融合細胞の作製に向けた2細胞封入液滴へのオンチップ電圧印可2023

    • Author(s)
      福永 裕輝,鳥取 直友,佐久間 臣耶,坪内 知美,山西 陽子
    • Organizer
      日本機械学会 ロボティクス・メカトロニクス講演会 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Continuous generation of fused cells in microdroplets utilizing a droplet microfluidic system2022

    • Author(s)
      Naotomo Tottori, Sora Sadamichi, Shinya Sakuma, Tomomi Tsubouchi, and Yoko Yamanishi
    • Organizer
      The 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 融合細胞の高効率回収を目指したマイクロピラーアレイによる細胞内包液滴の連続分離2022

    • Author(s)
      鳥取 直友,定道 空,佐久間 臣耶,坪内 知美,山西 陽子
    • Organizer
      日本機械学会 第34回バイオエンジニアリング講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] マイクロ流体デバイスを用いた細胞内包液滴への電圧印加による細胞融合2022

    • Author(s)
      定道 空,鳥取 直友,佐久間 臣耶,坪内 知美,山西 陽子
    • Organizer
      化学とマイクロ・ナノシステム学会第45回研究会
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2025-01-30  

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