High speed fabrication of soft functional devices with in-flight micro liquid technology

• Project/Area Number: 25286082
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: General applied physics
• Research Institution: The University of Tokyo
• Principal Investigator: Sakai Keiji 東京大学, 生産技術研究所, 教授 (00215584)
• Co-Investigator(Renkei-kenkyūsha): MITANI Syujiro 東京大学, 生産技術研究所, 助教 (10334369) ; HIRANO Taichi 東京大学, 生産技術研究所, 技術職員 (00401282)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000); Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2013: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
• Keywords: 微小液滴 / インクジェット / ピコリットル液滴 / 人工細胞 / 空中操作 / 表面張力 / ナノレオロジー / マイクロカプセル / 微細加工

Outline of Final Research Achievements

The purpose of this study is to establish a new technique to product micro functional devices using the inkjet technology as well as the non-contact manipulation technique of flying particles. We successfully developed a system to fabricate more than 10,000 particles within a second. We also succeeded in observing the inner structure of the particle. The technique was also applied for the fabrication of the artificial blood cells.

Research Products

• [Journal Article] Measurement of surface tension of liquid microdroplets through observation of droplet collision (2017)
  • Author(s): D. Hayakawa, T. Hirano, S. Mitani , K. Sakai
  • Journal Title: Japanese Jornal of Applied Physics Volume: 印刷中
  • NAID: 210000148019
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Gas viscosity measurement with diamagnetic-levitation viscometer based on electromagnetically spinning system (2016)
  • Author(s): T. Koga, S. Mitani and K. Sakai
  • Journal Title: INTERNATIONAL JOURNAL OF THERMAL SCIENCES Volume: 104 Pages: 342-347
  • DOI: 10.1016/j.ijthermalsci.2016.01.021
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ripplon spectroscopic study on multilayered liquid surface (2015)
  • Author(s): T. Koga, S. Mitani, and K. Sakai
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Pages: 0418011-7
  • NAID: 210000144908
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Dynamic surface tension measurement with temporal resolution on microsecond scale (2014)
  • Author(s): T. Ishiwata, and K. Sakai
  • Journal Title: Appl. Phys. Express Volume: 7 Issue: 7 Pages: 0773011-4
  • DOI: 10.7567/apex.7.077301
  • NAID: 210000137180
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Development of RheoSpec viscometer based on EMS method (2017)
  • Author(s): S. Mitani, M. Hirano, T. Hirano, and K. Sakai
  • Organizer: Annual European Rheology Conference 2017 ＠Copenhagen, Denmark
  • Place of Presentation: Copenhagen, Denmark
  • Year and Date: 2017-04-03
  • Int'l Joint Research
• [Presentation] Measurement of Surface Visco-elasticity by EMS method (2017)
  • Author(s): K. Sakai, M. Hosoda*, and T. Hirano
  • Organizer: Annual European Rheology Conference 2017 ＠Copenhagen, Denmark
  • Place of Presentation: Copenhagen, Denmark
  • Year and Date: 2017-04-03
  • Int'l Joint Research
• [Presentation] Determination of exact gelation point and measurement of tiny elastic modulus using disk-type EMS (2016)
  • Author(s): T. Hirano and K. Sakai
  • Organizer: Symposium on Ultrasonic Electronics
  • Place of Presentation: Pusang, Korea
  • Year and Date: 2016-11-15
  • Int'l Joint Research
• [Presentation] Collision of dynamics of microdroplets (2016)
  • Author(s): D. Hayakawa, S. Mitani, and K. Sakai
  • Organizer: Symposium on Ultrasonic Electronics
  • Place of Presentation: Pusang, Korea
  • Year and Date: 2016-11-15
  • Int'l Joint Research
• [Presentation] インクジェットシステムを利用した微小球ゲルの高速生成 (2016)
  • Author(s): 下河有司，美谷周二朗，酒井啓司
  • Organizer: 応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学（東京)
  • Year and Date: 2016-03-19
• [Presentation] 前方光散乱を用いた微小液滴径のオンサイト測定 (2016)
  • Author(s): 早川大智，美谷周二朗，酒井啓司
  • Organizer: 超音波研究会
  • Place of Presentation: 関西大学(大阪)
  • Year and Date: 2016-01-28
• [Presentation] Measurement system for surface tension of flying droplet with high time resolution (2015)
  • Author(s): S. Mitani and K. Sakai
  • Organizer: The International Chemical Congress of Pacihic Basin Societies
  • Place of Presentation: Honolulu(USA)
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] Ripplon Resonance in Confined Liquid Surface (2014)
  • Author(s): T. Koga, S. Mitani, and K. Sakai
  • Organizer: The 35th Symposium on UltraSonic Electronics
  • Place of Presentation: Meiji University, Tokyo
  • Year and Date: 2014-12-03 – 2014-12-05
• [Presentation] 飛翔液滴の非接触振動励起による液体物性計測 (2014)
  • Author(s): 浜口透子，下河有司，酒井啓司
  • Organizer: 第62回レオロジー討論会
  • Place of Presentation: 福井地域交流プラザ
  • Year and Date: 2014-10-15 – 2014-10-17
• [Remarks] http://sakailab.iis.u-tokyo.ac.jp/
• [Remarks] http://sakailab.iis.u-tokyo.ac.jp/index.html
• [Remarks] 酒井研究室ホームページ
  • URL: http://sakailab.iis.u-tokyo.ac.jp/index.html
• [Remarks] http://sakailab.iis.u-tokyo.ac.jp/index.html