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Nano-rheology engineering using in-air micro-droplet technology

Research Project

Project/Area Number 19360039
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionThe University of Tokyo

Principal Investigator

SAKAI Keiji  The University of Tokyo, 生産技術研究所, 教授 (00215584)

Co-Investigator(Kenkyū-buntansha) 美谷 周二朗  東京大学, 生産技術研究所, 助教 (10334369)
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) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2009: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2008: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2007: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Keywords微小液滴 / ナノレオロジー / インクジェット / マイクロ化学反応 / 疑似細胞 / レオロジー / 界面吸着現象 / 衝撃波吐出 / ストロボ顕微撮影 / 粘弾性測定 / 動的表面張力 / 動的表面張
Research Abstract

Soft condensed materials, such as liquid crystal, gel, micelle and bio systems are characterized by its organized micro-structures, which is formed in a self assembling manner. These materials are also featured by its strong response to the outer stimulation such as the change of temperature and pressure, shear deformation, and the application of the electric/magnetic field. Recently, many investigations have been carried out to realize the fabrication of soft integrated devices by using the above soft condensed materials. The purpose of this study is to establish the nano-rheoloy engineering technique which observes the dynamic process of micro fluid droplet formed and undergoing various phase transition in the air. In the study, we developed a new technique to observe the pico-litter chemical reaction through the microscopic and high speed observation of the collision of micro particles. We succeeded in explaining the proceeding of the chemical reaction in terms of the diffusion of molecules in small chemical reactors.
We have also developed a new technique to fabricate a series of liquid particle with high reputation rate of 500,000 shots per our by using the spontaneous growth of the fluctuation in diameter in the one dimensional fluid system : a liquid jet continuously generated from a thin nozzle is modulated in its diameter by a piezo-driver. By observing the break-up phenomena of the fluid jet, we could successfully show that evolution in the shape of the jet provides us of the dynamic mechanical properties of the aqueous solution, such as surface tension and visco-elasticity. In conclusion, the technique developed by us in this project would be powerful tools to investigate the nanoscopic fluid physics.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (21 results)

All 2011 2010 2009 2008 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (6 results) Remarks (3 results) Patent(Industrial Property Rights) (4 results)

  • [Journal Article] On-demand trajectory control of continuously generated airborne microdroplets2011

    • Author(s)
      T.Ishiwata, K.Sakai
    • Journal Title

      Appl.Phys.Lett. Vol.98

      Pages: 1941091-3

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Liquid Jet Breakup by High Frequency Pressure Modulation2010

    • Author(s)
      A.Takeuchi, T.Yamada, K.Sakai
    • Journal Title

      Jpn.J.Appl.Phys. Vol.49

    • NAID

      210000068844

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Accurate determination of volume and evaporation rate of micron-size liquid particle2010

    • Author(s)
      T.Yamada, N.Sasagawa, K.Sakai
    • Journal Title

      J.Appl.Phys. Vol.108

      Pages: 0635231-4

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Liquid Jet Breakup by High Frequency Pressure Modulation2010

    • Author(s)
      A.Takeuchi, T.Yamada, K.Sakai
    • Journal Title

      Jpn.J.Appl.Phys.

      Volume: 49

    • NAID

      210000068844

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hyper rheology measurement by emission and collision of micro-fluid particles2008

    • Author(s)
      H.Kutsuna, K.Sakai
    • Journal Title

      Appl.Phys.Express vol.1

      Pages: 0270021-3

    • NAID

      10025079279

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of rheological properties under high shear rate induced by collision of micro-droplets2008

    • Author(s)
      T.Hirano, H.Kutsuna, K.Sakai
    • Journal Title

      AIP Conf.Proc. vol.1027

      Pages: 1123-1125

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermal phonon resonance in nitrogen gas observed by Brillouin scattering2008

    • Author(s)
      Y.Minami, T.Yogi, K.Sakai
    • Journal Title

      Phys.Rev.A 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental determination of the shear, rotational, and coupling viscosities for 6CB2008

    • Author(s)
      T. Hirano, K. Sakai
    • Journal Title

      Phys. Rev. E 77

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 振動励振法による基板上液滴の物性観察2011

    • Author(s)
      山田辰也,酒井啓司
    • Organizer
      第58回応用物理学関係連合講演会講演予稿集(p 18-013)
    • Place of Presentation
      神奈川
    • Year and Date
      2011-03-24
    • Related Report
      2009 Final Research Report
  • [Presentation] 液体ジェット観察による表面張力・粘性測定2011

    • Author(s)
      石綿友樹,酒井啓司
    • Organizer
      第58回応用物理学関係連合講演会講演予稿集(p 18-019)
    • Place of Presentation
      神奈川
    • Year and Date
      2011-03-24
    • Related Report
      2009 Final Research Report
  • [Presentation] 次世代インクジェット技術-原理・現状・将来性-2011

    • Author(s)
      酒井啓司
    • Organizer
      第26回塗料・塗装研究発表会
    • Place of Presentation
      新宿(招待講演)
    • Year and Date
      2011-03-11
    • Related Report
      2009 Final Research Report
  • [Presentation] インクジェット技術の新展開2011

    • Author(s)
      酒井啓司
    • Organizer
      塗料・塗装研究会
    • Place of Presentation
      工学院大学
    • Year and Date
      2011-03-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] 高周波圧力変動による液体ジェットの自励発振分裂の観察2009

    • Author(s)
      竹内淳、酒井啓司
    • Organizer
      音波と物性討論会
    • Place of Presentation
      東京大学
    • Year and Date
      2009-10-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 微小液滴射出時の分子配向観察2008

    • Author(s)
      平野太一, 酒井啓司
    • Organizer
      第52回音波と物性討論会
    • Place of Presentation
      同志社大学東京オフィス
    • Year and Date
      2008-10-30
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://sakailab.iis.u-tokyo.ac.jp/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://sakailab.iis.u-tokyo.ac.jp/index.html

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://sakailab.iis.u-tokyo.ac.jp/index.html

    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] 飛翔物体の飛翔方向の制御方法2010

    • Inventor(s)
      酒井啓司、石綿友樹
    • Industrial Property Rights Holder
      東京大学
    • Industrial Property Number
      2010-038881
    • Filing Date
      2010-02-24
    • Related Report
      2009 Final Research Report
  • [Patent(Industrial Property Rights)] 飛翔物体の飛翔方向の制御方法及び制御装置2010

    • Inventor(s)
      酒井啓司
    • Industrial Property Rights Holder
      東京大学
    • Industrial Property Number
      2010-038881
    • Filing Date
      2010-02-24
    • Related Report
      2009 Annual Research Report
  • [Patent(Industrial Property Rights)] 物性の測定方法及び物性の測定装置2009

    • Inventor(s)
      美谷周二朗、酒井啓司
    • Industrial Property Rights Holder
      生産技術奨励会
    • Industrial Property Number
      2009-096874
    • Filing Date
      2009-04-13
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 粘性弾性測定装置及びその製造方法2008

    • Inventor(s)
      酒井啓司
    • Industrial Property Rights Holder
      東京大学
    • Industrial Property Number
      2008-116359
    • Filing Date
      2008-09-28
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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