Study on Non-linear Laser-Photophoretic Phenomena of Micro-Particles in Liquids and its Application to Particle Separation

• Project/Area Number: 18350042
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Analytical chemistry
• Research Institution: High Energy Accelerator Research Organization (2008); Osaka University (2006-2007)
• Principal Investigator: MONJUSHIRO Hideaki High Energy Accelerator Research Organization, 放射線科学センター, 教授 (80191071)
• Co-Investigator(Kenkyū-buntansha): WATARAI Hitoshi 大阪大学, 大学院・理学研究科, 教授 (30091771)
• Co-Investigator(Renkei-kenkyūsha): WATARAI Hitoshi 大阪大学, 大学院・理学研究科, 教授 (30091771)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥17,340,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥2,040,000); Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2007: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2006: ¥8,500,000 (Direct Cost: ¥8,500,000)
• Keywords: 分離分析 / レーザー光泳動 / 光熱変換 / 非線形現象 / 気泡 / マランゴニ効果 / 界面張力 / 液滴 / 赤血球 / 輻射圧

Research Abstract

液体中に存在する固体、液体、気体微粒子にレーザー光を照射し、光の吸収に起因する、光吸収性の微粒子のレーザー光泳動速度の増幅現象や気泡のレーザー照射位置へのトラップ現象など特異な微粒子の挙動を発見した。詳細な実験と解析により、これらの現象の機構が、レーザー光の吸収とそれに伴う局所的な熱の発生によるものであることを明らかにした。さらにこれらの現象を利用した微粒子の分離分析法の提案を行った。

Research Products

• [Journal Article] Simple and Precise Size-Separation of Microparticles by Nano-Gap Method (2009)
  • Author(s): Yukiko Enomoto, Hideaki Monjushiro, Hitoshi Watarai
  • Journal Title: Analytical Sciences vol.25 Pages: 605-610
  • NAID: 10025212106
  • Peer Reviewed
• [Journal Article] Simple and Precise Size-Separation of Microparticles by Nano-Gap Method (2009)
  • Author(s): Yukiko Enomoto
  • Journal Title: Analytical Sciences 25(印刷中)
  • Peer Reviewed
• [Journal Article] Linear dichroism of Zn(II)-tetrapyridylporphine aggregates formed at the toluene/water interface (2008)
  • Author(s): Hideaki Takechi, Kenta Adachi, Hideaki Monjushiro, Hitoshi Watarai
  • Journal Title: Langmuir vol. 24 Pages: 4722-4728
  • Peer Reviewed
• [Journal Article] Microscopic Measurement of Circular Dichroism Spectra (2008)
  • Author(s): Aira MATSUGAKI, Hideaki TAKECHI, Hideaki Monjushiro, Hitoshi Watarai
  • Journal Title: Analytical Sciences vol.24 Pages: 297-300
  • NAID: 10021098731
  • Peer Reviewed
• [Journal Article] Linear Dichroism of Zn(II)-Tetrapyridylporphine Aggregates Formed at the Toluene/Water Interface (2008)
  • Author(s): Takechi H
  • Journal Title: Langmuir 24 Pages: 4722-8
  • Peer Reviewed
• [Journal Article] Microscopic Measurement of Circular Dichroism Spectra (2008)
  • Author(s): MATSUGAKI, Aira
  • Journal Title: Analytical Sciences 24 Pages: 297-300
  • Peer Reviewed
• [Journal Article] Optical chirality of protonated tetraphenylporphyrin J-aggregate formed at the liquid?liquid interface in a centrifugal liquid membrane cell (2007)
  • Author(s): Sayaka Wada, Kazuhiko Fujiwara, Hideaki Monjushiro, Hitoshi Watarai
  • Journal Title: J. Phys. : Condens. Matter vol.19, 375105 Pages: 12-12
  • Peer Reviewed
• [Journal Article] Optical chirality of protonated tetraphenylporphyrin J-aggregate formed at the liquid/liquid interface in a centrifugal liquid membrane cell. (2007)
  • Author(s): WADA, Sayaka
  • Journal Title: J. Phys.: Condens. Matter, 19
  • Peer Reviewed
• [Presentation] Laser-Photothermal Migration of a Micro-Bubble in Organic Solvent (2009)
  • Author(s): Yuka Urabe, Hideaki Monjushiro, Hitoshi Watarai
  • Organizer: 60th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy
  • Place of Presentation: Chicago, IL, USA
• [Presentation] Laser-Photophoretic Migration and Separation of Human Blood Cells (2008)
  • Author(s): MONJUSHIRO, Hideaki
  • Organizer: 22nd International Symposium on Microscale bioseparations and methods for systems biology
  • Place of Presentation: Freie Universitat, Berlin, Germany
  • Year and Date: 2008-03-11
• [Presentation] Xeランプを光源とする光吸収性微粒子の光泳動 (2008)
  • Author(s): 高橋茉里、文珠四郎秀昭、渡會仁
  • Organizer: 日本分析化学会第57年会
  • Place of Presentation: 福岡大学(福岡市)
• [Presentation] 気泡およびw/o液滴のレーザー光熱変換熱泳動機構 (2008)
  • Author(s): 卜部由佳、文珠四郎秀昭、渡會仁
  • Organizer: 第69回分析化学討論会
  • Place of Presentation: 名古屋国際会議場(名古屋市)
• [Presentation] レーザー光熱変換による気泡およびo/w液滴のトラップ挙動の解析 (2007)
  • Author(s): 卜部由佳
  • Organizer: 第56回日本分析化学会年会
  • Place of Presentation: 徳島大学,徳島県
  • Year and Date: 2007-09-21
• [Presentation] Laser-Photophoretic Migration and Separation of Human Blood Cells (2007)
  • Author(s): MONJUSHIRO, Hideaki
  • Organizer: 13th International Symposium on Field-and Flow-based Separations
  • Place of Presentation: University of Utah Salt Lake City, Utah, USA
  • Year and Date: 2007-07-29
• [Presentation] レーザーによる有機溶媒中での気泡発生とトラップ挙動の解析 (2007)
  • Author(s): 卜部由佳
  • Organizer: 第68回分析化学討論会
  • Place of Presentation: 宇都宮大学,栃木県
  • Year and Date: 2007-05-20
• [Presentation] Microscopic Circular Dichroism Measurements of Biological Samples (2007)
  • Author(s): Hideaki Monjushiro, Hideaki Takechi, Aira Matsugaki, Hitoshi Watarai
  • Organizer: International Symposium on Metallomics 2007(ISM2007)
  • Place of Presentation: Nagoya, Japan
• [Presentation] レーザー光熱変換による気泡およびo/w液滴のトラップ挙動の解析 (2007)
  • Author(s): 卜部由佳, 文珠四郎秀昭, 渡會仁
  • Organizer: 本分析化学会第56年会
  • Place of Presentation: 徳島大学(徳島市)
• [Presentation] Laser-Photophoretic Migration and Separation of Human Blood Cells (2007)
  • Author(s): Hideaki Monjushiro, Yuko Tanahashi, Hitoshi Watarai
  • Organizer: 13th International Symposium on Field- and Flow-based Separations (FFF 2007)
  • Place of Presentation: University of Utah, Salt Lake City, Utah, USA
• [Presentation] レーザーによる有機溶媒中での気泡の発生とトラップ挙動の解析 (2007)
  • Author(s): 卜部由佳, 五十嵐千佳栄, 文珠四郎秀昭, 渡會仁
  • Organizer: 第68回分析化学討論会
  • Place of Presentation: 宇都宮大学(宇都宮市)