Separation of micro-particles by using electromagnetic field of laser combined with thermal or electrostatic separation fields.

• Project/Area Number: 21350046
• 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
• Principal Investigator: MONJUSHIRO Hideaki 大学共同利用機関法人高エネルギー加速器研究機構, 放射線科学センター, 教授 (80191071)
• Co-Investigator(Kenkyū-buntansha): BESSHO Kotaro 大学共同利用機関法人高エネルギー加速器研究機構, 放射線科学センター, 准教授 (10300675)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2010: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000); Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
• Keywords: 分離分析 / 微粒子 / 光泳動 / 光熱変換 / 分析科学 / 反応・分離 / 光ピンセット

Research Abstract

The behavior of fine particles under newly designed separation field by combining DC electric field with electromagnetic field of laser light and/or laser-induced temperature field, were examined in detail. By using combination of electrophoresis and laser photophoresis, it was revealed that micro-particles with different properties, such as particle size, zeta potential and light absorbing, can be separated in the reverse direction. It was found that efficient separation by designed combination field is available in particular for micro-particles with light absorption.

Research Products

• [Journal Article] Migration and Separation of Photo-Absorbing Micro-Particles Using Laser-Photophoresis in Aqueous Solution (2010)
  • Author(s): H. Monjushiro, M. Takahashi, and H. Watarai
  • Journal Title: Proceedings of The 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences Pages: 1739-1741
  • Peer Reviewed
• [Journal Article] MIGRATION AND SEPARATION OF PHOTO-ABSORBING MICRO-PARTICLES USING LASER-PHOTOPHORESIS IN AQUEOUS SOLUTION (2010)
  • Author(s): H.Monjushiro, M.Takahashi, H.Watarai
  • Journal Title: Proceedings of The 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences Pages: 1739-1741
  • Peer Reviewed
• [Journal Article] Simple and Precise Size-Separation of Microparticles by a Nano-Gap Method (2009)
  • Author(s): ENOMOTO, Yukiko ; MONJUSHIRO Hideaki ; WATARAI, Hitoshi
  • Journal Title: Anal. Sci. Volume: 25(5) Pages: 605-610
  • Peer Reviewed
• [Presentation] レーザー光泳動法による有色微粒子のマイクロチップ分離法の検討 (2011)
  • Author(s): 文珠四郎秀昭,別所光太郎,渡會仁
  • Organizer: 日本分析化学会第60年会
  • Place of Presentation: 名古屋大学東山キャンパス(愛知県)
  • Year and Date: 2011-09-16
• [Presentation] Migration and Separation of Photo-Absorbing Micro-Particles Using Laser-Photophoresis in Aqueous Solution (2010)
  • Author(s): H. Monjushiro, M. Takahashi, and H. Watarai
  • Organizer: The 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences(Micro-TAS 2010)
  • Place of Presentation: University of Groningen, Groningen, The Netherlands
• [Presentation] 光電磁場と直流電場を組み合わせた複合場における水中微粒子の泳動挙動の解析 (2010)
  • Author(s): 文珠四郎秀昭・別所光太郎・渡會仁
  • Organizer: 日本分析化学会第59年会
  • Place of Presentation: 東北大学川内北キャンパス(仙台市)
• [Presentation] MIGRATION AND SEPARATION OF PHOTO-ABSORBING MICRO-PARTICLES USING LASER-PHOTOPHORESIS IN AQUEOUS SOLUTION (2010)
  • Author(s): H.Monjushiro, M.Takahashi, H.Watarai
  • Organizer: The 14th International Conference on Miniaturized Systems for Chemistry and Life Sciences
  • Place of Presentation: University of Groningen, Groningen, The Netherlands
• [Presentation] 光電磁場と直流電場を組み合わせた複合場における水中微粒子の泳動挙動の解析 (2009)
  • Author(s): 文珠四郎秀昭,別所光太郎,渡會仁
  • Organizer: 日本分析化学会第59年会
  • Place of Presentation: 東北大学川内北キャンパス