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Temperature-jump and microspectroscopy technique for a study of mass transfer in a porous microparticle system

Research Project

Project/Area Number 17550071
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Analytical chemistry
Research InstitutionUniversity of Tsukuba

Principal Investigator

NAKATANI Kiyoharu  University of Tsukuba, Graduate School of Pure and Applied Sciences, Associate Professor (00250415)

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,840,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2005: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywordstemnerature-jump / microparticle / mass transfer
Research Abstract

We have developed fluorescence microspectroscopy techniques combined with laser temperature (T)-jump methods to analyzed chemical and physical processes for microparticles. Using a Nd^<3+>: YAG laser-Raman shifter, a light beam of 1200 nm (13 ns) was focused (spot size of〜20 μm) into water under an optical microscope. By the technique, T-jump greater than ΔT〜7K could be induced and fluorescence responses with temporal resolution of 10^8 s in the focused area were analyzed. Using a CW Nd^<3+>: YVO_4 laser, furthermore, another technique of T-jump greater than ΔT〜10 K (2〜3 μm) and temporal resolution of 1 ms was developed. These techniques were applied to phase transition and the microparticle formation by the phase separation of an aqueous poly (N-isopropylacrylamide) solution. The phase transition time could be directly determined to be 10 μs in solution. In 50 nm-sized pores of a microparticle, the phase transition time was greater than 10 ms. Intraparticle diffusion of coumarin 101 in ODS silica gel possessing pore diameter (d_p) of 12 nm could be measured by the CW laser T-jump technique. As comprehensive measurements, using single microparticle injection and absorption microspectroscopy, intraparticle diffusion was analyzed by quick concentration or pH change. Intraparticle diffusion in ODS silica gel with (d_p)=12 nm was limited by pore diffusion, analogous to that in silica gel with d_p=3〜30 nm. In a chitin derivative microsphere with d_p=〜1 nm, on the other hand, the rate-determining step of the intraparticle diffusion was surface diffusion. We conclude that the microscopic mechanisms of mass transfer in microparticle systems are successfully elucidated by potential applications of the present techniques.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (23 results)

All 2008 2007 2006 2005

All Journal Article (18 results) (of which Peer Reviewed: 3 results) Presentation (5 results)

  • [Journal Article] Mass Transfer of Weak Acid in Nanometer-Sized Pores of Octadecylsilyl-Silica Gel2008

    • Author(s)
      H. Kakizaki, C. Aonuma and K. Nakatani
    • Journal Title

      J. Coilloid Interface Sci 307/1

      Pages: 250-253

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Sorption and Desorption of Pesticide in the Octadecylsilyl-Silica Gel/Water System by Single Microparticle Injection and Absorption Microspectroscopy2008

    • Author(s)
      K. Chikama, H. Kakizaki and K. Nakatani
    • Journal Title

      Colloids Surf. A : Physicochem. Eng. Aspects 315

      Pages: 250-253

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Diffusion of Organic Solute in Nanometer-Sized Pores2008

    • Author(s)
      K. Nakatani
    • Journal Title

      Oleoscience 8

      Pages: 3-8

    • NAID

      130004853504

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Release Mechanism from Microsphere of a Silkworm Chitin Derivative Studied by Single Microparticle Injection and Absorption Microspectroscopy2008

    • Author(s)
      K. Nakatani, Y. Kobayashi and A. Haga
    • Journal Title

      Anal. Sci 24(5)

      Pages: 667-680

    • NAID

      10021100346

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Sorption and Desorption of Pesticide in the Octadecylsilyl-Silica Gel-Water System by Single Microparticle Injection and Absorption Microspectroscopy2008

    • Author(s)
      K. Chikama
    • Journal Title

      Colloids Surf. A: Physicochem. Eng. Aspects 315

      Pages: 250-253

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 有機分子のナノサイズ細孔内拡散2008

    • Author(s)
      中谷 清治
    • Journal Title

      オレオサイエンス 8

      Pages: 3-8

    • NAID

      130004853504

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Release Mechanism from Microsphere of a Silkworm Chitin Derivative Studied by Single Microparticle Injection and Absorption Microspectroscopy2008

    • Author(s)
      K. Nakatani
    • Journal Title

      Anal. Sci. 24(in press)

    • NAID

      10021100346

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mass Transfer of Weak Acid in Nanometer-Sized Pores of Octadecylsilyl-Silica Gel2007

    • Author(s)
      H.Kakizaki
    • Journal Title

      J.Colloid Interface Sci. 307/1

      Pages: 166-171

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Interfacial Behavior of Sulforhodamine 101 at the Polarized Water/1, 2-Dichloroethane Interface Studied by Spectroelectrochemical Techniques2006

    • Author(s)
      H. Nagatani, S. Suzuki, David J. Fermin, H. H. Girault and K. Nakatani
    • Journal Title

      Anal. Bioanal. Chem 386

      Pages: 633-638

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Interfacial Behavior of Sulforhodamine 101 at the Polarized Water/1,2-Dichloroethane Interface Studied by Spectroelectrochemical Techniques2006

    • Author(s)
      H.Nagatani
    • Journal Title

      Anal.Bioanal.Chem. 386

      Pages: 633-638

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Electron Transfer across Single Micro-Water-Droplet |Oil Interface using Microcapillary Injection and Microelectrode Methods2005

    • Author(s)
      K. Nakatani, J. Yamashita, T. Negishi and T. Osakai
    • Journal Title

      J. Electroanal. Chem 575/1

      Pages: 27-32

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Kinetic Analysis of Ion Pair Extraction of an Alkyl Sulfate Anion across Liquid/Liquid Interface by Fluorescence Microspectroscopy and Microelectrochemistry of Single Microdroplets2005

    • Author(s)
      T. Negishi and K. Nakatani
    • Journal Title

      Anal. Chem. 77

      Pages: 1807-1812

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Evaluation of the Distribution in Mesopores of ODS-Silica Gel in Alcohol-Water Solvent by Absorption Microspectroscopy2005

    • Author(s)
      H. Kakizaki and K. Nakatani
    • Journal Title

      Bunseki Kagaku 54

      Pages: 479-484

    • NAID

      110002910089

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Studies on Mass Transfer of Pollutants in a Soil Model Microparticle System Based on Surface and Analytical Chemistry2005

    • Author(s)
      K. Nakatani and H. Kakizaki
    • Journal Title

      Bunseki

      Pages: 632-634

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Electron Transfer across Single Micro-Water-Droplet Oil Interface using Microcapillary Injection and Microelectrode Methods2005

    • Author(s)
      K.Nakatani
    • Journal Title

      J.Electroanal.Chem. 575/1

      Pages: 27-32

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Kinetic Analysis of Ion Pair Extraction of an Alkyl Sulfate Anion across Liquid/Liquid Interface by Fluorescence Microspectroscopy and Microelectrochemistry of Single Microdroplets2005

    • Author(s)
      T.Negishi
    • Journal Title

      Anal.Chem 77

      Pages: 1807-1812

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 顕微吸光法によるアルコール-水系におけるオクタデシルシリルシリカゲル細孔内分配過程の評価2005

    • Author(s)
      蛎崎 洋
    • Journal Title

      分析化学 54

      Pages: 479-484

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 土壌モデル微粒子系における有機汚染物質の移動過程の界面分析2005

    • Author(s)
      中谷 清治
    • Journal Title

      ぶんせき 11

      Pages: 616-618

    • NAID

      10016772395

    • Related Report
      2005 Annual Research Report
  • [Presentation] Diffusion of Organic Solute in Nanometer-Sized Pores2007

    • Author(s)
      K. Nakatani
    • Organizer
      Oleo-Nano-Science Symposium 2007
    • Place of Presentation
      Tokyo University of Science, Tokyo
    • Year and Date
      2007-11-19
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 有機分子のナノサイズ細孔内拡散2007

    • Author(s)
      中谷 清治
    • Organizer
      オレオナノサイエンスシンポジウム2007
    • Place of Presentation
      東京理科大学(東京都)
    • Year and Date
      2007-11-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] Pore Wall Effect on Intraparticle Diffusion Studied by Single Microparticle Measurement Technique2007

    • Author(s)
      K. Nakatani
    • Organizer
      The 60th Divisional Meeting on Colloid and Surface Chemistry, the Chemical Society of Japan
    • Place of Presentation
      Shinshu University, Nagano
    • Year and Date
      2007-09-20
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 単一粒子内での拡散測定法と細孔壁面の効果2007

    • Author(s)
      中谷 清治
    • Organizer
      第60回コロイドおよび界面化学討論会
    • Place of Presentation
      信州大学(長野県)
    • Year and Date
      2007-09-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Interfacial Processes in Microparticle Systems by Laser Temperature-Jump Technique2006

    • Author(s)
      M. Uchino, Y. Suenobu and K. Nakatani
    • Organizer
      The 55th Meeting on the Japan Society for Analytical Chemistry
    • Place of Presentation
      Osaka University, Osaka
    • Year and Date
      2006-09-22
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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