KOBATAKE Seiya

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Research Areas 【 display / non-display

Functional Materials Chemistry, Photochemistry, Materials Chemistry

Research subject summary 【 display / non-display

  • When a molecular structure changes reversibly by some external stimuli, the properties of the materials consisting of the molecule can change reversibly. Such molecules will possess the switching function. A phenomenon that exhibits a reversible color change by photoirradiation is called photochromism. We have reseached synthesis and physical properties of novel photochromic compounds.

Research Interests 【 display / non-display

Photochromism, Photomechanical, Organic Crystal, Molecular Sensor

Research Career 【 display / non-display

  • Fabrication of fluorescence photoswitching materials

    (Collaboration in Japan) Project Year :

    2013.04
    -
    Today

    Keyword in research subject:  Photochromism, Fluorescence molecule

  • Synthesis and Properties of Organic and Inorganic Hybrid Materials Containing Photochromic Molecules

    (Individual) Project Year :

    2010.04
    -
    Today

    Keyword in research subject:  Photochromism, Silica Nanoparticle, RAFT polymerization

  • Photochromic Behavior and Physical Property of Diarylethene Polymer in Thin Film

    (Individual) Project Year :

    2007.04
    -
    2010.03

    Keyword in research subject:  Photochromism, Diarylethene, Radical polymerization

  • Control of Solid State Properties of Photofunctional Organic Molecular Crystals

    (Individual) Project Year :

    2006.04
    -
    Today

    Keyword in research subject:  Photochromism, Structural changes, Crystal shape changes

Association Memberships 【 display / non-display

  • The Chemical Society of Japan

  • American Chemical Society

  • The Society of Polymer Science, Japan

  • The Japanese Photochemistry Association

  • Materials Research Society

Committee Memberships 【 display / non-display

  • 2018.08
     
     

    13th International Workshop on Crystal Growth of Organic Materials (CGOM13)   Scientific Committee

  • 2018.03
    -
    Today

    J. Photochem. Photobiol. C: Photochemistry Reviews   Associate Editor

Awards & Honors 【 display / non-display

  • The Asian and Oceanian Photochemistry Association Prize for Young Scientist 2010

    2010.11  

  • BCSJ Award, Chemical Society of Japan

    2019.08.15  

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Applied Chemistry and Bioengineering Course   Professor  

  • Osaka City University   The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)  

Career 【 display / non-display

  • 2011.04
    -
    Today

    Osaka City University   Graduate School of Engineering   Professor

  • 2007.04
    -
    2011.03

    Osaka City University  

  • 2006.10
    -
    2010.03

    Japan Science and Technology Agency  

  • 2004.04
    -
    2007.03

    Osaka City University  

  • 2000.08
    -
    2004.03

    Kyushu University  

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Graduate School 【 display / non-display

  • 1993.04
    -
    1996.03

    Osaka City University  Graduate School, Division of Engineering  Department of Applied Chemistry 

  • 1991.04
    -
    1993.03

    Osaka City University  Graduate School, Division of Engineering  Department of Applied Chemistry 

Graduating School 【 display / non-display

  • 1987.04
    -
    1991.03

    Osaka City University   Faculty of Engineering  

 

Published Papers 【 display / non-display

  • Spatial distribution of single guest molecules along thickness of thin films of poly(2-hydroxyethyl acrylate)

    S. Ito, K. Hiratsuka, S. Takei, H. Nishi, D. Kitagawa, S. Kobatake, H. Miyasaka

    Photochem. Photobiol. Sci.    in press 2022.03  [Refereed]

  • Photochromic behavior of diarylbenzene nanoparticles prepared by top-down and bottom-up approaches

    S. Hamatani, D. Kitagawa, R. Maegawa, S. Kobatake

    Materials Advances    in press 2022.03  [Refereed]

  • Correlating reaction dynamics and size change during the photomechanical transformation of 9-methylanthracene single crystals

    K. Morimoto, D. Kitagawa, F. Tong, K. Chalek, L. J. Mueller, C. J. Bardeen, S. Kobatake

    Angew. Chem. Int. Ed.  61 ( 2 ) e202114089 2022.01  [Refereed]

  • Rational design of photochromic diarylbenzene with both high photoreactivity and fast thermal back reactivity

    R. Maegawa, D. Kitagawa, S. Hamatani, S. Kobatake

    New J. Chem.  45 ( 40 ) 18969 - 18975 2021.10  [Refereed]

  • Anisotropic bending and twisting behaviour of a twin crystal composed of a diarylethene

    T. Higashiguchi, D. Kitagawa, S. Kobatake

    CrystEngComm, 23, 5795-5800 (2021).  23 ( 34 ) 5795 - 5800 2021.09  [Refereed]  [Invited]

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Books etc 【 display / non-display

  • Chapter 8. Photochromic bulk materials

    M. Morimoto, S. Kobatake, M. Irie, H. K. Bisoyi, Q. Li, S. Wang, H. Tian (Part: Joint Work )

    Photochromic Materials: Preparation, Properties and Applications, First Edition, Eds. by H. Tian, J. Zhang, Wiley-VCH Verlag  2016

  • Book chapter: Photoinduced mechanical motion of photochromic crystalline materials

    S. Kobatake, D. Kitagawa (Part: Joint Work )

    Advances in Organic Crystal Chemistry, Comprehensive Reviews 2015, Eds.: R. Tamura, M. Miyata, Springer  2015

  • Photochromism. In Progress in the Science of Functional Dyes, Eds.: Y. Ooyama, S. Yagi

    S. Kobatake (Part: Contributor )

    Springer, Singapore  2021.04

  • Photoresponsive molecular crystals for light-driven photoactuators. In Photosynergetic Responses in Molecules and Molecular Aggregates Eds.: H. Miyasaka, K. Matsuda, J. Abe, T. Kawai

    Kobatake Seiya, Kitagawa Daichi (Part: Joint Work )

    Springer, Singapore  2020.09

  • Solid-state fluorescence switching using photochromic diarylethenes. In Advances in Organic Crystal Chemistry, Comprehensive Reviews 2020, Eds.: M. Sakamoto, H. Uekusa

    Kobatake Seiya, Nakahama Tatsumoto (Part: Joint Work )

    Springer, Singapore  2020.07

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Review Papers (Misc) 【 display / non-display

  • Strategy for molecular design of photochromic diarylethenes having thermal functionality

    D. Kitagawa, S. Kobatake

    Chem. Rec.  16 ( 4 ) 2005 - 2015 2016

  • Applying photoresponsive photochromic materials to light-starting thermosensors

    S. Kobatake

    Convertech & e-Print  6 ( 2 ) 57 - 61 2016

  • 光応答性フォトクロミック材料の低温温度センサーへの応用

    コンバーテック, 2015年12月号    82 - 85 2015

  • Photochromism of diarylethene molecules and crystals: Memories, switches, and actuators

    M. Irie, T. Fukaminato, K. Matsuda, S. Kobatake

    Chem. Rev.  114 ( 24 ) 12174 - 12277 2014

  • ジアリールエテンナノ粒子の開環反応に対するレーザー過渡加熱効果

    石橋千英, 増田圭佑, 北川大地, 小畠誠也, 朝日剛

    日本化学会春季年会講演予稿集(CD-ROM)  98th   ROMBUNNO.3G1‐45 2018.03  [Refereed]  [Invited]

    J-GLOBAL

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Conference Activities & Talks 【 display / non-display

  • Photochromic behavior of diarylbenzene nanoparticles prepared by ball-milling and reprecipitation methods

    Shota Hamatani, Daichi Kitagawa, Seiya Kobatake

    日本化学会第102春季年会  2022.03 

  • Photochromic diarylethene crystals for photoresponsive actuators

    Seiya Kobatake  [Invited]

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)  2021.12 

  • Photochromic molecular crystals: From color change to photoactuator

    Seiya Kobatake  [Invited]

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)  2021.12 

  • Recent progress in photomechanical diarylethene crystals

    Daichi Kitagawa, Seiya Kobatake  [Invited]

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)  2021.12 

  • Photoinduced birefringence change of photoreactive organic crystals

    Kohei Morimoto, Daichi Kitagawa, Seiya Kobatake

    2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)  2021.12 

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Other educational activity and Special note 【 display / non-display

  • Contribution to University-wide Cross-training program

    (2021)

  • Contribution to internationalization

    (2021)

  • Extra-Curricular Activities

    (2021)

  • Contribution to FD activities

    (2021)

  • Contribution to internationalization

    (2020)

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Educational activity record 【 display / non-display

  • Academic year : 2018

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    8
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    2
    Number of master's thesis reviews (chief)
    4
    Number of master's thesis reviews (vice-chief)
    4
    Number of doctoral thesis reviews (chief)
    1
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2017

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    7
    Number of instructed the Master course
    7
    Number of instructed the Doctoral course
    2
    Number of master's thesis reviews (chief)
    3
    Number of master's thesis reviews (vice-chief)
    11
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2012

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    4
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    4
    Number of master's thesis reviews (vice-chief)
    9
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    1
  • Academic year : 2011

     View Details

    Number of instructed the graduation thesis
    4
    Number of graduation thesis reviews
    3
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    3
    Number of master's thesis reviews (vice-chief)
    10
    Number of doctoral thesis reviews (chief)
    1
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2010

     View Details

    Number of instructed the graduation thesis
    4
    Number of graduation thesis reviews
    4
    Number of instructed the Master course
    5
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    1
    Number of master's thesis reviews (vice-chief)
    3
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0