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member2013 2014summer


Takashi Kato

Professor, Ph. D (Profile)
Department of Chemistry and Biotechnology
School of Engineering
The University of Tokyo
Tokyo 113-8656 JAPAN

Current Research Areas:
Design, Synthesis, Self-Organization, Control of the Structures, and Functionalization
of
Functional Polymers, Liquid Crystals, Molecular Assemblies, and Organic/Inorganic Hybrids

Overview
Focused Areas
Profile
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Published Papers
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融合マテリアル さきがけ 最先端研究開発支援プログラム

News
  • A paper on dye-sensitized solar cells (DSSCs) containing liquid-crystalline (LC) electrolytes has been published in Chemistry of Materials (doi: 10.1021/cm503090z). This article was selected as “ACS editors’ choice” and it is freely available on the “ACS editors’ choice“ and “Chemistry of Materials.” homepages. The new LC-DSSCs exhibit improved power conversion efficiencies at high temperature and continue working up to 120 °C. This work has been highlighted in an article published online on the magazine “Chemical & Engineering News” on November 7th 2014.
    This work is the result of a collaboration with Prof. Hiroshi Segawa, Prof. Satoshi Uchida (The University of Tokyo) and Prof. Lars Kloo (Royal Institute of Technology, Sweden).
    "Nanostructured Two-Component Liquid-Crystalline Electrolytes for High Temperature Dye-Sensitized Solar Cells" by Daniel Högberg, Bartolome Soberats, Satoshi Uchida, Masafumi Yoshio, Lars Kloo, Hiroshi Segawa and Takashi Kato, Chem. Mater. in press.doi: 10.1021/cm503090z.

  • 4 November, 2014, The 2nd International Symposium on Fusion Materials was held between 2nd -4th November 2014 at the Takeda Hall, the University of Tokyo.
    This symposium were organized by the summarizing group of the MEXT project “Fusion Materials” Grant-in-aid for Scientific Research on Innovative Areas (Area No. 2206), Funded by MEXT.
    12 orals and 71 posters from the project were presented.
    Plenary lectures were given by international advisors.

    Stephen Mann   (University of Bristol, UK)
    Helmut Cölfen    (University of Konstanz, Germany)
    Joanna Aizenberg            (Harvard University, USA)
    Nico A.J.M. Sommerdijk   (Eindhoven University of Technology, The Netherlands)
    Michael Aizenberg            (Harvard University, USA)
    Fiona Meldrum (University of Leeds, UK)
    David Kisailus   (University of California Riverside, USA)


  • A review paper on biomineralization and bio-inspired materials syntheses is published in Organic & Biomolecular Chemistry, Royal Society of Chemistry (doi:10.1039/C4OB01796J). This paper is the results of collaboration with Prof. Atsushi Arakaki (Tokyo University of Agriculture and Technology) and Prof. Katsuhiko Shimizu (Tottori University).
    Atsushi Arakaki, Katsuhiko Shimizu, Mayumi Oda, Takeshi Sakamoto, Tatsuya Nishimura, and Takashi Kato,
     “Biomineralization-Inspired Synthesis of Functional Organic/Inorganic Hybrid Materials: Organic Molecular Control of Self-Organization of Hybrids”
    Org. Biomol. Chem., in press. doi: 10.1039/C4OB01796J

  • Doctor Etienne Baranoff, University of Birmingham, UK visited the Kato Group on Friday, September 19, 2014 and gave us the seminar entitled 鼎yclometalated iridium(III) complexes To OLEDs materials and beyond. He is an alumnus of the Kato group (Postdoctoral Research Fellow, 2004-2006); A representative publication: Etienne D. Baranoff, Julie Voignier, Takuma Yasuda, Val駻ie Heitz, Jean-Pierre Sauvage, and Takashi Kato
    "A Liquid-Crystalline [2]Catenane and Its Copper(I) Complex"
    Angew. Chem. Int. Ed., 46, 4680-4683 (2007).


  • The paper on the development of patterned hybrid materials using thermoresponsive polymer has been published in this Special Issue of Polymer Journal (Published by the Society of Polymer Science Japan and Nature Publishing Group). (August 2014)
    Yulai Han, Tatsuya Nishimura, and Takashi Kato,
    "Biomineralization-inspired approach to the development of hybrid materials: preparation of patterned polymer/strontium carbonate thin films using thermoresponsive polymer brush matrices".
    Polym. J., 46, 499-504 (2014) (Special Issue: Biorelated Polymers and Materials)

  • Prof Kato gave a Plenary Lecture at the 25th International Liquid Crystal Conference.
    Takashi Kato, "Nanostructured Functional Liquid Crystals for Energy and Environment ", the 25th International Liquid Crystal Conference (ILCC2014), Dublin, Ireland, 4 July 2014.

  • The paper on the photocontrol of ion-transporting ionic pathways has been published in Journal of the American Chemical Society. This work is the results of collaboration with Prof. Hiroyuki Ohno (Tokyo University of Agriculture and Technology). (9 July 2014)
    Bartolome Soberats, Emi Uchida, Masafumi Yoshio, Junko Kagimoto, Hiroyuki Ohno, and Takashi Kato,
    "Macroscopic Photocontrol of Ion-Transporting Pathways of a Nanostructured Imidazolium-Based Photoresponsive Liquid Crystal"
    J. Am. Chem. Soc., 136, 9552-9555 (2014).


  • Science seminar for junior high school and high school students, which is organized by the Kanto branch of the Society of Polymer Science, Japan in cooperation with the Japan Science Foundation, was held at the Science Museum in Tokyo on 12th July, 2014. The students enjoyed lectures on polymer science given by teachers from companies and universities. Some members of Kato Lab assisted the event.

  • Dr. Takeshi Sakamoto has received Award for Encouragement of Research in Polymer Science, the Society of Polymer Science, Japan for his research "Development of Polymer/Inorganic Hybrid Materials through Self-Organization Processes". (May, 2014)

  • The work on "the development of CaCO3/PNIPAm hybrid thin films with distinctly different crystallographic orientations" has been published in CrystEngComm (Royal Society of Chemistry). This paper reports on the use of stimuli-responsive polymer brush matrices for the morphological and orientational tuning of calcium carbonate/polymer hybrid thin films. (7 May 2014)
    Yulai Han, Tatsuya Nishimura and Takashi Kato,
    "Morphology Tuning in the Formation of Vaterite Crystal Thin Films with Thermoresponsive Poly(N-isopropylacrylamide) Brush Matrices"
    CrystEngComm, 16, 3540-3547 (2014).

  • The paper on "development of transparent hybrid materials using cellulose nanofibers" has been published in Material Horizons (Royal Society of Chemistry), and selected as front cover picture. (1 May 2014)
    Tsuguyuki Saito, Yuya Oaki, Tatsuya Nishimura, Akira Isogai, and Takashi Kato,
    "Bioinspired Stiff and Flexible Composites of Nanocellulose-Reinforced Amorphous CaCO3"
    Mater. Horiz., 1, 321-325 (2014).




  • Dr. Bartolome Soberats has received a CSJ presentation award 2014 for the oral presentation "Zwitterionic Liquid Crystals as Ion-Transporting Media" at the 94th annual meeting of the Chemical Society of Japan, held in Nagoya from 27th to 30th of March of 2014. (10 April 2014)





  • Professor Pablo Ballester, Catalan Institution for Research and Advanced Studies(ICREA), Spain visited the Kato Group on Saturday 15, March, 2014 and gave us the seminar entitled "Supramolecular Chemistry of Calix[4]pyrroles".

  • Professor Wen-Chang Chen, National Taiwan University, Taiwan visited the Kato Group on Saturday 5, March, 2014 and gave us the seminar entitled "Nonvolatile Memory Devices Based on Electroactive Polymeric Materials".

  • Professor Helmut Cölfen, University of Konstanz, Germany visited the Kato Group on Tuesday 4, March, 2014 and gave us the seminar entitled "Bio-inspired Organic-Inorganic Hybrid Materials".

  • The paper on 吐ormation and morphology control of CaCO3 thin films using polyrotaxanes has been published in CrystEngComm (Royal Society of Chemistry). (28 February 2014)
    Fangjie Zhu, Tatsuya Nishimura, Hiroki Eimura, and Takashi Kato,
    "Supramolecular Effects on Formation of CaCO3 Thin Films on a Polymer Matrix"
    CrystEngComm, 16, 1496-1501 (2014).

  • Assistant Professor Ivan Aprahamian, Dartmouth College, USA visited the Kato Group on Friday, February 28, 2014 and gave us the seminar entitled "Hydrazone-Based Switches, Fluorophores and Sensors".






  • Professor Chris Ober, Cornell University, USA visited the Kato Group on Thursday 27, February, 2014 and gave us the seminar entitled "Patternable Structures as Interfaces with the Biological Environment".






  • Professor Charl F. J. Faul, University of Bristol, UK visited the Kato Group on Tuesday, February 14, 2014 and gave us the seminar entitled "Complex and Hierarchical Soft Electroactive".






  • The work on "Development of organic/inorganic hybrids consisting of aragonite nanorods" is published in Small, Wiely-VCH. This paper reports on the nanostrucrured hybrid thin films comprising aragonite nanorods. (15 January 2014)
    Satoshi Kajiyama, Tatsuya Nishimura, Takeshi Sakamoto, and Takashi Kato,
    "Aragonite Nanorods in Calcium Carbonate/Polymer Hybrids Formed through Self-Organization Processes from Amorphous Calcium Carbonate Solution" Small. doi: 10.1002/smll.201302745.

  • Science seminar for junior high school and high school students was held at Science Museum on 7th December, 2013. Students enjoyed lectures on polymers given by teachers from companies and universities. Members of Kato Lab assisted their experiments.

  • The study on the Aggregation-Induced Emission is published in Chemistry Letters (The Chemical Society of Japan). This work is the results of collaboration with Prof. Miki Hasegawa (Aoyama Gakuin University). (15 November 2013)
    Kana Tanabe, Daisuke Kodama, Miki Hasegawa, Takashi Kato,
    "Aggregation-Induced Emission of a Liquid-Crystalline Quinolinium Salt Molecule in Aqueous Solution", Chem. Lett., 43, 184-186 (2014).

  • The work on 泥evelopment of organic/inorganic hybrids by using Mg2+ ions is published in Chemistry - an Asian Journal, Wiely-VCH. This paper reports on the experimental and simulation studies about the formation of aragonite thin films. This work is the results of collaboration with Dr. Hiroki Nada (AIST) Prof. Hirotsugu Kikuchi (Kyushu University). (13 November 2013)
    Fangjie Zhu, Tatsuya Nishimura, Takeshi Sakamoto, Hidekazu Tomono, Hiroki Nada, Yasushi Okumura, Hirotsugu Kikuchi, and Takashi Kato,
    "Tuning the Stability of CaCO3 Crystals with Magnesium Ions for Formation of Aragonite Thin Films on Organic Polymer Templates", Chem. Asian. J., 8, 3002-3009 (2013).

  • The paper on bicontinuous cubic anhydrous proton transporting liquid crystals has been published in Journal of the American Chemical Society.
    This work is the results of collaboration with Prof. Hiroyuki Ohno (Tokyo University of Agriculture and Technology). "3D Anhydrous Proton-Transporting Nanochannels Formed by Self-Assembly of Liquid Crystals Composed of a Sulfobetaine and a Sulfonic Acid"
    Bartolome Soberats, Masafumi Yoshio, Takahiro Ichikawa, Satomi Taguchi, Hiroyuki Ohno, and Takashi Kato, J. Am. Chem. Soc., 135, 15286-15289 (2013).

  • Eight high school students visited Kato Lab from Tsuchiura Dai-Ichi High School on 6th August, 2013. They enjoyed the lecture on functional liquid crystals given by Prof. Kato and experiments.


  • Dr. Lauren Zarzar, Harvard University, USA, has joined our laboratory as the JSPS Summer Program Fellow.

  • Dr. Satoshi Kajiyama, who obtained Ph.D on March, 2013, received a student award for the oral presentation "Formation of Polymer/Inorganic Crystalline Hybrid Thin Film" at the annual meeting of the Chemical Society of Japan, held in March, 2013.


  • The work on "Mechanochromic luminescent smectic liquid crystals" is published and the contents appear as the inside front cover of Journal of Materials Chemistry C (Issue 15, 2013).
    Shogo Yamane, Yoshimitsu Sagara, Toshiki Mutai, Koji Araki, and Takashi Kato,
    "Mechanochromic Luminescent Liquid Crystals Based on a Bianthryl Moiety", J. Mater. Chem. C, 1, 2648-2656 (2013).


  • The work on "Steric effects on excimer emission for photoluminescent liquid crystals" is published and the contents appear as the back cover of Chemical Communications (Issue 37, 2013).
    Shogo Yamane, Yoshimitsu Sagara, and Takashi Kato,
    "Steric Effects on Excimer Formation for Photoluminescent Smectic Liquid-Crystalline Materials", Chem. Commun., 49, 3839-3841 (2013).


  • Prof. Jean Fréchet, Vice-President for Research, King Abdullah University of Science and Technology, Saudi Arabia, received The 2013(29th) Japan Prize for "Development of chemically amplified resist polymer materials for innovative semiconductor manufacturing process".
    The Japan Prize Website

  • Professor Cassandra Fraser, University of Virginia, USA, has joined our laboratory as the JSPS Invited Fellow.

  • Dr. Mariana Fernandes, University of Tras-os-Montes e Alto Douro (UTAD), Portugal, has joined our laboratory as a visiting scholar.

  • Special Issue "Functional Liquid Crystals" in Volume 52 of "Israel Journal of Chemistry" has been published, edited by Professor Takashi Kato (The University of Tokyo) and Professor Sandeep Kumar (Raman Research Institute, India).






  • 6 September, 2012. Professor Takashi Kato and Dr. Yoshimitsu Sagara received the Best Paper Award (Section A) of the Japanese Liquid Crystal Society for Brightly Tricolored Mechanochromic Luminescence from a Single-Luminophore Liquid Crystal: Reversible Writing and Erasing of Images(Angew. Chem. Int. Ed., 50, 9128-9132 (2011).).

  • IUMRS-ICEM 2012 Awards: Dr. Tatsuya Nishimura received an award for encouragement of research in Materials Science for the oral presentation "Development of Self-Organized Polymer/Inorganic Composites by Using Oriented Polymer Templates" at The IUMRS-International Conference on Electric Materials (IUMRS-ICEM 2012).

  • The paper on Co-organisation of Ionic liquids with Amphiphilic compound has been published in Chemical Science.
    "Co-organisation of Ionic liquids with Amphiphilic Diethanolamines: Construction of 3D Continuous Ionic Nanochannels through the Induction of Liquid-crystalline Bicontinuous Cubic Phases"
    Takahiro Ichikawa, Masafumi Yoshio, Satomi Taguchi, Junko Kagimoto, Hiroyuki Ohno and Takashi Kato
    Chem. Sci., 3, 2001-2008 (2012).

  • The paper on Magneto-actice Physical gels has been published in Chemical Science.
    "Supramolecular Approach to the Formation of Magneto-active Physical Gels"
    Yong Wu, Yuki Hirai, Yoshihide Tsunobuchi, Hiroko Tokoro, Hiroki Eimura, Masafumi Yoshio, Shin-ichi Ohkoshi and Takashi Kato
    Chem. Sci., 3, 3007-3010 (2012).

  • Associate Professor Masafumi Yoshio received Award for SPSJ Hitach Chemical Award from the Society of Polymer Science, Japan (2012) for "Construction and Alignment of Charge-Transporting Supramolecular Assemblies"

  • Professor Takashi Kato has been appointed to Editor-in-Chief of "Polymer Journal" (The Society of Polymer Science Japan / Nature Publishing Group).



  • Professor Takashi Kato has been appointed to Editorial Advisory Board of "Small", which is scientific journal published by Wiley-VCH.



  • Professor Takashi Kato has been appointed as the research supervisor of PRESTO (Precursory Research for Embryonic Science and Technology: Sakigake) research 溺olecular Technology and Creation of New Functions・of Japan Science and Technology Agency (JST). PRESTO is a proposal-oriented research promotion program which aims at cultivating the seeds of precursory science and technology by promoting basic researches.

  • High school students visited Kato Lab. (27 students from Matsuzaka High School, Mie prefecture, on 23rd July, 2012, 39 students from Kaho High School, Fukuoka prefecture, on 1st August, 2012, and 9 students from Tsuchiura Dai-Ichi High School, Ibaraki prefecture). They enjoyed the lecture on functional liquid crystals given by Prof. Kato and experiments.


  • Special Issue "Self-Assembled Materials" in Volume 44 of "Polymer Journal" has been published , edited by Professor Takashi Kato(Associate Editor, The University of Tokyo), Professor Sadahito Aoshima(Guest Editor, Osaka University) and Professor Hirotsugu Kikuchi(Guest Editor, Kyushu University). Polymer Journal is owned by the Society of Polymer Science Japan(SPSJ) and it is copublished by SPSJ and Nature Publishing Group(NGP).


  • The paper on stability of liquid-crystalline gels by photo polymerization has been published in this Special Issue.
    "Liquid-Crystalline Gels Exhibiting Electrooptical Light Scattering Properties: Fibrous Polymerized Network of a Lysine-Based Gelator Having Acrylate Moieties"
    Hiroki Eimura, Masafumi Yoshio, Yoshiko Shoji, Kenji Hanabusa, and Takashi Kato
    Polym. J., 44 , 594-599, (2012) (Special Issue).

  • 8th, June, 2012, Funded by Grat-in-Aid for Scientific Research on Innovative Areas (2010-2014) The Ministry of Education, Culture, Sports, Science and Technology (MEXT)
    FUSION MATERIALS Creative Development of Materials and Exploration of Their Function Through Molecular Control
    The 5th Symposium on Fusion Materials took place on 8 June 2012 at the Keio Collaboration Complex, Hiyoshi Campus, Keio University, Yokohama, Japan.


  • Professor Takashi Kato has been appointed to Advisory Board of ChemPlusChem, which is a scientific journal published by Wiley-VCH.


  • Professor Takashi Kato has been appointed to Editorial Board of New Journal of Chemistry (NJC). NJC is scientific journal published by the Royal Society of Chemistry.

  • Dr. Tatsuya Nishimura received Award for Encouragement of Research in Polymer Science from the Society of Polymer Science, Japan (2011) for 泥evelopment of Organic/Inorganic Hybrids by Using Macromolecular Templates"(30 May, 2012)

  • Our paper on ionic bicontinuous cubic liquid crystals has been published in Journal of the American Chemical Society.
    Induction of Thermotropic Bicontinuous Cubic Phases in Liquid-Crystalline Ammonium and Phosphonium Salts
    Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Satomi Taguchi, Feng Liu, Xiang-bing Zeng, Goran Ungar, Hiroyuki Ohno, and Takashi Kato
    J. Am. Chem. Soc., 134, 2634-2643 (2012).

  • Our paper on photoluminescence ionic liquid crystals has been published in Journal of the American Chemical Society.
    Full-Color Tunable Photoluminescent Ionic Liquid Crystals Based on Tripodal Pyridinium, Pyrimidinium, and Quinolinium Salts
    Kana Tanabe, Yuko Suzui, Miki Hasegawa, and Takashi Kato
    J. Am. Chem. Soc., 134, 5652-5661 (2012).

e-mail : kato@chiral.t.u-tokyo.ac.jp


Link
Grant-in-Aid for Scientific Research on Innovative Areas from the Ministry of Education, Culture, Sports, Science and Technology (MEXT)
Fusion Materials: Creative Development of Materials and Exploration of Their Function through Molecular Control

Funding Program for World-Leading Innovative R&D on Science and Technology
Innovative Basic Research Toward Creation of High-performance Battery

Gordon Research Conference
International Liquid Crystal Conference (ILCC)

FusionMater FIRST G-COE


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