News
  • 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 formation 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, Wiley-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., 10, 1643-1641 (2014).

  • 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 “Development of organic/inorganic hybrids by using Mg2+ ions” is published in Chemistry - an Asian Journal, Wiley-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 “Molecular Technology and Creation of New FunctionsEof 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 “Development 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).

  • receivers CSJ (The Chemical Society of Japan) Chemical Festa Awards 2011:
    Mr. Satoshi Kajiyama (Graduate Student, right) received a poster award for the poster presentation "Preparation of CaCO3 and SrCO3 Thin Films and Their Orientation Induced by Effects of Organic Polymers" and
    Mr. Tomohiro Shimizu (Graduate Student, left) also received a poster award for the poster presentation "Self-Organization and Electrochromism of π-Conjugated Molecules Having Oxyethylene Moieties" at The 1st CSJ Chemical Festa (21st December, 2011).

  • Dr. Yoshimitsu Sagara (former Ph.D. student in Kato Group) received "Award for Encouragement of Research" for the lecture "Tricolored Mechanochromic Luminescent Liquid Crystal Having a Single Luminophore" at 21st MRS-Japan Academic Symposium (11th January 2012).
    Link to the announcement.

  • NPG Asia Materials featured our tri-colored photoluminescent liquid crystal developed by Dr. Sagara and Prof. Kato (Yoshimitsu Sagara and Takashi Kato, Angew. Chem. Int. Ed., 50, 9128 (2011)) in the Research Highlight of its website as Luminescent materials: Three for two (5th December 2011).
    Link to the Article.

  • Selected as ACS Noteworthy Chemistry: The American Chemical Society(ACS) featured our tri-colored photoluminescent liquid crystal developed by Dr. Sagara and Prof. Kato (Yoshimitsu Sagara and Takashi Kato, Angew. Chem. Int. Ed., 50, 9128 (2011)) in the Noteworthy Chemistry of its website as A single luminophore emits three colors of visible light(24th October 2011).
    Link to the Article.

  • Dr. Takeshi Sakamoto has become Assistant Professor of Kato Laboratory from 16th October, 2011.

  • Dr. Tasuku Nakajima (Research Fellow of JSPS) was appointed as Assistant Professor at Hokkaido University on 1st October, 2011.

  • Our paper on a π-conjugated liquid crystal has been published in Journal of the American Chemical Society
    Electro-Functional Octupolar π-Conjugated Columnar Liquid Crystals
    Takuma Yasuda, Tomohiro Shimizu, Feng Liu, Goran Ungar, and Takashi Kato,
    J. Am. Chem. Soc.,133,13437 (2011).
    Link to the Abstract

  • Chemical and Engineering News (C&E News) published by the American Chemical Society featured our tri-colored photoluminescent liquid crystal in the "Science & Technology Concentrates as Liquid Crystal Shines In Three Colors"
    (15 August 2011 | Vol. 89 Issue 33).

  • New Scientist reported on our Tricolored Photoluminescent Liquid Crystal in the “Short Sharp Science as an article titled "Ah, the beauty of photoluminescent ginkgo leaves"(Published online 05 August 2011) .
    Link to the Article.

  • Chemistry World published by the Royal Society of Chemistry featured our stimuli-responsive tricolored luminescent liquid crystal in the website as a news article titled "Liquid crystals rearrange to glow in three colours"(Published online 03 August 2011).
    Link to the Article.

  • Our paper on a stimuli-responsive tricolored photoluminescent liquid crystal has been published in Angewandte Chemie International Edition.
    It has been selected as a "Hot Paper"
    Yoshimitsu Sagara, Takashi Kato, Brightly Tricolored Mechanochromic Luminescence from a Single-Luminophore Liquid Crystal: Reversible Writing and Erasing of Images
    inside coverAngew. Chem. Int. Ed.,50,9128 (2011).This paper is press-released (Published online 03 August 2011). Link to the Press Release
    Link to the Abstract.











  • Visits of High School Students

    Students of Tsuchiura Dai-Ichi High School visited Kato Lab. on 3rd August 2011.




  • A paper on the self-organized photoimaging of CaCO3 thin film has been published on Angew. Chem. Int. Ed.
    "Photoimaging of Self-Organized CaCO3/Polymer Hybrid Films by Formation of Regular Relief and Flat Surface Morphologies" T. Sakamoto, Y. Nishimura, T. Nishimura, T. Kato, Angew. Chem. Int. Ed., 50, 5856 (2011).

  • Dr. Ayae Sugawara Narutaki (Alumni member) received Award for Encouragement of Research in Polymer Science from the Society of Polymer Science, Japan (2011)

  • A personal account of Dr. Tatsuya Nishimura was introduced in Growing Polymers on KOBUNSHI HIGH POLYMERS, JAPAN, 60, 401, (2011).

  • Students of Junior High School at Komaba, University of Tsukuba visited Kato Lab. on 18th May 2011.

  • Prof. Takashi Kato has published an Author Profile in Angewandte Chemie International Edition.
  • Angew. Chem. Int. Ed.,50,4740 (2011).
    Link to Abstract.

  • The work on "thin films of hydroxyapatite" is selected as a "Editor's Choice Article"
    Tatsuya Nishimura, Hirotaka Imai, Yuya Oaki, Takeshi Sakamoto, Takashi Kato,
    "Preparation of Thin-film Hydroxyapatite/Polymer Hybrids"
    Chem. Lett., 40, 458-460 (2011).
  • Link to Editor's Choice Articles.

  • A paper on "CaCO3/Liquid Crystalline Chitin-Whisker Hybrid Materials" in Polymer Journals has been featured in Polymers, 60, 291 (2011), (Society of Polymer Science, Japan) as "Hot Topics".
    Yuya Yamamoto, Tsuguyuki Saito, Tatsuya Nishimura, Takashi Kato,
    "CaCO3/Chitin-whisker Hybrids: Formation of CaCO3 Crystals in Chitin-based Liquid-crystalline Suspension",
    Polym. J., 42, 583-586 (2010).
  • Link to the e-Book.














  • Dr. Masafumi Yoshio has been promoted to an associate professor of the Department of Chemistry & Biotechnology, School of Engineering, The University of Tokyo from 16th March, 2011.
    ?????
    Dr. M. Yoshio

  • Dr. Kyosuke Isoda (former PhD course student in Kato laboratory) has joined Tokyo University of Science as an assistant professor from 1st April, 2011.

  • Dr. Takuma Yasuda (former assistant professor in Kato Group, currently an associate professor of Kyushu Univ.) received the Young Researchers Award from the Japanese Liquid Crystal Society.(2010)

  • The new project, grant-in-aid for scientific research from the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) on innovative areas of "Fusion Materials: Creative Development of Materials and Exploration of Their Function through Molecular Control"(no. 2206, Project leader: Takashi Kato) has launched.
    Link to http://www.fusion-materials.org/










  • The paper on "3D Ion Channel Based on Bicontinuous Cubic Polymer Structures" has been published in Journal of the American Chemical Society.
    Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Junko Kagimoto, Hiroyuki Ohno, and Takashi Kato
    "3D Interconnected Ionic Nano-Channels Formed in Polymer Films: Self-Organization and Polymerization of Thermotropic Bicontinuous Cubic Liquid Crystals", J. Am. Chem. Soc.,133, 2163-2169 (2011).
    link to Abstract.This Study was supported by the Funding Program for World-Leading Innovative R&D on Science and Technology Innovative Basic Research Toward Creation of High-performance Battery from teh Cabinet Office, Government of Japan

  • Dr. Takahiro Ichikawa joined to Tokyo University of Agriculture and Technology as an assistant professor from 1st October, 2010.

  • Prof. Takashi Kato has joined the advisory editorial board of "Chemical Science", a new journal publised by the Royal Society of Chemistry in 2010. Link to Journal Home

  • A paper on "CaCO3 /Liquid Crystalline Chitin-Whisker Hybrid Materials" in Polymer Journals has been selected as "Polymer Journal Highlights 2010".
    Yuya Yamamoto, Tsuguyuki Saito, Tatsuya Nishimura, Takashi Kato, " CaCO3 /chitin-whisker hybrids: formation of CaCO3 crystals in chitin-based liquid-crystalline suspension ", Polym. J., 42, 583-586 (2010).
    link to Abstract

  • Visits of High School Students
    High school students visited Kato Lab. for their field trips. (27 students from Ichikawa High School in Chiba prefecture on July 23rd, 2010, 40 students from Matsuzaka High School in Mie prefecture on July 26th, 2010, 46 students from Urawa High School in Saitama prefecture on July 30th, 2010) For each visit, Prof. Kato presented a lecture about "liquid crystals" then to understand material properties the students prepared liquid crystals and observed them on the microscopes. They enjoyed the experiments and work hard, and some of them asked excellent questions to Prof. Kato and the graduate students of Kato Lab.




  • Prof. Takashi Kato received The Award of the Society of Polymer Science, Japan (2009) for "Development of Functional Polymer Assemblies by the Control of Molecular Order and Interactions".

  • The website of NPG Asia Materials features the paper on the results of "Redox-Switching of A Liquid-Crystalline Rotaxane" as an article entitled "Molecular switches: Re-colouring with redox" (Published online 19 April 2010): Takuma Yasuda, Kana Tanabe, Toru Tsuji, Karla K. Coti, Ivan Aprahamian, J. Fraser Stoddart, and Takashi Kato, "A Redox-Switchable [2]Rotaxane in a Liquid-Crystalline State",
    Chem. Commun., 46, 1224-1226 (2010). Link to Abstract
    The website of NPG Asia Materials is here.

  • An account paper entitled ”Macromolecular Templating for the Formation of Inorganic-Organic Hybrid Structures " has been published in February 2010 issue of MRS Bulletin on "Lessons from Nature-Biomimetic Approaches to Minerals with Complex Structures" (Guest Eds.: N.A.J.M. Sommerdijk and H. Cölfen). This review is focussed on the formation of inorganic-organic hybrid materials through an approach inspired by biomineralization.
    Takashi Kato, Takeshi Sakamoto, and Tatsuya Nishimura, MRS Bulletin, 35, 127-132 (2010).
    link to Abstract

  • The paper on "Liquid-Crystalline π-Conjugated Oligothiophenes", Adv. Funct. Mater., 19, 411-419 (2009) has been selected as a Fast Breaking Paper in Materials Science by Thomson Reuters, USA. The author interview is also published on the Science Watch website.









    Link to Author Commentaries and Abstract

  • Dr. Tatsuya Nishimura was selected to present the Young Scholar Lecturer of CSJ (Chemical Society of Japan) 2010.
    The title of his lecture: Development of Organic/Inorganic Hybrids through Macromolecular Templates with Controlled Structure
    Date: March 27 (2G5-27)
  • A paper on "Redox-Switching of A Liquid-Crystalline Rotaxane" has been published in Chemical Communications and selected as a Hot Article (January 2010). This result has been obtained by collaboration with Professor J. Fraser Stoddart (Northwestern University, USA).
    Takuma Yasuda, Kana Tanabe, Toru Tsuji, Karla K. Coti, Ivan Aprahamian, J. Fraser Stoddart, and Takashi Kato, "A Redox-Switchable [2]Rotaxane in a Liquid-Crystalline State",
    Chem. Commun., 46, 1224-1226 (2010).

  • A review paper on "Functional Columnar Liquid Crystals" in Chemical Communications has been selected as "Most Cited Feature Article Top 10, 2009".
    Takashi Kato, Takuma Yasuda, Yuko Kamikawa, and Masafumi Yoshio, "Self-Assembly of Functional Columnar Liquid Crystals",
    Chem. Commun., 2009, 729-739.











  • A study on "An Effective Strategy for the Macroscopic Alignment of π-Gels" is on the inside front cover of Advanced Materials (October 26, 2009 issue).This work has been done by collaboration with Professor Ayyappanpillai Ajayaghosh (National Institute for Interdisciplinary Science and Technology, India ).
    Yuki Hirai, S. Santhosh Babu, Vakayil K. Praveen, Takuma Yasuda, Ayyappanpillai Ajayaghosh, and Takashi Kato, "Anisotropic Self-Assembly of Photoluminescent Oligo(p-phenylenevinylene) Derivatives in Liquid Crystals: An Effective Strategy for the Macroscopic Alignment of π-Gels", Adv. Mater., 21, 4029-4033 (2009).















  • A Perspective (a focused review) entitled "Mechanically induced luminescence changes in molecular assemblies" has been published in Nature Chemistry. The Perspective describes various piezochromic luminescent materials, which exhibit changes in luminescent color by mechanical stimuli.
    Yoshimitsu Sagara and Takashi Kato, "Mechanically induced luminescence changes in molecular assemblies",
    Nature Chemistry, 1, 605 (2009).
    Link to Abstract









  • Dr. Yoshimitsu Sagara received a poster award for the poster presentation "Stimuli-Responsive Luminescent Liquid-Crystals" at The 18th Polymer Material Forum.

  • Professor Takashi Kato has received Molecular Science Forum Lecture Professorship from Institute of Chemistry, Chinese Academy of Science.
    October 14, 2009 [Photo]

  • CSJ (The Chemical Society of Japan) Kanto Branch Poster Presentation Awards 2009:
    Ms. Kana Tanabe received a poster award for the poster presentation "Development of Liquid-Crystalline Cyclophanes Having Ionic Moieties", and
    Mr. Ken Toyoda also received a poster award for the poster presentation "Macroscopically Ordered Thin-Film Formations of Strontium Carbonate on an Ordered Chitin Matrix" at The 3rd Meeting of The Chemical Society of Japan, Kanto Branch. (September, 2009)

  • The work on "Electro-Active Truxene-Based Liquid Crystals" is selected as a VIP paper and is on the Cover Picture of Chemistry – An Asian Journal (October 5, 2009 issue).
    Kyosuke Isoda, Takuma Yasuda, and Takashi Kato, "Truxene-Based Columnar Liquid Crystals: Self-Organized Structures and Electro-Active Properties", Chem. Asian J., 4, 1619-1625 (2009).













  • Our collaborator, Professor Hiromichi Nagasawa at Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo has published a paper on biomineralization in Science. A new protein for nacre formation has been identified.
    Michio Suzuki, Kazuko Saruwatari, Toshihiro Kogure, Yuya Yamamoto, Tatsuya Nishimura, Takashi Kato, Hiromichi Nagasawa, "An Acidic Matrix Protein, Pif, Is a Key Macromolecule for Nacre Formation", Science, 325, 1388-1390 (2009).
    (Related collaboration on Bio-inspired Hybrids)

  • A review paper on liquid-crystalline semiconductors has been published in Polymer Journal. This paper is a SPSJ Hitachi Chemical Award Account.
    Masahiro Funahashi, ”Development of Liquid-Crystalline Semiconductors with High Carrier Mobilities and Their Application to Thin-Film Transistors”, Polym. J., 41, 459-469 (2009).
    Link to Abstract Cover Image

  • Dr. Takuma Yasuda received the CSJ Presentation Award 2009 for the oral presentation "Structural Control and Electro- and Photo-Functions of π-Conjugated Liquid-Crystalline Materials" at the annual meeting of the Chemical Society of Japan, 2009.

  • A review paper on "Electro- and Photoactive Molecular Assemblies of Liquid Crystals and Physical Gels" has been published in Chemistry Letters.
    Takashi Kato, Kana Tanabe, "Electro- and Photoactive Molecular Assemblies of Liquid Crystals and Physical Gels", Chem. Lett., 38, 634 (2009). [PDF]













  • The work on "Liquid-Crystalline π-Conjugated Oligothiophenes " is on the inside front cover of Advanced Functional Materials (February 10, 2009 issue).
    Takuma Yasuda, Hirotaka Ooi, Jun Morita, Yusuke Akama, Kiyoshi Minoura, Masahiro Funahashi, Takeshi Shimomura, and Takashi Kato, "π-Conjugated Oligothiophene-Based Polycatenar Liquid Crystals: Self-Organization and Photoconductive, Luminescent, and Redox Properties", Adv. Funct. Mater., 19, 411-419 (2009).












  • A review paper on "Functional Columnar Liquid Crystals" has been published in Chemical Communications:
    Takashi Kato, Takuma Yasuda, Yuko Kamikawa, and Masafumi Yoshio, "Self-Assembly of Functional Columnar Liquid Crystals", Chem. Commun., 2009, 729-739.











  • IUMRS-ICA 2008 Awards: Dr. Yuya Oaki received an award for encouragement of research in Materials Science for the oral presentation "Spontaneous Formation of Nanosegregated Amorphous Composites Consisting of Calcium Carbonate and an Organic Polymer", and
    Ms. Kana Tanabe also received an award for encouragement of research in Materials Science for the poster presentation "Development of Photoluminescent Liquid Crystals Having Pyridinium Moieties" at The IUMRS-International Conference in Asia 2008.

  • Prof. Takashi Kato has joined the Advisory Board of Journal of Materials Chemistry publised by the Royal Society of Chemistry on 2008.

  • The paper on the results of "An Electrochromic Nanostructured Liquid Crystal Consisting of π-Conjugated and Ionic Moieties; is featured in the website of NPG Asia Materials, produced by NPG Nature Asia Pacific and the Tokyo Institute of Technology, as "Electrochromism: Colorful liquid crystals" (Published online September 2008): Sanami Yazaki, Masahiro Funahashi, and Takashi Kato, "An Electrochromic Nanostructured Liquid Crystal Consisting of π-Conjugated and Ionic Moieties"J. Am. Chem. Soc., 130, 13206 (2008).
    The website of NPG Asia Materials is here.

  • Prof. Takashi Kato received the JLCS Award for "Development of Anisotropic Functional Liquid-Crystalline Materials Formed through Noncovalent Interactions". (JLCS: Japanese Liquid Crystal Society)(September, 2008)

  • Mr. Yoshimitsu Sagara received a student award for the poster presentation "A Stimuli-Responsive Pyrene-based Liquid Crystal: Change of the Photoluminescent Color on the Shear-Induced Phase Transition" at the annual meeting of the Japanese Liquid Crystal Society of Japan, 2008.

  • Associate Prof. Masahiro Funahashi received the SPSJ Hitachi Chemical Award 2008 for "Development of Liquid Crystalline Semiconductors with High Carrer Mobility and Their Application to Field-Effect Transistors". (SPSJ: The Society of Polymer Science,Japan)(September, 2008)

  • The paper on the results of "Liquid-Crystalline Polymer/Inorganic Composites Inspired by Biomineralization" is featured in the website of NPG Asia Materials, produced by NPG Nature Asia Pacific and the Tokyo Institute of Technology, as "Orderly liquid crystals" (Published online 07 May 2008): Tatsuya Nishimura, Takahiro Ito, Yuya Yamamoto, Masafumi Yoshio, and Takashi Kato, "Macroscopically Ordered Polymer/CaCO3 Hybrids Prepared by Using a Liquid-Crystalline Template", Angew. Chem. Int. Ed., 47, 2800-2803 (2008).
    The website of NPG Asia Materials is here.

  • Structure and Bonding, Vol. 128, "Liquid Crystalline Functional Assemblies and Their Supramolecular Structures" (Volume editor: Takashi Kato) has been published by Springer. (See details)

  • Mr. Takahiro Ichikawa (graduate student) received a student award for the oral presentation "Formation of Nano-Ion Channel Networks by the Self-Organization of Liquid-Crystalline Ammonium Salts" at The 18th MRS-Japan Academic Symposium (December, 2007).

  • Dr. Emi Uchida received a poster award for the poster presentation "Photoinduced Orientation in Photoreactive Hydrogen-Bonding Liquid Crystalline Polymers and Liquid Crystal Alignment on the Resultant Films", and
    Mr. Harutoki Shimura received the poster award for the poster presentation "Supramolecular Columnar Liquid Crystals Incorporating Ionic Liquids" at The 1st Meeting of The Chemical Society of Japan, Kanto Branch. (The manuscript on this work is published : "Non-Covalent Approach to One-Dimensional Ion Conductors: Enhancement of Ionic Conductivities in Nanostructured Columnar Liquid Crystals", J. Am. Chem. Soc., 130, 1759 (2008).)

  • Ion-conductors having three-dimensional nano-channels have been successfully prepared, using bicontinuous liquid-crystalline nanostructures.
    Takahiro Ichikawa, Masafumi Yoshio, Atsushi Hamasaki, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, "Self-Organization of Room-Temperature Ionic Liquids Exhibiting Liquid-Crystalline Bicontinuous Cubic Phases: Formation of the Network of Nano-Ion Channels", J. Am. Chem. Soc., 129, 10662 (2007).

  • We succeeded in the preparation of liquid-crystalline (LC) interlocked molecules. LC catenane and LC rotaxane form ordered bulk states. These results have been obtained by collaboration with Professor J. Fraser Stoddart (UCLA, USA) and Professor Jean-Pierre Sauvage (University Louis Pasteur, France).
    Ivan Aprahamian, Takuma Yasuda, Taichi Ikeda, Sourav Saha, William R. Dichtel, Kyosuke Isoda, Takashi Kato, and J. Fraser Stoddart, "A Liquid-Crystalline Bistable [2]Rotaxane", Angew. Chem. Int. Ed., 46, 4675 (2007).
    Etienne D. Baranoff, Julie Voignier, Takuma Yasuda, Valérie Heitz, Jean-Pierre Sauvage, and Takashi Kato, "A Liquid-Crystalline [2]Catenane and Its Copper(I) Complex", Angew. Chem. Int. Ed., 46, 4680 (2007).

  • Mr. Masayuki Kuramoto received a student award for the poster presentation "Effects of the Peptide-Backbone Structures on the Self-Assembled Structures of Liquid-Crystalline Oligopeptides" at the annual meeting of the Japanese Liquid Crystal Society of Japan, 2007.

  • Dr. Masafumi Yoshio received the Young Researchers Award from the Japanese Liquid Crystal Society.

  • The paper "Columnar Liquid-Crystalline Imidazolium Salts. Effects of Anions and Cations on Mesomorphic Properties and Ionic Conductivities" on the results of "Anisotropically Ion-Conductive Liquid-Crystals" has been published as a Selected Paper in Bulletin of the Chemical Society of Japan (September, 2007 issue).
    Masafumi Yoshio, Takahiro Ichikawa, Harutoki Shimura, Takayoshi Kagata, Atsushi Hamasaki, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato
    Bull. Chem. Soc. Jpn., 80, 1863-1841 (2007). [PDF]

  • T-LAB 2007"Kougaku Taiken Labo ", an event for the high school students to experience technology organized by School of Engineering, was held at our Hongo campus on August 25. In the event, Professor Kato had a lecture on liquid crystals. Then high school students visited our laboratory, and experienced an experiment on liquid crystals.(Pamphlet)

  • Dr. Tsukasa Hatano received the poster award for the poster presentation "Phosphine Oxide Derivatives as Building Blocks of Non-Conventional Shaped Liquid Crystals", and
    Mr. Harutoki Shimura received the poster award for the poster presentation "One-dimensionally Ion-conductive Liquid-crystalline Materials" at The 2nd Gunma International Symposium on Chemistry(GIS2007).

  • Dr. Emi Uchida received the SPSJ Award for the Outstanding Paper in Polymer Journal sponsored by ZEON for the paper "Influence of Wavelength of Light on Photoinduced Orientation of Azobenzene-Containing Polymethacrylate Film" on the research in University of Hyogo.

  • Mr. Takeshi Sakamoto (graduate student) received a student award for the oral presentation "Pattern Formation of Calcium Carbonate Thin Film Crystals by Photo-Control" at the annual meeting of the Chemical Society of Japan, 2007.

  • Dr. Masahiro Funahashi joined in our laboratory as an associate professor on February 16, 2007.

  • The paper on 1993, "Hydrogen-Bonded Liquid Crystals Built from Hydrogen-Bonding Donor and Acceptors. Infrared Study on the Stability of the Hydrogen Bond between Carboxylic Acid and Pyridyl Moieties" is republished in the Liquid Crystals(November 2006 issue: 20th anniversary special issue).
    Takashi Kato, Toshiyuki Uryu, Fumiko Kaneuchi, Chihiro Jin, and Jean M. J. Fréchet, Liq. Cryst. (Special Issue: 20th Anniversary Issue), 33, 1434-1437 (2006).
    A commentary paper is also published.
    "Development of Supramolecular Hydrogen-Bonded Liquid Crystals and its Impact on Liquid-Crystalline and Materials Science",
    Takashi Kato and Jean M. J. Fréchet, Liq. Cryst. (Special Issue: 20th Anniversary Issue), 33, 1429-1433 (2006).

  • The work on "Spiropyran-Based Columnar Liquid Crystals" is on the inside cover of Chemical Communications (November, 2006 issue):
    Boon-Hooi Tan, Masafumi Yoshio, Takahiro Ichikawa, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, "Spiropyran-Based Liquid Crystals: The Formation of Columnar Phases via Acid-Induced Spiro-Merocyanine Isomerisation", Chem. Commun., 2006, 4703-4705.
    [COVER IMAGE]

  • Dr. Takuma Yasuda received the poster award at the Japanese Liquid Crystal Conference 2006.

  • Dr. Masaya Moriyama has been promoted to an associate professor of Department of Applied Chemistry, Faculty of Engineering, Oita University.

  • The paper "Reversible On-Off Photoswitching of Hydrogen Bonding for Self-Assembled Fibers Comprising Physical Gels" on the results of "Photo-Responsive Physical Gels" has been published as a Selected Paper in Bulletin of the Chemical Society of Japan (June, 2006 issue).
    Masaya Moriyama, Norihiro Mizoshita, and Takashi Kato
    Bull. Chem. Soc. Jpn., 79, 962-964 (2006). [PDF]
  • The work on "A Columnar Liquid Crystal Based on Triphenylphosphine Oxide" is on the cover of Chemical Communications (January, 2006 issue):
    Tsukasa Hatano and Takashi Kato, " A Columnar Liquid Crystal Based on Triphenylphosphine Oxide - Its Structural Changes upon Interaction with Alkaline Metal Cations ", Chem. Commun., 2006, 1277-1279.
    [COVER IMAGE]

  • A review paper on "Functional Supramolecular Liquid-crystalline Materials" has been published in Angewandte Chemie International Edition:
    Takashi Kato, Norihiro Mizoshita and Kenji Kishimoto, "Functional Liquid-Crystalline Assemblies: Self-Organized Soft Materials", Angew. Chem. Int. Ed., 45, 38-68 (2006).
    [TITLE IMAGE]

  • Professor Takashi Kato received the 1st JSPS PRIZE (Chemistry).
    [JSPS PRIZE program outline]

  • The work on "Bistable Nematic Liquid Crystal Gels" is on the cover of Advanced Materials (March, 2005 issue): Norihiro Mizoshita, Yuki Suzuki, Kenji Hanabusa, and Takashi Kato, "Bistable Nematic Liquid Crystals with Self-Assembled Fibers", Adv. Mater., 17, 692-696 (2005).
    [COVER IMAGE]

  • The paper on the results of collaboration with Prof. Makoto Fujita is selected as a VIP Paper in Chemistry - A European Journal (April 8, 2005 issue).

  • The paper on the results of "Thermotropic Liquid-Crystalline Oligopeptides" is selected as a Hot Paper in Organic & Biomolecular Chemistry and is introduced in Chemical Science (March, 2005 issue)
    The article in Chemical Science is here.

  • The work on "Thermotropic Liquid-Crystalline Oligopeptides" is on the cover of Organic & Biomolecular Chemistry (February 24, 2005 issue): Masayuki Nishii, Toru Matsuoka, Yuko Kamikawa, and Takashi Kato, "Thermotropic Liquid-Crystalline Peptide Derivatives: Oligo(glutamic acid)s Forming Hydrogen-Bonded Columns", Org. Biomol. Chem., 3, 875-880 (2005).
    [COVER IMAGE]

  • The work on "Self-Assembly of Folic Acid Derivatives" is on the cover of Chemistry - A European Journal (December 3, 2004 issue): Yuko Kamikawa, Masayuki Nishii, and Takashi Kato, "Self-Assembly of Folic Acid Derivatives: Induction of Supramolecular Chirality by Hierarchical Chiral Structures", Chem. Eur. J., 10, 5942-5951 (2004).
    [COVER IMAGE]

  • The paper on the results of "One Dimensional Assembly of Ionic Liquids" is introduced in Chemical & Engineering News(February 2, 2004 issue) and Nature Materials (March 1, 2004 issue): Masafumi Yoshio, Tomohiro Mukai, Hiroyuki Ohno, and Takashi Kato, "One-Dimensional Ion Transport in Self-Organized Columnar Ionic Liquids", J. Am. Chem. Soc., 126, 994-995 (2004).
    The article in Nature Materials is here.

  • Professor Takashi Kato received the 17th IBM Japan Science Award (Chemistry).
    [PRESS RELEASE] (in Japanese)

  • The paper on the results of "Patterned Calcium Carbonate Thin Films" is selected as a "Hot Paper" in Angewandte Chemie: Ayae Sugawara, Takeshi Ishii, and Takashi Kato, "Self-Organized Calcium Carbonate with Regular Surface-Relief Structures", Angew. Chem. Int. Ed., 42, 5299-5303 (2003).

  • The work on "Development of a New Urea Gelator" is on the cover of Organic & Biomolecular Chemistry (October 7, 2003 issue): Kazuhiro Yabuuchi, Emmanuel Marfo-Owusu, and Takashi Kato, "A New Urea Gelator: Incorporation of Intra- and Intermolecular Hydrogen Bonding for Stable 1D Self-Assembly", Org. Biomol. Chem., 1, 3464-3469 (2003).
    [COVER IMAGE]

  • The work on "Liquid Crystal Gels" is on the cover of Advanced Functional Materials (April, 2003 issue): Norihiro Mizoshita, Kenji Hanabusa, and Takashi Kato, "Fast and High-Contrast Electro-optical Switching of Liquid-Crystalline Physical Gels: Formation of Oriented Microphase-Separated Structures", Adv. Funct. Mater., 13, 313-317 (2003).
    [COVER IMAGE]
  • "Liquid crystals" issue (Subject Editor: Takashi Kato) has been published in Current Opinion in Solid State and Materials Science, 6 (6), pp. 513-587 (2002). It collects 8 review papers on advanced liquid crystal materials.
    [Editorial Overview]

  • The paper on the results of collaboration with Prof. Eiichi Nakamura (School of Science) was published in Nature (October 17, 2002 issue): M. Sawamura, K. Kawai, Y. Matsuo, K. Kanie, T. Kato, and E. Nakamura, "Stacking of Conical Molecules with a Fullerene Apex into Polar Columns in Crystals and Liquid Crystals", Nature, 419, pp.702-705 (2002).
    (Please also see Chem. & Eng. News, October 21, 2002 issue, p.15)

  • A paper has been published in Science (March 29, 2002 issue): T. Kato, "Self-Assembly of Phase-Segregated Liquid Crystal Structures", Science, 295, pp.2414-2418 (2002).
    You can read the content: [ABSTRACT]/[FULL TEXT]

  • The work on "Layered Ionic Liquids" is on the cover of Advanced Materials (March 4, 2002 issue): Masafumi Yoshio, Tomohiro Mukai, Kiyoshi Kanie, Masahiro Yoshizawa, Hiroyuki Ohno, and Takashi Kato, "Layered Ionic Liquids: Anisotropic Ion Conduction in New Self-Organized Liquid-Crystalline Materials", Adv. Mater., 14, pp.351-354 (2002).
    [COVER IMAGE]

  • The work on "Liquid Crystal Folic Acids" is on the cover of Macromolecular Rapid Communications (July 30, 2001 issue): Takashi Kato, Norihiro Mizoshita, and Kiyoshi Kanie, "Hydrogen-Bonded Liquid Crystalline Materials: Supramolecular Polymeric Assembly and the Induction of Dynamic Function", Macromol. Rapid Commun., 22, pp.797-814 (2001).
    [COVER IMAGE]

  • The work on "Liquid Crystal Gels" is on the cover of Advanced Materials (June 2, 1998 issue): T. Kato, T. Kutsuna, K. Hanabusa, and M. Ukon, "Gelation of Room Temperature Liquid Crystals by the Association of a trans-1,2-Bis(amino)cyclohexane Derivative", Adv. Mater., 10, pp.606-608 (1998).
    [COVER IMAGE]

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