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Nano- and Microsized Cubic Gel Particles from Cyclodextrin Metal–Organic Frameworks

Authors

  • Yuki Furukawa,

    1. Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan)
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  • Takumi Ishiwata,

    1. Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan)
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  • Prof. Dr. Kouta Sugikawa,

    1. Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Motooka 644, Fukuoka, Fukuoka 819-0395 (Japan)
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  • Dr. Kenta Kokado,

    1. Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan)
    2. Department of Chemistry, Graduate School of Science, Hokkaido University (Japan)
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  • Prof. Dr. Kazuki Sada

    Corresponding author
    1. Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan)
    2. Department of Chemistry, Graduate School of Science, Hokkaido University (Japan)
    • Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan)
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  • Y.F. thanks Hokkaido University Global COE Program “Catalysis as the Basis for Innovation in Materials Science”. This work is supported by a Ministry of Education, Culture, Sports, Science and Technology of Japan for Grant-in-Aid for K.S. for 23350048. We appreciate Prof. M. Kato and Assoc. Prof. H.-C. Chang for XRPD measurements. The SEM observation was carried out at the OPEN FACILITY, Hokkaido University Sousei Hall.

Abstract

original image

Sweet cube o' mine: Bottom-up control of gel particles has been regarded as a great challenge. By employing internal cross-linking of cyclodextrin metal–organic frameworks, cubic sugar gels were formed with sharp edges that reflect the shape of the crystals. This enabled the fabrication of shape- and size-controlled polymer gels from porous crystals (see picture).

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