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Showing 1–6 of 6 results
Advanced filters: Author: Daigo Miyajima Clear advanced filters

  • A fluorescent molecule is described that does not follow Hund’s rule and instead shows singlet and triplet excited states with inverted energy levels, leading to high-efficiency OLEDs with potential implications for optoelectronic devices.

    • Naoya Aizawa
    • Yong-Jin Pu
    • Daigo Miyajima
    ResearchOpen Access
    Nature
    Volume: 609, P: 502-506

  • The solvent-free conversion of phthalonitrile derivatives into phthalocyanines in the bulk is described, involving a reductive cyclotetramerization step and the formation of one-dimensional single-crystalline fibres. This solvent-free autocatalytic supramolecular polymerization may enable for a sustainable fabrication of multi-block supramolecular copolymers.

    • Zhen Chen
    • Yukinaga Suzuki
    • Takuzo Aida
    Research
    Nature Materials
    Volume: 21, P: 253-261

  • An attractive feature of supramolecular polymers is their reversibility — they typically depolymerize upon heating. Now, in the presence of a scavenger molecule, a metalloporphyrin derivative bearing eight amide-containing side chains has been shown to undergo supramolecular polymerization on heating as well as cooling through π-stacking and multivalent hydrogen-bonding interactions.

    • Kotagiri Venkata Rao
    • Daigo Miyajima
    • Takuzo Aida
    Research
    Nature Chemistry
    Volume: 9, P: 1133-1139

  • Films based on π-stacked carbon nitride polymers are shown to bend rapidly and jump up to 10,000 times their thickness as a result of minimal variations—induced by changes in the ambient humidity or temperature—of absorbed water.

    • Hiroki Arazoe
    • Daigo Miyajima
    • Takuzo Aida
    Research
    Nature Materials
    Volume: 15, P: 1084-1089

  • Vertical alignment of polymers on surfaces is challenging due to their flexibility and tendency to arrange on horizontal planes. Here, the authors report a design principle allowing polymers to be arranged into 2D homeotropic orientations by using long-range dipole-dipole interactions and hot-pressing on Teflon sheets.

    • Zhen Chen
    • Yi-Tsu Chan
    • Takuzo Aida
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-9

  • Dll4/Notch1 signal promotes the progression of HCC, while Jag1/Notch2 signal antagonistically suppresses it in murine chemical hepatocarcinogenesis. Nakano et al. report that two distinct Notch signals regulate the progression of hepatocellular carcinoma (HCC) using tissue specific loss of function mouse mutants. They find Dll4/Notch1 signal promotes HCC progression, while the Jag1/Notch2 signal antagonistically suppresses it.

    • Yasuhiro Nakano
    • Sachie Nakao
    • Yutaka Inagaki
    ResearchOpen Access
    Communications Biology
    Volume: 5, P: 1-10