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Showing 1–4 of 4 results
Advanced filters: Author: Joan Gimenez-Dejoz Clear advanced filters

  • The delivery of genetic material into plants is challenging due to the cell wall barrier. Here, the authors hybridize polymer-coated carbon nanotubes with functional peptides to deliver plasmid DNA cargo into intact plant mitochondria for transient expression and homologous recombination at high efficiency.

    • Simon Sau Yin Law
    • Geoffrey Liou
    • Keiji Numata
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-13

  • Natural rubber is a biopolymer with unique features widely used in many industrial applications. It is composed mainly by large high-molecular-weight polymeric chains of cis-1,4-polyisoprene with distinct α-terminal groups, which are thought to give natural rubber its specific features. The second most abundant molecule in natural rubber is L-quebrachitol, a cyclic polyol which function is not clear. Here we studied using atomistic simulations the interaction of L-quebrachitol with the hydrophobic natural rubber and its interaction with specific α-terminal groups, suggesting it binds preferentially with specific α-terminal groups.

    • Joan Gimenez-Dejoz
    • Katsuhiko Tsunoda
    • Keiji Numata
    ResearchOpen Access
    Polymer Journal
    Volume: 54, P: 229-233

  • Polypeptides containing periodic aromatic residues, 4-aminobenzoic acid (Abz), in their main chains were synthesized via papain-catalyzed chemoenzymatic polymerization of tripeptide ester monomers under moderate conditions in aqueous buffers. The secondary structures of the Abz-containing polypeptides were investigated by IR and wide-angle X-ray diffraction analysis. The WAXD profile of poly(GlyAbzGly) was similar to that of polyGly, whereas poly(AlaAbzAla) adopted a sheet-like structure similar to the β-sheet of polyAla.

    • Kousuke Tsuchiya
    • Naruki Kurokawa
    • Keiji Numata
    ResearchOpen Access
    Polymer Journal
    Volume: 51, P: 1287-1298