Spontaneous self-assembly of nanospheres from trigonal conjugate of glutathione in water

Kazunori Matsuura, Hironori Matsuyama, Takashi Fukuda, Takeshi Teramoto, Kenta Watanabe, Kazuya Murasato, Nobuo Kimizuka

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    A novel C3-symmetric peptide conjugate bearing three glutathione units (trigonal-glutathione, TG) was synthesized and its self-assembling behavior in water was studied by dynamic light scattering measurement, electron microscopy, and 1H-NMR spectroscopy. In water, TG showed spontaneous self-assembly into nanospheres with the size of 100-250 nm. The size of TG assemblies is minimally affected by the concentration and pH. Concentration dependence of 1H-NMR chemical shifts in D2O revealed that TG is self-assembled by interactions between glutathione units (hydrogen bonding, electrostatic interactions) with an apparent association constant of Ka = 6.36 × 103 M-1. Concentration dependence of light scattering intensity and guest-binding ability indicated that the nanospheres underwent structural changes from hollow to filled spheres depending on the concentration.

    Original languageEnglish
    Pages (from-to)2463-2470
    Number of pages8
    JournalSoft Matter
    Volume5
    Issue number12
    DOIs
    Publication statusPublished - Jun 24 2009

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Condensed Matter Physics

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