Imaging of conformational changes of biotinylated triamide molecules covalently bonded to a carbon nanotube surface

Eiichi Nakamura, Masanori Koshino, Takatsugu Tanaka, Yoshiko Niimi, Koji Harano, Yuki Nakamura, Hiroyuki Isobe

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    A diamide molecule bearing a biotin terminus was bonded via an amide linkage to the surface of an aminated single-walled carbon nanotube and examined by a high-resolution transmission electron microscope. The still and movie images allowed us to study not only the conformation of the molecule but also its time evolution. An iterative sequence of modeling and simulation allowed us to assign one plausible conformation out of >108 possibilities. The images also provide direct support for the accepted wisdom that the curved regions of pristine carbon nanotubes are chemically reactive.

    Original languageEnglish
    Pages (from-to)7808-7809
    Number of pages2
    JournalJournal of the American Chemical Society
    Volume130
    Issue number25
    DOIs
    Publication statusPublished - 2008 Jun 25

    ASJC Scopus subject areas

    • Catalysis
    • Chemistry(all)
    • Biochemistry
    • Colloid and Surface Chemistry

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