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AIST
Research Topics

Molecular abacus: STM Manipulation of Cyclodextrin Necklace

Characteristics
  • Precise control of molecular movement using polyrotaxane (cyclodextrin necklace)
  • PEG chain acts as a guide rail during the CyD's translational motion.
  • Reproducible and stable operation is possible at room temperature and atmosphere.
Example: Simple shuttling
  • CyDs in the molecular necklace was mechanically pushed by the STM tip along the main chain of PEG.
  • Target CyD moved by the tip-sweep from left to right.
cyclodextrin necklace



STM shuttling

References

  1. "Formation Process of Cyclodextrin Necklace -Analysis of Hydrogen Bonding on a Molecular Level-"
    K. Miyake, S. Yasuda, A. Harada, J. Sumaoka, M. Komiyama, and H. Shigekawa
    Journal of the American Chemical Society 125, 5080-5085 (2003).

  2. "The Molecular Abacus -STM Manipulation of Cyclodextrin Necklace-"
    H. Shigekawa, K. Miyake, J. Sumaoka, A. Harada, and M. Komiyama
    Journal of the American Chemical Society 122, 5411-5412 (2000).

  3. "Guest-dependent Ordering of the Self-Assembled Cyclodextrin Inclusion Complexes Studied by Scanning Tunneling Microscopy"
    S. Yasuda, Y. Goto, K. Miyake, K. Hata , J. Sumaoka, A. Harada, M.Komiyama, and H. Shigekawa
    Proceedings of 9th International Cyclodextrins Symposium (1999).

  4. "Scanning Tunneling Microscopy on Ordered Self-Assemblies of Cycrodextrin Incrusion Complexes Formed by Substrate-Induced Two-Dimensional Crystal Growth"
    S. Yasuda, K. Miyake, Y. Goto, M. IShida, K. Hata, M. Fujita, M. Yoshida, J. Sumaoka, M. Komiyama, and H. Shigekawa
    Japanese Journal of Applied Physics 37, 3844-3848 (1998).

  5. "Lattice matching of alpha-cyclodextrin commensurate with molybdenum disulfide studied by scanning tunneling microscopy"
    K. Miyake, Y. Aiso, M. Komiyama, A. Harada, M. Kamachi, and H. Shigekawa
    Japanese Journal of Applied Physics 33, 3720-3722 (1994).

  6. "Direct observation of cyclodextrin inclusion complexes by scanning tunneling microscopy"
    H. Shigekawa, K. Miyake, Y. Aiso, A. Harada, and M. Komiyama
    Proceedings of 7th Cyclodextrin symposium, 162-165 (1994).

  7. "α-シクロデキストリン／MoS2の格子整合モデルと包接錯体構造の解析"
    三宅晃司，相磯良明，小宮山真，原田明，蒲池幹治，重川秀実
    表面科学 15, 610-614 (1994). [Japanese]