Direct Observation and Manipulation of Supramolecular Polymerization by High-Speed Atomic Force Microscopy

Tomoya Fukui, Takayuki Uchihashi, Norihiko Sasaki, Hiroki Watanabe, Masayuki Takeuchi, Kazunori Sugiyasu

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Despite recent advances in mechanistic understanding and controlled-synthesis methodologies regarding synthetic supramolecular assemblies, it has remained challenging to capture the molecular-level phenomena in real time, thus hindering further progress in this research field. In this study, we applied high-speed atomic-force microscopy (AFM), which has extraordinary spatiotemporal resolution (1 nm and sub-100 ms), to capture dynamic events occurring during synthetic molecular self-assembly. High-speed AFM permitted the visualization of unique dynamic behavior, such as seeded growth and self-repair in real time. Furthermore, scanning-probe AFM permitted the site-specific manipulation and functionalization of a molecular self-assembly. This powerful combination of bottom-up and top-down approaches at the molecular level should enable targeted syntheses of unprecedented functional nanoarchitectures.

Original languageEnglish
Pages (from-to)15465-15470
Number of pages6
JournalAngewandte Chemie - International Edition
Volume57
Issue number47
DOIs
Publication statusPublished - 2018 Nov 19
Externally publishedYes

Keywords

  • high-speed atomic force microscopy
  • pathway complexity
  • polymerization
  • porphyrins
  • supramolecular polymers

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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