Supramolecular Tubule from Seesaw Shaped Amphiphile and Its Hierarchical Evolution into Sheet

Haonan Sun, Longlong Dong, Yongju Kim, Myongsoo Lee

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Although supramolecular one-dimensional (1D) and two-dimensional (2D) structures with various unique properties have been extensively studied, the reversible switching between tubules and sheets via lateral association remains challenging. Here, we report the unique structures of a supramolecular tubular bamboo culm in which the hollow-tubular interior is separated, at intervals, by nodes per 1.3 nm. Interestingly, the discrete tubules are able to hierarchically assemble into a flat sheet in response to an aromatic guest. The addition of trans-azobenzene, as a guest, enables the tubules to form a hierarchical sheet assembly via the lateral interaction. The hierarchical sheet structures are disassembled into their constituent tubules upon UV irradiation due to trans-cis isomerization. The recovery from cis-azobenzene to trans-form induces repeatedly the hierarchical sheet assembly, indicative of a reversible switching behavior between tubules and sheets triggered by an external stimulus.

Original languageEnglish
Pages (from-to)2470-2474
Number of pages5
JournalChemistry - An Asian Journal
Issue number16
Publication statusPublished - 2020 Aug 17


  • Lateral Association
  • Seesaw-Shaped Amphiphile
  • Sheet
  • Supramolecule
  • Tubular Culm

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry


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