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Self-assembled Möbius strips with controlled helicity.

Guanghui Ouyang1,2, Lukang Ji1,3, Yuqian Jiang4

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Topology

Background:

  • Supramolecular topology development is hindered by limited synthetic methods.
  • Möbius strips are fascinating topological objects with unique properties.

Purpose of the Study:

  • To develop a reliable supramolecular strategy for synthesizing Möbius strips.
  • To explore the creation of complex chiral topological structures.

Main Methods:

  • Self-assembly of chiral glutamate amphiphiles into twisted nanofibers.
  • Bending and cyclization of nanofibers to form nano-toroids.
  • Electron microscopy and spectroscopic analysis to characterize structures.

Main Results:

  • Supramolecular nano-toroids with varying twist numbers were successfully synthesized.
  • Möbius strip formation was confirmed for structures with odd twist numbers.
  • Helicity originated from molecular chirality, enabling enantioselective synthesis of M- and P-helical Möbius strips.

Conclusions:

  • A novel supramolecular strategy for accessing Möbius strips has been established.
  • This method allows for the controlled synthesis of chiral, topologically complex nanostructures.
  • The findings pave the way for future advancements in supramolecular topology and chiral materials.