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Updated: Aug 28, 2025

Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
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Augmented DNA Nanoarchitectures: A Structural Library of 3D Self-Assembling Tensegrity Triangle Variants.

Karol Woloszyn1, Simon Vecchioni1, Yoel P Ohayon1

  • 1Department of Chemistry, New York University, New York, NY, 10003, USA.

Advanced Materials (Deerfield Beach, Fla.)
|September 13, 2022
PubMed
Summary

Researchers expanded DNA self-assembly by creating new 3D crystalline lattices. This rational design allows for precise control over DNA structures for advanced nanomaterials.

Keywords:
DNA crystalsDNA nanotechnologynanoarchitecturesself-assemblytensegrity triangles

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Area of Science:

  • * Nanotechnology and Materials Science
  • * Structural Biology
  • * Supramolecular Chemistry

Background:

  • * DNA tensegrity triangles self-assemble into 3D rhombohedral lattices using sticky-end cohesion.
  • * Existing methods offer limited control over the complexity and parameters of DNA lattices.

Purpose of the Study:

  • * To expand the library of accessible DNA motifs through covalent extensions and coordinated linkages.
  • * To achieve fine control over the crystal parameters of 3D DNA lattices.
  • * To enable the rational design of complex, customizable DNA architectures.

Main Methods:

  • * Employed covalent extensions of intertriangle regions in DNA tensegrity triangles.
  • * Utilized sticky-end-coordinated linkages with double helical segments in symmetric and asymmetric configurations.
  • * Determined the molecular structures of 18 self-assembled architectures using X-ray crystallography (3.32-9.32 Å resolution).

Main Results:

  • * Successfully synthesized and characterized 18 novel self-assembled DNA architectures.
  • * Observed crystal parameters (cell dimensions, cavity sizes, cross-sectional areas) align with theoretical predictions.
  • * Demonstrated fine control over triclinic and rhombohedral crystal parameters in DNA lattices.

Conclusions:

  • * Rational design enables precise control over 3D DNA lattice parameters.
  • * Augmented DNA architectures can be tailored for self-assembly of designer nanocages and 3D nanomaterials.
  • * Asymmetric crystalline building blocks represent a step towards 3D information encoding.