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July 20, 2026Advanced Materials0 citations

Directing Assembly of Mesoscale Multi‐Shell Morphologies of DNA Origami Crystals

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DLDayoung Gloria LeeMHMingxin HeKJKate Jensen

Key Points

  • The aim is to develop a strategy for constructing diverse mesoscale morphologies using DNA origami to mimic nature's hierarchical structures.
  • Introduced a DNA-based self-assembly strategy using modular DNA origami frames.
  • Directed anisotropic epitaxial growth by employing addressable DNA frame binding motifs and incorporating nanoparticles.
  • Used thermodynamically favorable conditions for sequential monomer addition to promote shell growth primarily through heterogeneous nucleation.
  • Successfully achieved multilayered mesoscale structures, including tube-like and plate-like morphologies.
  • Validated configurations and compositions of nanoparticles through small-angle x-ray scattering and scanning transmission electron microscopy.
  • Demonstrated modulated release kinetics of nanoparticles from the shells.

Abstract

ABSTRACT Nature builds hierarchically ordered materials, such as seashells, wood, and bones, through spatially and temporally regulated growth. Mimicking such a level of control in synthetic systems remains challenging, particularly in achieving multiscale organizations with prescribed nanoscale arrangements and desired material morphologies. In this study, we introduce a DNA‐based self‐assembly strategy for constructing diverse multi‐shell mesoscale morphologies from nanoscale lattices, enabling prescribed structural, and compositional 3D material patterns. Using DNA origami frames as modular monomers, we direct anisotropic epitaxial growth through addressable DNA frame binding motifs and encapsulate nanoparticles (NPs) in desired 3D patterns. Sequential monomer addition under thermodynamically favorable conditions enables shell growth through heterogeneous nucleation while minimizing unwanted homogeneous nucleation. We demonstrate that DNA‐encoded addressability enables epitaxial shell growth along specific lattice directions, yielding crystals with multilayered mesoscale organization, including tube‐like ( sushi roll ) and plate‐like ( macaron ) morphologies. Shell‐specific NP configurations and compositions are achieved through addressable and differentiated placement of NPs within each shell, as validated by small‐angle x‐ray scattering and cross‐sectional scanning transmission electron microscopy. We further demonstrate addressable NP release and reveal that shells modulate release kinetics. Together, these findings establish a platform for fabricating DNA origami crystals with programmable mesoscale morphologies, nanoscale structure, composition, and transport properties.

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Cite This Study

Lee et al. (2026) studied this question.

synapsesocial.com/papers/6a5dba3f8bd453d3397ab731https://doi.org/10.1002/adma.74118
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