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Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
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Theoretical search for heterogeneously architected 2D structures.

Weizhu Yang1, Qingchang Liu1, Zongzhan Gao1,2

  • 1Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22904.

Proceedings of the National Academy of Sciences of the United States of America
|July 18, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed new theories to predict and design architected 2D structures (HASs). These novel materials offer tunable elastic properties for advanced applications in electronics and optics.

Keywords:
deterministic assemblyelastic propertiesheterogeneously architected 2D structuresinterfacelattice structures

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Area of Science:

  • Mechanics of Materials
  • Materials Science
  • Nanotechnology

Background:

  • Architected 2D materials exhibit unique properties for applications like stretchable electronics and optical devices.
  • Established theoretical frameworks for predicting the elastic properties of complex architected 2D structures are lacking.

Purpose of the Study:

  • To establish theoretical frameworks for predicting the elastic properties of architected 2D structures.
  • To enable the design of novel heterogeneously architected 2D structures (HASs) with tailored mechanical properties.

Main Methods:

  • Developed two mechanics-based theoretical frameworks: strain energy-based theory and displacement continuity-based theory.
  • Applied these theories to search for and design novel HASs with varied lattice cell arrangements and bonding connections.
  • Introduced interface indices to quantify pattern arrangements and bonding disconnections in HASs.

Main Results:

  • Theories accurately predict elastic properties of architected 2D structures.
  • Demonstrated the ability to design HASs with elastic properties spanning orders of magnitude, from near zero to exceeding constituent cells.
  • Interface indices effectively guide the design of HASs with on-demand Young's modulus and geometric features.

Conclusions:

  • The presented theoretical frameworks provide a foundation for understanding and designing architected 2D structures.
  • This work enables the creation of novel HASs with unprecedented, tunable properties for diverse technological applications.
  • Facilitates a future of 'architected structures by design' with predictable and controllable functionalities.