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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Designed self-assembly of programmable colloidal atom-electron equivalents.

Xiuyang Xia1,2, Yuhan Peng1, Ka Ki Li3

  • 1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.

Reports on Progress in Physics. Physical Society (Great Britain)
|June 30, 2025
PubMed
Summary
This summary is machine-generated.

This study explores programmable colloidal atom-electron equivalents (PAE-EEs) for building complex structures. Findings reveal optimal linker valency for precise, targeted self-assembly of colloidal molecules.

Keywords:
DNA coated colloidsMonte Carlo simulationmean-field theoryself-assembly

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Area of Science:

  • Colloidal science
  • Nanotechnology
  • Materials science

Background:

  • Complex colloidal structures are challenging to assemble.
  • Programmable atom-electron equivalents (PAE-EEs) offer a potential solution.
  • Understanding linker-mediated interactions is crucial for controlled assembly.

Purpose of the Study:

  • Investigate a minimal binary system of PAE-EEs.
  • Develop a framework to calculate PAE-PAE interactions mediated by EEs.
  • Identify design principles for targeted self-assembly.

Main Methods:

  • Statistical mechanical framework derivation.
  • Simulations using explicit electron equivalents (EEs).
  • Analysis of PAE-PAE interaction dependence on EE valency.

Main Results:

  • Framework quantitatively agrees with simulations.
  • Anomalous dependence of interactions on EE valency observed.
  • EE-mediated interactions converge at high valency.
  • Optimal EE valency identified for maximizing binding specificity.

Conclusions:

  • EE valency is a critical parameter for controlling colloidal self-assembly.
  • Design principles for targeted assembly in PAE-EE systems are established.
  • This work advances the creation of complex colloidal 'molecules'.