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Self-assembly pathways towards floppy colloidal square lattices.

Yogesh Shelke1, Daniel J G Pearce2, Daniela J Kraft3

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|December 26, 2025
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Summary
This summary is machine-generated.

Reconfigurable bonds enable the creation of floppy square lattices through self-assembly. This study explores pathways to maximize yield and flexibility in these dynamic materials.

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Area of Science:

  • Materials Science
  • Biophysics
  • Chemical Engineering

Background:

  • Reconfigurability is vital for protein and biopolymer function, influencing material properties.
  • The impact of bond reconfigurability on self-assembly pathways remains under-explored.

Purpose of the Study:

  • To investigate how reconfigurable DNA-based bonds influence self-assembly pathways.
  • To create tunable, flexible, square-networked structures using a binary colloidal system.

Main Methods:

  • Utilized a binary colloidal model system with surface-mobile DNA-based bonds.
  • Employed a combination of experiments, analytical calculations, and simulations.
  • Analyzed the effects of size ratio, number ratio, and particle shape-induced directionality.

Main Results:

  • Demonstrated that reconfigurability during self-assembly yields square lattices.
  • Showed these lattices are mechanically unstable and thermally floppy.
  • Identified optimal pathways for maximizing yield and flexibility of square lattices.

Conclusions:

  • Reconfigurability plays a critical role in systems governed by enthalpic and entropic principles.
  • Findings are applicable to both synthetic and biological systems.
  • The study provides insights for designing novel or reconfigurable materials.