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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Self-assembly by anti-repellent structures for programming particles with momentum.

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  • 1Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin-si, Republic of Korea.

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This study introduces a novel method for self-assembling granular materials using anti-repellent traps. This technique enables programmable density and symmetry in particle arrays, overcoming limitations of traditional granular self-assembly.

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Area of Science:

  • Physics
  • Materials Science
  • Engineering

Background:

  • Self-assembly is crucial for applications utilizing liquid-mediated interactions.
  • Granular material self-assembly often results in disordered, jammed configurations due to particle momentum and collisions.
  • Current methods for dry particle self-assembly lack programmability in density and symmetry.

Purpose of the Study:

  • To develop a programmable self-assembly method for granular materials with momentum.
  • To overcome the limitations of disordered phases and jamming in traditional granular assembly.
  • To create regular particle arrays with controllable density and symmetry.

Main Methods:

  • Introducing anti-repellent structures (traps) to capture and hold individual kinetic particles.
  • Utilizing dynamic assembly procedures to manage particle collisions and interactions.
  • Demonstrating the inhibition of physical interactions between neighboring particles via traps.

Main Results:

  • Achieved self-assembly of particles with momentum into regular arrays.
  • Demonstrated programmable control over array density and symmetry.
  • Created highly dense yet unjammed configurations.
  • Preserved inherent randomness in granule location information within traps.

Conclusions:

  • The anti-repellent trap strategy enables programmable granular self-assembly, overcoming previous limitations.
  • This method allows for the creation of ordered, dense, and unjammed granular configurations.
  • The developed technique has potential applications in robust multilevel authentication systems.