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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Sequence-encoded colloidal origami and microbot assemblies from patchy magnetic cubes.

Koohee Han1,2, C Wyatt Shields2,3, Nidhi M Diwakar2

  • 1Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695-7905, USA.

Science Advances
|August 12, 2017
PubMed
Summary
This summary is machine-generated.

Researchers engineered microcubes that self-assemble into reconfigurable microbots. These micro-robots store and release energy using magnetic fields, enabling precise movements and microscale operations like cell manipulation.

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Area of Science:

  • Materials Science
  • Soft Robotics
  • Nanotechnology

Background:

  • Developing reconfigurable colloidal assemblies is crucial for advanced biomimetic devices.
  • Precise particle arrangement and directional interactions are key challenges in creating functional microstructures.

Purpose of the Study:

  • To engineer metallodielectric patchy microcubes for on-demand energy storage and reconfiguration.
  • To demonstrate the potential of these assemblies as programmable microbots.

Main Methods:

  • Utilizing magnetic polarization to store energy in microcube assemblies.
  • Encoding reconfiguration patterns through the sequence of cube orientations.
  • Leveraging residual polarization for directed particle-particle interactions.

Main Results:

  • Demonstrated energy storage and release via magnetic fields, leading to microscale reconfiguration.
  • Showcased directional control and maneuvering of assemblies using external magnetic fields.
  • Illustrated microscale operations including live cell capture and transport.

Conclusions:

  • Metallodielectric patchy microcubes offer a novel platform for creating dynamic, reconfigurable microstructures.
  • These engineered assemblies show promise as microbots, micromixers, and active microstructures for various applications.