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Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Field-directed self-assembly with locking nanoparticles.

Mikhail Motornov1, Sergiy Z Malynych, Deepthi S Pippalla

  • 1Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States.

Nano Letters
|June 22, 2012
PubMed
Summary
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Scientists developed a novel reversible locking mechanism for magnetic nanoparticles. This method precisely controls the assembly of nanostructures in liquids, enabling the creation and disassembly of 3D materials.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Chemistry

Background:

  • Self-assembly of nanoparticles is crucial for creating advanced materials.
  • Controlling the dimensions and structure of nanoparticle assemblies remains a challenge.
  • Magnetic fields offer a route to manipulate magnetic nanoparticles, but precise control is difficult.

Purpose of the Study:

  • To establish a reversible locking mechanism for generating anisotropic nanostructures using magnetic field pulses.
  • To precisely regulate the dimensions of self-assembled magnetic nanoparticle chains.
  • To enable the generation and disintegration of three-dimensional (3D) nanostructured materials.

Main Methods:

  • Utilizing a specially tailored polymer shell on nanoparticles to balance various forces (thermal, attractive, repulsive, dipole-dipole).

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A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
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Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
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Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

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Last Updated: May 21, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
12:33

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
08:09

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates

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08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

  • Applying a magnetic field pulse to induce reversible locking and control nanostructure formation.
  • Investigating the mechanism in liquid matrices, including solvents and polymers.

    • Main Results:

    • A reversible locking mechanism was successfully established for anisotropic nanostructure generation.
    • Precise regulation of magnetic nanoparticle chain dimensions was achieved.
    • The ability to generate and disintegrate 3D nanostructured materials was demonstrated.

    Conclusions:

    • The developed locking mechanism offers precise control over nanoparticle self-assembly.
    • This approach facilitates the dynamic formation and breakdown of complex 3D nanostructures.
    • The findings have potential applications in advanced materials fabrication and nanotechnology.