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Updated: Jun 15, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles

Published on: February 4, 2013

Complex self-assembled patterns using sparse commensurate templates with locally varying motifs.

Joel K W Yang¹, Yeon Sik Jung, Jae-Byum Chang

¹Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.

Nature Nanotechnology

|March 16, 2010

Summary

Researchers developed a new method using sparse templates to precisely control block copolymer self-assembly. This technique enables the creation of complex, arbitrary patterns with high fidelity, advancing materials science applications.

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Area of Science:

Materials Science
Nanotechnology
Polymer Chemistry

Background:

Block copolymer self-assembly is crucial for creating nanoscale patterns.
Sparse templates have limitations in directing arbitrary pattern formation.

Purpose of the Study:

To demonstrate a novel method for templated self-assembly of block copolymers using sparse templates.
To achieve arbitrary pattern generation with control over complex features like bends and junctions.

Main Methods:

Electron-beam patterning of an inorganic resist to create precisely spaced and shaped posts.
Utilizing two methods: matching post spacing to polymer periodicity and altering local post geometry.
Applying these methods to cylindrical-morphology block copolymers.

Main Results:

Demonstrated control over the orientation of linear self-assembled features using sparse templates.
Successfully directed the formation of bends, junctions, and other aperiodic features at specific locations.
Achieved complex pattern formation using templates occupying a small fraction of the total pattern area.

Conclusions:

Sparse templates, when carefully designed, can effectively direct complex block copolymer self-assembly.
This method offers a pathway to generate arbitrary nanoscale patterns with high precision.
The technique has potential applications in advanced nanofabrication and materials design.