Electron Irradiation Driven Nanohands for Sequential Origami

Chunhui Dai, Lianbi Li, Daniel Wratkowski, Jeong Hyun Cho

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Sequence plays an important role in self-assembly of 3D complex structures, particularly for those with overlap, intersection, and asymmetry. However, it remains challenging to program the sequence of self-assembly, resulting in geometric and topological constrains. In this work, a nanoscale, programmable, self-assembly technique is reported, which uses electron irradiation as "hands"to manipulate the motion of nanostructures with the desired order. By assigning each single assembly step in a particular order, localized motion can be selectively triggered with perfect timing, making a component accurately integrate into the complex 3D structure without disturbing other parts of the assembly process. The features of localized motion, real-time monitoring, and surface patterning open the possibility for the further innovation of nanomachines, nanoscale test platforms, and advanced optical devices.

Original languageEnglish (US)
Pages (from-to)4975-4984
Number of pages10
JournalNano letters
Issue number7
StatePublished - Jul 8 2020


  • 3D
  • electron irradiation
  • phase change
  • self-assembly
  • sequential origami
  • weaving

How much support was provided by MRSEC?

  • Partial

Reporting period for MRSEC

  • Period 7

PubMed: MeSH publication types

  • Journal Article
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

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