Electron Irradiation Driven Nanohands for Sequential Origami

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

Research output: Contribution to journalArticlepeer-review

9 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

Bibliographical note

Funding Information:
This material is based upon work supported by an NSF CAREER Award (CMMI-1454293). This work was supported partially by the National Science Foundation through the University of Minnesota MRSEC under Award Number DMR-1420013. Parts of this work were carried out in the Characterization Facility, University of Minnesota, a member of the NSF-funded Materials Research Facilities Network ( www.mrfn.org ) via the MRSEC program. Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network, Award Number NNCI1542202. C.D. acknowledges support from the Doctoral Dissertation Fellowship from University of Minnesota. The authors would like to thank Dr. Jason Myers for providing valuable support on TEM measurement.

Publisher Copyright:
© 2020 American Chemical Society.


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

How much support was provided by MRSEC?

  • Partial

PubMed: MeSH publication types

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


Dive into the research topics of 'Electron Irradiation Driven Nanohands for Sequential Origami'. Together they form a unique fingerprint.

Cite this