Nano Research

, Volume 5, Issue 12, pp 833–844

Repair and stabilization in confined nanoscale systems — inorganic nanowires within single-walled carbon nanotubes

  • Adelina Ilie
  • Simon Crampin
  • Lisa Karlsson
  • Mark Wilson
Research Article

DOI: 10.1007/s12274-012-0267-5

Cite this article as:
Ilie, A., Crampin, S., Karlsson, L. et al. Nano Res. (2012) 5: 833. doi:10.1007/s12274-012-0267-5


Repair is ubiquitous in biological systems, but rare in the inorganic world. We show that inorganic nanoscale systems can however possess remarkable repair and reconfiguring capabilities when subjected to extreme confinement. Confined crystallization inside single-walled carbon nanotube (SWCNT) templates is known to produce the narrowest inorganic nanowires, but little is known about the potential for repair of such nanowires once crystallized, and what can drive it. Here inorganic nanowires encapsulated within SWCNTs were seen by high-resolution transmission electron microscopy to adjust to changes in their nanotube template through atomic rearrangement at room temperature. These observations highlight nanowire repair processes, supported by theoretical modeling, that are consistent with atomic migration at fractured, ionic ends of the nanowires encouraged by long-range force fields, as well as release-blocking mechanisms where nanowire atoms bind to nanotube walls to stabilize the ruptured nanotube and allow the nanowire to reform. Such principles can inform the design of nanoscale systems with enhanced resilience.


Filled carbon nanotubesnanowiresrepairhigh-resolution transmission electron microscopy (HRTEM)density functional theorymolecular dynamics

Supplementary material

12274_2012_267_MOESM1_ESM.pdf (768 kb)
Supplementary material, approximately 773 KB.
View video

Supplementary material, approximately 5.87 MB.

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Adelina Ilie
    • 1
  • Simon Crampin
    • 1
  • Lisa Karlsson
    • 2
  • Mark Wilson
    • 3
  1. 1.Department of Physics & Centre for Graphene ScienceUniversity of BathBathUK
  2. 2.Department of MaterialsUniversity of OxfordOxfordUK
  3. 3.Department of Chemistry, Physical and Theoretical Chemistry LaboratoryUniversity of OxfordOxfordUK