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Updated: Jun 13, 2026

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Fabricating Nanogaps by Nanoskiving
Published on: May 13, 2013
A new fixation strategy for addressable nano-network building blocks.
Erik P Lundberg1, Afaf H El-Sagheer, Petr Kocalka
1Department of Chemical and Biological Engineering/Physical Chemistry, Chalmers University of Technology, Kemivägen 10, SE-412 96 Gothenburg, Sweden.
Summary
DNA self-assembly enables nanostructure construction, but intermediates are unstable. We developed a click-fixation technology to create robust hexagonal DNA modules, applicable to diverse DNA nanoconstructs.
Area of Science:
- Nanotechnology
- Biochemistry
- Materials Science
Background:
- DNA self-assembly is a powerful technique for creating nanoscale structures.
- Hierarchical assembly of DNA nanostructures often relies on hybridized intermediates.
- These intermediates can be thermodynamically labile, limiting the stability and robustness of the final constructs.
Purpose of the Study:
- To develop a method for enhancing the stability of DNA nanostructures.
- To introduce a click-fixation technology for DNA nanoconstructs.
- To create robust hexagonal DNA modules.
Main Methods:
- Demonstration of a click-fixation technology.
- Utilizing hybridized intermediates in DNA hierarchical assembly.
- Formation of hexagonal DNA modules.
Main Results:
- Successful creation of robust hexagonal DNA modules.
- Overcoming the thermodynamic lability of hybridized intermediates.
- Demonstration of a broadly applicable fixation principle.
Conclusions:
- Click-fixation technology provides a robust method for DNA nanostructure assembly.
- This technique enhances the stability of DNA nanoconstructs.
- The principle is versatile and applicable to various DNA nanoconstruct designs.

