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DNA Packaging00:58

DNA Packaging

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Related Experiment Video

Updated: May 13, 2026

Designing a Bio-responsive Robot from DNA Origami
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Controlling Nanoparticle Distance by On-Surface DNA-Origami Folding.

Zhe Liu1, Zunhao Wang2, Jannik Guckel2

  • 1Institute of Applied Physics, Technische Universität Braunschweig, 38106, Braunschweig, Germany.

Small (Weinheim an Der Bergstrasse, Germany)
|April 18, 2024
PubMed
Summary

Researchers developed a new method combining lithography and DNA origami to precisely control nanoscale structures. This technique enables the creation of tunable plasmonic nanostructures for advanced applications.

Keywords:
AuNPs dimerDNA origamidistance controlon‐surface foldingsurface enhanced Raman spectroscopy

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Last Updated: May 13, 2026

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Area of Science:

  • Nanotechnology
  • Biophysics
  • Materials Science

Background:

  • DNA origami offers a versatile platform for organizing nano-objects with high flexibility.
  • Existing methods for DNA origami folding primarily occur in liquid, limiting precise spatial control.
  • Applications span biomedicine and nano-photonics, driven by customizable nanostructures.

Purpose of the Study:

  • To develop a novel method for controlling DNA origami folding using surface adsorption.
  • To fabricate tunable plasmonic dimer nano-arrays on silicon surfaces.
  • To demonstrate precise control over nanoparticle spacing for enhanced optical properties.

Main Methods:

  • Combining top-down lithography (electron beam lithography) with bottom-up DNA origami.
  • Creating pre-patterned adsorption sites on silicon surfaces.
  • Utilizing self-organized adsorption of DNA origami functionalized with gold nanoparticles (AuNPs).

Main Results:

  • Tunable plasmonic dimer nano-arrays were successfully fabricated on silicon.
  • The size and shape of adsorption sites controlled DNA origami folding and AuNP dimer spacing.
  • Enhanced Raman signals from TAMRA dye molecules confirmed the plasmonic properties.

Conclusions:

  • This hybrid approach offers precise control over DNA origami folding and nanostructure assembly.
  • The method enables the creation of tunable plasmonic nanostructures with potential in various fields.
  • Surface-patterned DNA origami presents a powerful strategy for advanced nanoscale device fabrication.