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DNA-Assembled Multilayer Sliding Nanosystems.

Pengfei Zhan1, Steffen Both2, Thomas Weiss2

  • 1Max Planck Institute for Intelligent Systems , Heisenbergstrasse 3 , D-70569 Stuttgart , Germany.

Nano Letters
|August 24, 2019
PubMed
Summary
This summary is machine-generated.

Researchers developed DNA-assembled multilayer nanosystems capable of reversible sliding motion. Gold nanoparticles enable controlled movement and in situ optical detection of these dynamic DNA nanostructures.

Keywords:
DNA origamiDNA self-assemblyfluorescence spectroscopylight-matter interactionsmultilayer dynamic nanosystemssliding motion

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Area of Science:

  • Nanotechnology
  • DNA Nanotechnology
  • Biophysics

Background:

  • DNA nanotechnology enables the creation of complex nanoarchitectures with programmable functions.
  • Integrating optically active components into DNA nanostructures imparts tailored optical properties.

Purpose of the Study:

  • To demonstrate DNA-assembled multilayer nanosystems with coordinated and reversible sliding motion.
  • To utilize gold nanoparticles for structural control and optical probing of DNA origami.

Main Methods:

  • Fabrication of multilayer DNA origami nanoarchitectures cross-linked by gold nanoparticles.
  • Integration of fluorophores on DNA filaments for optical detection.
  • Utilizing DNA fuels to power reversible sliding motion.

Main Results:

  • Demonstrated coordinated and reversible sliding motion in DNA-assembled multilayer nanosystems.
  • Gold nanoparticles effectively mediated relative sliding between DNA origami filaments.
  • In situ optical detection of stepwise sliding processes was achieved through gold nanoparticle-fluorophore interactions.

Conclusions:

  • This work establishes a foundation for programmable and addressable DNA-assembled optical nanoarchitectures.
  • The developed systems offer insights into nanoscale self-assembly and dynamic motion.
  • Advancement in the field of DNA nanotechnology with novel functional capabilities.