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Updated: Aug 21, 2025
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Assembly of Gold Nanorods into Chiral Plasmonic Metamolecules Using DNA Origami Templates
Published on: March 5, 2019
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A switchable DNA origami/plasmonic hybrid device with a precisely tuneable DNA-free interparticle gap
Michael Erkelenz1, Richard Kosinski2, Helene Giesler1
1Department of Chemistry, Center for Nanointegration Duisburg-Essen (CENIDE) and Center for Medical Biotechnology (ZMB), University of Duisburg-Essen, Universitaetsstraße 5, 45141 Essen, Germany. Sebastian.Schluecker@uni-due.de.
Chemical Communications (Cambridge, England)
|November 16, 2022
Summary
Researchers developed a novel DNA/plasmonic nanodevice for precise control over nanoparticle spacing. This DNA-free gap technology allows for reconfigurable and reversible adjustments, advancing nanophotonics applications.
Area of Science:
- Nanotechnology
- Plasmonics
- Biomolecular Engineering
Background:
- Precise control over nanoparticle spacing is crucial for plasmonic devices.
- Existing methods often lack reconfigurability or require complex fabrication.
Purpose of the Study:
- To demonstrate a reconfigurable DNA/plasmonic nanodevice.
- To achieve a tunable and DNA-free interparticle gap for nanoparticles.
Main Methods:
- Utilized DNA boxes for size-selective nanoparticle incorporation in a face-to-face orientation.
- Employed a switchable DNA platform to control interparticle distance reversibly.
Main Results:
- Successfully created a nanodevice with a precisely tunable interparticle gap.
- Demonstrated DNA-free gap control, enabling reconfigurable nanostructures.
Conclusions:
- The developed nanodevice offers a novel platform for advanced plasmonic applications.
- The DNA-free, tunable gap technology provides a versatile tool for nanophotonics research.
