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Updated: Jun 3, 2026
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Assembly of Gold Nanorods into Chiral Plasmonic Metamolecules Using DNA Origami Templates
Published on: March 5, 2019
Binary heterogeneous superlattices assembled from quantum dots and gold nanoparticles with DNA
1Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.
Journal of the American Chemical Society
|March 24, 2011
Summary
Researchers assembled gold nanoparticles (AuNPs) and quantum dots (QDs) into a 3D superlattice using DNA encoding. This DNA-directed self-assembly method creates novel heterogeneous nanostructures for advanced material fabrication.
Area of Science:
- Materials Science
- Nanotechnology
- Biotechnology
Background:
- Controllable assembly of nanoscale objects into 3D superlattices is crucial for advanced material fabrication.
- Heterogeneous superlattices offer unique properties by integrating diverse nanomaterials.
Purpose of the Study:
- To demonstrate the DNA-encoded assembly of heterogeneous 3D superlattices from gold nanoparticles (AuNPs) and quantum dots (QDs).
- To characterize the resulting superlattice structure and arrangement of different nano-objects.
Main Methods:
- DNA encoding for directed self-assembly of AuNPs and QDs.
- Synchrotron-based small-angle X-ray scattering (SAXS) for structural analysis.
Main Results:
- Successful assembly of heterogeneous 3D structures from AuNPs and QDs.
- AuNPs and QDs form a body-centered cubic lattice.
- Individual AuNP and QD components arrange in a simple-cubic manner within the superlattice.
Conclusions:
- DNA-encoded interactions provide a viable route for assembling integrated heterogeneous 3D nanostructures.
- This approach enables precise control over the arrangement of different nano-objects in 3D space.
- The findings pave the way for fabricating novel functional materials with tailored properties.
