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Literature DB >> 19331419

Pyramidal and chiral groupings of gold nanocrystals assembled using DNA scaffolds.

Alexander J Mastroianni¹, Shelley A Claridge, A Paul Alivisatos.

Abstract

Nanostructures constructed from metal and semiconductor nanocrystals conjugated to and organized by DNA are an emerging class of materials with collective optical properties. We created discrete pyramids of DNA with gold nanocrystals at the tips. By taking small-angle X-ray scattering measurements from solutions of these pyramids, we confirmed that this pyramidal geometry creates structures which are more rigid in solution than linear DNA. We then took advantage of the tetrahedral symmetry to demonstrate construction of chiral nanostructures.

Entities: Chemical Disease Species

Mesh：

Substances：
Solutions
Gold
DNA

Year: 2009 PMID： 19331419 PMCID： PMC2767249 DOI： 10.1021/ja808570g

Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419

19 in total

Pyramidal and chiral groupings of gold nanocrystals assembled using DNA scaffolds.

1. Synthesis from DNA of a molecule with the connectivity of a cube.

2. Rapid chiral assembly of rigid DNA building blocks for molecular nanofabrication.

3. Sequential self-assembly of a DNA hexagon as a template for the organization of gold nanoparticles.

4. Two-dimensional nanoparticle arrays show the organizational power of robust DNA motifs.

5. Plasmonic nanostructures: artificial molecules.

6. A self-assembled DNA bipyramid.

7. Reconfigurable, braced, three-dimensional DNA nanostructures.

8. Reconfigurable core-satellite nanoassemblies as molecularly-driven plasmonic switches.

9. Chiral colloidal clusters.

10. Enzymatic ligation creates discrete multinanoparticle building blocks for self-assembly.

1. DNA-based self-assembly of chiral plasmonic nanostructures with tailored optical response.

2. Protein-assisted self-assembly of multifunctional nanoparticles.

3. A systems approach towards the stoichiometry-controlled hetero-assembly of nanoparticles.

4. Transfer of molecular recognition information from DNA nanostructures to gold nanoparticles.

5. Probing the conformational distributions of subpersistence length DNA.

6. Prescribed nanoparticle cluster architectures and low-dimensional arrays built using octahedral DNA origami frames.

Review 7. Building plasmonic nanostructures with DNA.

8. Electric-field-induced assembly and propulsion of chiral colloidal clusters.

Review 9. Transmission of chirality through space and across length scales.

10. Spectral signatures of charge transfer in assemblies of molecularly-linked plasmonic nanoparticles.