Journal
NANO LETTERS
Volume 11, Issue 11, Pages 4859-4864Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl203194m
Keywords
Plasmonics; DNA; colloidal self-assembly; nanoshell; magnetic dipole; Fano resonance
Categories
Funding
- DARPA [W911NF-08-1-0151]
- NIH/NIGMS [R01GM065865]
- HHMI
- Robert A. Welch foundation [C-1222, E-1728]
- US Department of Defense [N00244-09-1-0067]
- Office of Naval Research [N00244-09-1-0989, N00014-10-1-0929]
- Air Force Office of Scientific Research [FA8650-090-D-5037]
- Department of Energy Office of Science (DOE SCGF)
- ORISE-ORAU [DE-AC05-06OR23100]
- NSF [ECCS-0709323]
Ask authors/readers for more resources
DNA nanotechnology provides a versatile foundation for the chemical assembly of nanostructures. Plasmonic nanoparticle assemblies are of particular interest because they can be tailored to exhibit a broad range of electromagnetic phenomena. In this Letter, we report the assembly of DNA-functionalized nanoparticles into heteropentamer clusters, which consist of a smaller gold sphere surrounded by a ring of four larger spheres. Magnetic and Fano-like resonances are observed in individual clusters. The DNA plays a dual role: it selectively assembles the clusters in solution and functions as an insulating spacer between the conductive nanoparticles. These particle assemblies can be generalized to a new class of DNA-enabled plasmonic heterostructures that comprise various active and passive materials and other forms of DNA scaffolding.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available