Journal
NANO LETTERS
Volume 14, Issue 11, Pages 6693-6698Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl503441v
Keywords
Metal nanoparticles; seeded growth; DNA metallizaton; DNA nanostructures; plasmonics
Categories
Funding
- ERC [261224]
- Transregional Collaborative Research Center (project C8) [TRR 61]
- European Research Council (ERC) [261224] Funding Source: European Research Council (ERC)
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We introduce a new concept that allows the synthesis of inorganic nanoparticles with programmable shape. Three-dimensional DNA origami nanostructures harboring an internal cavity are used as molds. A small gold nanoparticle within the cavity nucleates solution-based gold deposition leading to mold filling. We demonstrate the fabrication of 40 nm long rodlike gold particles with quadratic cross section and the formation of higher order assemblies of the obtained particles, which is mediated by their DNA shell.
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