Shape-controlled synthesis of gold nanostructures using DNA origami molds.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25275962.
- Also identified by DOI 10.1021/nl503441v.
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Abstract
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.
Medical subject headings
- DNA
- Gold
- Nanostructures
- Nanotechnology