Gold-nanoparticle-mediated jigsaw-puzzle-like assembly of supersized plasmonic DNA origami.
Angew Chem Int Ed Engl
; 54(10): 2966-9, 2015 Mar 02.
Article
in En
| MEDLINE
| ID: mdl-25612825
ABSTRACT
DNA origami has rapidly emerged as a powerful and programmable method to construct functional nanostructures. However, the size limitation of approximately 100â
nm in classic DNAâ
origami hampers its plasmonic applications. Herein, we report a jigsaw-puzzle-like assembly strategy mediated by gold nanoparticles (AuNPs) to break the size limitation of DNA origami. We demonstrated that oligonucleotide-functionalized AuNPs function as universal joint units for the one-pot assembly of parent DNA origami of triangular shape to form sub-microscale super-origami nanostructures. AuNPs anchored at predefined positions of the super-origami exhibited strong interparticle plasmonic coupling. This AuNP-mediated strategy offers new opportunities to drive macroscopic self-assembly and to fabricate well-defined nanophotonic materials and devices.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
DNA
/
Metal Nanoparticles
/
Gold
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2015
Document type:
Article