Abstract
DNA origami can provide programmed information to guide the self-assembly of gold nanospheres (Au NSs) into higher-order supracolloids. Molecularly precise and truly 2D/3D integration of Au NSs is possible using DNA origami-enabled assembly, and the resulting assemblies have potential applications in plasmonics and metamaterials. However, the relatively small size (<60 nm) and randomly faceted Au NSs that have been used thus far in DNA origami-enabled assembly have limited their nanophotonic applications. Here, the robust self-assembly of the 60–100 nm roundest Au NSs into metamolecular assemblies using 3D DNA origami is described. These Au NSs are successfully conjugated with DNA oligonucleotides and are therefore stable at high salt concentrations even without backfilling using organic ligands. The roundest Au NSs are successfully assembled into supracolloidal metamolecules and chains via 3D DNA origami. These plasmonic metamolecules and chains display strong electric and unnatural magnetic resonances that can be deterministically controlled.
| Original language | English |
|---|---|
| Article number | 1707309 |
| Journal | Advanced Functional Materials |
| Volume | 28 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 2018 Apr 11 |
| Externally published | Yes |
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Keywords
- 3D DNA origami
- metamolecules
- programmed self-assembly
- round gold nanospheres
- unnatural magnetism
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
Cite this
DNA Origami-Guided Assembly of the Roundest 60–100 nm Gold Nanospheres into Plasmonic Metamolecules. / Lee, Jaewon; Huh, Ji Hyeok; Kim, Kwangjin; Lee, Seungwoo.
In: Advanced Functional Materials, Vol. 28, No. 15, 1707309, 11.04.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - DNA Origami-Guided Assembly of the Roundest 60–100 nm Gold Nanospheres into Plasmonic Metamolecules
AU - Lee, Jaewon
AU - Huh, Ji Hyeok
AU - Kim, Kwangjin
AU - Lee, Seungwoo
PY - 2018/4/11
Y1 - 2018/4/11
N2 - DNA origami can provide programmed information to guide the self-assembly of gold nanospheres (Au NSs) into higher-order supracolloids. Molecularly precise and truly 2D/3D integration of Au NSs is possible using DNA origami-enabled assembly, and the resulting assemblies have potential applications in plasmonics and metamaterials. However, the relatively small size (<60 nm) and randomly faceted Au NSs that have been used thus far in DNA origami-enabled assembly have limited their nanophotonic applications. Here, the robust self-assembly of the 60–100 nm roundest Au NSs into metamolecular assemblies using 3D DNA origami is described. These Au NSs are successfully conjugated with DNA oligonucleotides and are therefore stable at high salt concentrations even without backfilling using organic ligands. The roundest Au NSs are successfully assembled into supracolloidal metamolecules and chains via 3D DNA origami. These plasmonic metamolecules and chains display strong electric and unnatural magnetic resonances that can be deterministically controlled.
AB - DNA origami can provide programmed information to guide the self-assembly of gold nanospheres (Au NSs) into higher-order supracolloids. Molecularly precise and truly 2D/3D integration of Au NSs is possible using DNA origami-enabled assembly, and the resulting assemblies have potential applications in plasmonics and metamaterials. However, the relatively small size (<60 nm) and randomly faceted Au NSs that have been used thus far in DNA origami-enabled assembly have limited their nanophotonic applications. Here, the robust self-assembly of the 60–100 nm roundest Au NSs into metamolecular assemblies using 3D DNA origami is described. These Au NSs are successfully conjugated with DNA oligonucleotides and are therefore stable at high salt concentrations even without backfilling using organic ligands. The roundest Au NSs are successfully assembled into supracolloidal metamolecules and chains via 3D DNA origami. These plasmonic metamolecules and chains display strong electric and unnatural magnetic resonances that can be deterministically controlled.
KW - 3D DNA origami
KW - metamolecules
KW - programmed self-assembly
KW - round gold nanospheres
KW - unnatural magnetism
UR - http://www.scopus.com/inward/record.url?scp=85041864178&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85041864178&partnerID=8YFLogxK
U2 - 10.1002/adfm.201707309
DO - 10.1002/adfm.201707309
M3 - Article
AN - SCOPUS:85041864178
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 15
M1 - 1707309
ER -