Back to Search
Start Over
Prescribing Silver Chirality with DNA Origami.
- Source :
-
Journal of the American Chemical Society [J Am Chem Soc] 2021 Jun 16; Vol. 143 (23), pp. 8639-8646. Date of Electronic Publication: 2021 Jun 03. - Publication Year :
- 2021
-
Abstract
- Metal nanostructures of chiral geometry interacting with light via surface plasmon resonances can produce tailorable optical activity with their structural alterations. However, bottom-up fabrication of arbitrary chiral metal nanostructures with precise size and morphology remains a synthetic challenge. Here we develop a DNA origami-enabled aqueous solution metallization strategy to prescribe the chirality of silver nanostructures in three dimensions. We find that diamine silver(I) complexes coordinate with the bases of prescribed single-stranded protruding clustered DNA (pcDNA) on DNA origami via synergetic interactions including coordination, hydrogen bonds, and ion-π interaction, which induce site-specific pcDNA condensation and local enrichment of silver precursors that lowers the activation energy for nucleation. Using tubular DNA origami-based metallization, we obtain helical silver patterns up to a micrometer in length with well-defined chirality and pitches. We further demonstrate tailorable plasmonic optical activity of metallized chiral silver nanostructures. This method opens new pathways to synthesize programmable inorganic materials with arbitrary morphology and chirality.
Details
- Language :
- English
- ISSN :
- 1520-5126
- Volume :
- 143
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 34078072
- Full Text :
- https://doi.org/10.1021/jacs.1c00363