Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays

Cindy Y. Zheng, Edgar Palacios, Wenjie Zhou, Wisnu Hadibrata, Lin Sun, Ziyin Huang, George C. Schatz, Koray Aydin, Chad A. Mirkin

Research output: Contribution to journalArticle

Abstract

Colloidal crystal engineering with DNA on template-confined surfaces is used to prepare arrays of nanocube-based plasmonic antennas and deliberately place dyes with sub-nm precision into their hotspots, on the DNA bonds that confine the cubes to the underlying gold substrate. This combined top-down and bottom-up approach provides independent control over both the plasmonic gap and photonic lattice modes of the surface-confined particle assemblies and allows for the tuning of the interactions between the excited dyes and plasmonically active antennas. Furthermore, the gap mode of the antennas can be modified in situ by utilizing the solvent-dependent structure of the DNA bonds. This is studied by placing two dyes, with different emission wavelengths, under the nanocubes and recording their solvent-dependent emission. It is shown that dye emission not only depends upon the in-plane structure of the antennas but also the size of the gap, which is regulated with solvent. Importantly, this approach allows for the systematic understanding of the relationship between nanoscale architecture and plasmonically coupled dye emission, and points toward the use of colloidal crystal engineering with DNA to create stimuli responsive architectures, which can find use in chemical sensing and tunable light sources.

Original languageEnglish
Article number1904448
JournalAdvanced Materials
Volume31
Issue number41
DOIs
Publication statusPublished - Oct 1 2019

Fingerprint

DNA
Coloring Agents
Dyes
Fluorescence
Crystal engineering
Antennas
Optical lattices
Chemical bonds
Gold
Light sources
Tuning
Wavelength
Substrates

Keywords

  • DNA colloidal crystals
  • fluorescence enhancement
  • gap mode
  • lattice mode
  • plasmonic nanoantenna

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Zheng, C. Y., Palacios, E., Zhou, W., Hadibrata, W., Sun, L., Huang, Z., ... Mirkin, C. A. (2019). Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays. Advanced Materials, 31(41), [1904448]. https://doi.org/10.1002/adma.201904448

Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays. / Zheng, Cindy Y.; Palacios, Edgar; Zhou, Wenjie; Hadibrata, Wisnu; Sun, Lin; Huang, Ziyin; Schatz, George C.; Aydin, Koray; Mirkin, Chad A.

In: Advanced Materials, Vol. 31, No. 41, 1904448, 01.10.2019.

Research output: Contribution to journalArticle

Zheng, CY, Palacios, E, Zhou, W, Hadibrata, W, Sun, L, Huang, Z, Schatz, GC, Aydin, K & Mirkin, CA 2019, 'Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays', Advanced Materials, vol. 31, no. 41, 1904448. https://doi.org/10.1002/adma.201904448
Zheng CY, Palacios E, Zhou W, Hadibrata W, Sun L, Huang Z et al. Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays. Advanced Materials. 2019 Oct 1;31(41). 1904448. https://doi.org/10.1002/adma.201904448
Zheng, Cindy Y. ; Palacios, Edgar ; Zhou, Wenjie ; Hadibrata, Wisnu ; Sun, Lin ; Huang, Ziyin ; Schatz, George C. ; Aydin, Koray ; Mirkin, Chad A. / Tunable Fluorescence from Dye-Modified DNA-Assembled Plasmonic Nanocube Arrays. In: Advanced Materials. 2019 ; Vol. 31, No. 41.
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