Issue 35, 2018

Spectral dependence of plasmon-enhanced fluorescence in a hollow nanotriangle assembled by DNA origami: towards plasmon assisted energy transfer

Abstract

The precise positioning of plasmonic nanoscale objects and organic molecules can significantly boost our ability to fabricate hybrid nanoarchitectures with specific target functionalities. In this work, we used a DNA origami structure to precisely localize three different fluorescent dyes close to the tips of hollow gold nanotriangles. A spectral dependence of plasmon-enhanced fluorescence is evidenced through co-localized AFM and fluorescence measurements. The experimental results match well with explanatory FDTD simulations. Our findings open the way to the bottom-up fabrication of plasmonic routers operating through plasmon energy transfer. They will allow one to actively control the direction of light propagation.

Graphical abstract: Spectral dependence of plasmon-enhanced fluorescence in a hollow nanotriangle assembled by DNA origami: towards plasmon assisted energy transfer

Supplementary files

Article information

Article type
Paper
Submitted
31 May 2018
Accepted
01 Aug 2018
First published
22 Aug 2018

Nanoscale, 2018,10, 16568-16573

Spectral dependence of plasmon-enhanced fluorescence in a hollow nanotriangle assembled by DNA origami: towards plasmon assisted energy transfer

P. Ivaskovic, A. Yamada, J. Elezgaray, D. Talaga, S. Bonhommeau, M. Blanchard-Desce, R. A. L. Vallée and S. Ravaine, Nanoscale, 2018, 10, 16568 DOI: 10.1039/C8NR04426K

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