Directing Single-Molecule Emission with DNA Origami-Assembled Optical Antennas.

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ID: 29453
2019
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Abstract
We demonstrate the capability of DNA self-assembled optical antennas to direct the emission of an individual fluorophore, which is free to rotate. DNA origami is used to fabricate optical antennas composed of two colloidal gold nanoparticles separated by a predefined gap and to place a single Cy5 fluorophore near the gap center. Although the fluorophore is able to rotate, its excitation and far-field emission is mediated by the antenna, with the emission directionality following a dipolar pattern according to the antenna main resonant mode. This work is intended to set out the basis for manipulating the emission pattern of single molecules with self-assembled optical antennas based on colloidal nanoparticles.
Reference Key
hubner2019directingnano Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Hübner, Kristina;Pilo-Pais, Mauricio;Selbach, Florian;Liedl, Tim;Tinnefeld, Philip;Stefani, Fernando D;Acuna, Guillermo P;
Journal Nano letters
Year 2019
DOI
10.1021/acs.nanolett.9b02886
URL
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