Hübner, Kristina Pilo-Pais, Mauricio Selbach, Florian Liedl, Tim Tinnefeld, Philip Stefani, Fernando D. Acuna, Guillermo P. 2019-09-11 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. application/pdf https://folia.unifr.ch/global/documents/308183 https://folia.unifr.ch/documents/308183/files/acu_dsm.pdf https://folia.unifr.ch/documents/308183/files/acu_dsm_sm.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.nanolett.9b02886 info:eu-repo/semantics/openAccess License undefined Nano Letters. - 2019, vol. 19, no. 9, p. 6629–6634 info:eu-repo/classification/udc/54 Directing single-molecule emission with dna origami-assembled optical antennas http://purl.org/coar/resource_type/c_6501