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. Author manuscript; available in PMC: 2019 Jun 3.
Published in final edited form as: ACS Nano. 2017 Nov 1;11(11):11264–11272. doi: 10.1021/acsnano.7b05631

Figure 1. Homo-FRET-mediated photonic wire.

Figure 1

(A) Schematic representation of the three-layered DNA origami block and a TEM image of origami blocks, some of which are lying flat and others standing on their sides (scale bar: 80 nm). In the enlarged region, the scheme indicates the designed locations of the dye molecules with respect to the DNA strands. (B) Examples of wire constructs introducing the nomenclature. Alexa488, Cy3 and Cy5 dyes are depicted as blue, green and red stars, respectively. Empty stars indicate the absence of a dye at this position. (C) Possible energy pathways of the photonic wire and their corresponding transfer rates. The thickness of the yellow arrows is proportional to the calculated efficiency of the homo-FRET between the two green dyes.