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Integrating DNA Photonic Wires into Light-Harvesting Supramolecular Polymers

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Kownacki Mariusz, Langenegger Simon M., Liu Shi-Xia, Häner Robert,
Project From DNA-Assembled Oligochromophores to Supramolecular Polymers: Aromatic Oligophosphates as Versatile Building Blocks for Functional Materials
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Original article (peer-reviewed)

Journal Angewandte Chemie International Edition
Volume (Issue) 58(3)
Page(s) 751 - 755
Title of proceedings Angewandte Chemie International Edition
DOI 10.1002/anie.201809914

Open Access

Type of Open Access Repository (Green Open Access)


An approach combining DNA nanoscaffolds with supramolecular polymers for the efficient and directional propagation of light‐harvesting cascades has been developed. A series of photonic wires with different arrangements of fluorophores in DNA‐organized nanostructures were linked to light‐harvesting supramolecular phenanthrene polymers (SPs) in a self‐assembled fashion. Among them, a light harvesting complex (LHC) composed of SPs and a photonic wire of phenanthrene, Cy3, Cy5 and Cy5.5 chromophores reveals a remarkable energy transfer efficiency of 59%. Stepwise transfer of the excitation energy collected by the light‐harvesting SPs via the intermediate Cy3 and Cy5 chromophores to the final Cy5.5 acceptor proceeds by a Förster resonance energy transfer mechanism. In addition, the light‐harvesting properties are documented by antenna effects ranging from 1.4 up to 23 for different LHCs.