Integrating DNA-Photonic Wires into Light-Harvesting Supramolecular Polymers

Kownacki, Mariusz; Langenegger, Simon Matthias; Liu, Shi-Xia; Häner, Robert (2019). Integrating DNA-Photonic Wires into Light-Harvesting Supramolecular Polymers. Angewandte Chemie (International ed.), 58(3), pp. 751-755. Wiley-VCH 10.1002/anie.201809914

Text Kownacki_et_al-2019-Angewandte_Chemie_International_Edition.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (1MB)

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.

Interest & Impact

Downloads

3 since deposited on 19 Feb 2019
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item