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Updated: Dec 8, 2025

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Published on: May 6, 2010
DNA-organized artificial LHCs - testing the limits of chromophore segmentation
Nutcha Bürki1, Elena Grossenbacher, Andrea Cannizzo
1Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland. robert.haener@dcb.unibe.ch.
Abstract:
DNA-organized multi-chromophoric systems containing phenanthrene and pyrene derivatives exhibit a highly efficient excitation energy transfer from phenanthrene (donor) to pyrene (acceptor). The energy transfer also occurs if the phenanthrene antenna is interrupted by intervening DNA base pairs. Artificial light-harvesting complexes composed of up to five phenanthrene-DNA alternations with fluorescence quantum yields as high as 68% are described.

