Forthcoming Events

11.07.2022 - 15.07.2022, Celeste Hotel, on UCF main campus, Orlando, Florida
05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.


MUST2022 Conference- succesfully concluded
New scientific highlights- by MUST PIs Chergui and Richardson
FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”
Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science
New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science
International Day of Women and Girls in Science- SSPh asked female scientists about their experiences
New scientific highlight- by MUST PIs Milne, Standfuss and Schertler
EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL
Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis
NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules
#NCCRWomen- NCCR MUST celebrates 50 years women’s right to vote in Switzerland
Kick-Off dynaMENT Mentoring for Women in Natural Sciences- with Ursula Keller as plenary speaker

Tunneling the Nucleobases - Energy Transfer in DNA-Organized Polyaromatic Chromophores

June 19, 2019

DNA-Organized Light-Harvesting Antennae: Energy Transfer in Polyaromatic Stacks Proceeds through Interposed Nucleobase Pairs.

DNA-based light-harvesting antennae composed of light-collecting phenanthrenes and pyrene acceptors were synthesized and investigated. Excitation of phenanthrene leads to energy transfer to pyrene which then results in pyrene emission. Energy transfer is observed if the stack of phenanthrene units is interrupted by up to five DNA base pairs. The separation by one and two base pairs shows no decrease in energy transfer efficiency compared to a continuous phenanthrene stack. The light-harvesting antenna interrupted by one base pair has the highest efficiency of all tested duplexes. A separation by 3 to 5 base pairs leads to a gradual decrease in efficiency but energy transfer is still detected with 5 intervening base pairs. The data demonstrate that it is possible to assemble phenanthrene-based light-harvesting antennae which are mixed with natural DNA base pairs. This extends the range of potential designs and applications of DNA-based artificial light-harvesting complexes.


Reference: C. D. Bösch, E. Abay, S.M. Langenegger, M. Nazari, A. Cannizzo, T. Feurer, R. Häner (2019). DNA-Organized Light-Harvesting Antennae: Energy Transfer in Polyaromatic Stacks Proceeds through Interposed Nucleobase Pairs. Helv. Chim. Acta, 102, e1900148 (DOI: 10.1002/hlca.201900148)
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