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

Bösch, Caroline D.; Abay, Elif; Langenegger, Simon M.; Nazari, Maryam; Cannizzo, Andrea; Feurer, Thomas; Häner, Robert (2019). DNA‐Organized Light‐Harvesting Antennae: Energy Transfer in Polyaromatic Stacks Proceeds through Interposed Nucleobase Pairs. Helvetica chimica acta, 102(8) Wiley 10.1002/hlca.201900148

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DNA-based light-harvesting antennae with varying arrangements of light-absorbing phenanthrene donor units and a pyrene acceptor dye were synthesized and tested for their light-harvesting properties. Excitation of phenanthrene is followed by rapid transfer of the excitation energy to the pyrene chromophore. A block of six light-absorbing phenanthrenes was separated from the site of the acceptor in a stepwise manner by an increasing number of intervening AT base pairs. Energy transfer occurs via interposed AT base pairs and is still detected when the phenanthrene antenna is separated by 5 AT base pairs.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry
08 Faculty of Science > Institute of Applied Physics
08 Faculty of Science > Institute of Applied Physics > NCCR MUST

UniBE Contributor:

Langenegger, Simon Matthias; Nazari Haghighi Pashaki, Maryam; Cannizzo, Andrea; Feurer, Thomas and Häner, Robert

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry
600 Technology > 620 Engineering
500 Science > 530 Physics

ISSN:

0018-019X

Publisher:

Wiley

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Robert Häner

Date Deposited:

07 Aug 2019 08:47

Last Modified:

13 Aug 2019 01:32

Publisher DOI:

10.1002/hlca.201900148

BORIS DOI:

10.7892/boris.132378

URI:

https://boris.unibe.ch/id/eprint/132378

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