AIE-Active Supramolecular Assemblies of TPE-DNA Conjugates

Rothenbühler, Simon; Langenegger, Simon Matthias; Häner, Robert (6 September 2019). AIE-Active Supramolecular Assemblies of TPE-DNA Conjugates (Unpublished). In: Swiss Chemical Society Fall Meeting 2019. University of Zurich, Irchel Campus. 06.09.2019.

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Opposite to many chromophores that suffer from aggregation-caused quenching (ACQ), aggregation-induced emission (AIE) type chromophores exhibit intense fluorescence and efficient energy transfer in molecular assemblies. That is why aggregation-induced emitters have gained much attention in the fields of optoelectronic devices and the creation of artificial light-harvesting systems among others.[1] Previous work demonstrated light-harvesting in supramolecular vesicles assembled from phenanthrene-DNA conjugates.[2] In this work, the phenanthrenes have been replaced by either E-tetraphenylethylenes (TPEs) (Figure 1A) or Z-TPEs and resulted in the formation of AIE-active supramolecular assemblies. As evidenced by AFM, duplex 1 self-assembles in aqueous medium into spherical objects (Figure 1B). Similar results are also obtained for Z-TPE-modified DNA conjugates. Spectroscopic data as well as physicochemical properties of the supramolecular arrays will be presented and discussed on this poster.

Item Type:

Conference or Workshop Item (Poster)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Rothenbühler, Simon; Langenegger, Simon Matthias and Häner, Robert

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

Language:

English

Submitter:

Simon Rothenbühler

Date Deposited:

17 Sep 2019 15:46

Last Modified:

24 Oct 2019 02:58

BORIS DOI:

10.7892/boris.133234

URI:

https://boris.unibe.ch/id/eprint/133234

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