Rothenbühler S, Gonzalez A, Iacovache I, Langenegger SM, Zuber B, Häner R. Tetraphenylethylene-DNA conjugates: influence of sticky ends and DNA sequence length on the supramolecular assembly of AIE-active vesicles.
Org Biomol Chem 2022;
20:3703-3707. [PMID:
35262542 PMCID:
PMC9092531 DOI:
10.1039/d2ob00357k]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The supramolecular assembly of DNA conjugates, functionalized with tetraphenylethylene (TPE) sticky ends, into vesicular structures is described. The aggregation-induced emission (AIE) active TPE units allow monitoring the assembly process by fluorescence spectroscopy. The number of TPE modifications in the overhangs of the conjugates influences the supramolecular assembly behavior. A minimum of two TPE residues on each end are required to ensure a well-defined assembly process. The design of the presented DNA-based nanostructures offers tailored functionalization with applications in DNA nanotechnology.
The supramolecular assembly of tetraphenylethylene (TPE)–DNA conjugates is presented. The length of the TPE sticky ends exerts a pronounced effect on the formation of aggregation-induced emission (AIE)-active vesicles.![]()
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