• Medientyp: E-Book; Sonderdruck
  • Titel: A red-shifted two-photon-only caging group for three-dimensional photorelease
  • Beteiligte: Becker, Yvonne [VerfasserIn]; Unger, Erik [VerfasserIn]; Fichte, Manuela A. H. [VerfasserIn]; Gacek, Daniel A. [VerfasserIn]; Dreuw, Andreas [VerfasserIn]; Wachtveitl, Josef [VerfasserIn]; Walla, Peter Jomo [VerfasserIn]; Heckel, Alexander [VerfasserIn]
  • Erschienen: [Erscheinungsort nicht ermittelbar]: Royal Society of Chemistry, 2018
  • Erschienen in: Chemical science ; 9 (2018) 10, p. 2797-2802. DOI 10.1039/c7sc05182d
  • Umfang: 1 Online-Ressource
  • Sprache: Englisch
  • DOI: 10.1039/c7sc05182d
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  • Beschreibung: Based on nitrodibenzofuran (NDBF) a new photocage with higher two-photon action cross section and red-shifted absorption was developed. Due to calculations, a dimethylamino functionality (DMA) was added at ring position 7. The uncaging of nucleobases after two-photon excitation (2PE) could be visualized via double-strand displacement in a hydrogel. With this assay we achieved three-dimensional photorelease of DMA-NDBF-protected DNA orthogonal to NDBF-protected strands. While being an excellent 2P-cage, DMA-NDBF is surprisingly stable under visible-light one-photon excitation (1PE). This case of excitation-specific photochemistry enhances the scope of orthogonal photoregulation.
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