A red-shifted two-photon-only caging group for three-dimensional photorelease
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 visual...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
09 Feb 2018
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| In: |
Chemical science
Year: 2018, Jahrgang: 9, Heft: 10, Pages: 2797-2802 |
| ISSN: | 2041-6539 |
| DOI: | 10.1039/C7SC05182D |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/C7SC05182D Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2018/sc/c7sc05182d 
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| Verfasserangaben: | Yvonne Becker, Erik Unger, Manuela A.H. Fichte, Daniel A. Gacek, Andreas Dreuw, Josef Wachtveitl, Peter J. Walla and Alexander Heckel |
| Zusammenfassung: | 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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| Beschreibung: | Gesehen am 10.03.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 2041-6539 |
| DOI: | 10.1039/C7SC05182D |