A red-shifted two-photon-only caging group for three-dimensional photorelease† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c7sc05182d

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… CONTINUE READING