Design of two-photon absorbing fluorophores for FRET antenna-core oxygen probes?
New Journal of Chemistry Pub Date: 2018-01-31 DOI: 10.1039/C7NJ05073A
Abstract
Four two-photon absorbing fluorophores A1–A4 are reported and their spectroscopic properties are analyzed for use, in combination with palladium–porphyrinato complexes C1 and C2, as two-photon absorbing antennas and energy donors for FRET-based antenna-core oxygen sensitive phosphorescent probes. The best antenna A3 displaying the highest biphotonic brightness Φ × σTPA = 210 GM at 800 nm was then directly grafted to the phosphorescent Pd–porphyrin cores via click chemistry to give new two-photon oxygen sensitive phosphorescent probes P1 and P2, in which energy transfer from the antenna to the core was demonstrated following two-photon excitation.
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Journal Name：New Journal of Chemistry
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CAS no.: 89640-58-4
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