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Design of two-photon absorbing fluorophores for FRET antenna-core oxygen probes

Abstract

Four two-photon absorbing fluorophores A1-A4 are reported and their spectroscopic properties analyzed for use, in combination with palladium-porphyrinato complexes C1 and C2, as two-photon absorbing antennas and energy donor in 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 the 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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Publication details

The article was received on 21 Dec 2017, accepted on 31 Jan 2018 and first published on 31 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ05073A
Citation: New J. Chem., 2018, Accepted Manuscript
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    Design of two-photon absorbing fluorophores for FRET antenna-core oxygen probes

    Z. Zheng, M. M. Ayhan, Y. Liao, N. Calin, C. Bucher, C. Andraud and Y. Bretonnière, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ05073A

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