Issue 10, 2018

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 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.

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

Supplementary files

Article information

Article type
Paper
Submitted
21 pro 2017
Accepted
31 sij 2018
First published
31 sij 2018

New J. Chem., 2018,42, 7914-7930

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, 42, 7914 DOI: 10.1039/C7NJ05073A

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