Design of two-photon absorbing fluorophores for FRET antenna-core oxygen probes. (22nd February 2018)

• Record Type: Journal Article
• Authors: Zheng, Zheng; Ayhan, Mehmet Menaf; Liao, Yuan-Yuan; Calin, Nathalie; Bucher, Christophe; Andraud, Chantal; Bretonnière, Yann
• Is Part Of: New journal of chemistry. Volume 42:Number 10(2018)
• Page Start: 7914
• Page End: 7930
• Publication Date: 2018-02-22
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj05073a
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Four two-photon absorbing fluorophoresA1–A4 are reported and their spectroscopic properties are analyzed for use, in combination with palladium–porphyrinato complexesC1 andC2, as two-photon absorbing antennas and energy donors for FRET-based antenna-core oxygen sensitive phosphorescent probes. Abstract : Four two-photon absorbing fluorophoresA1–A4 are reported and their spectroscopic properties are analyzed for use, in combination with palladium–porphyrinato complexesC1 andC2, as two-photon absorbing antennas and energy donors for FRET-based antenna-core oxygen sensitive phosphorescent probes. The best antennaA3 displaying the highest biphotonic brightness Φ × σ TPA = 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 probesP1 andP2, in which energy transfer from the antenna to the core was demonstrated following two-photon excitation.