Responsive and reactive terbium complexes with an azaxanthone sensitiser and one naphthyl group: applications in ratiometric oxygen sensing in vitro and in regioselective cell killing

Ga-Lai Law; Robert Pal; Lars O. Palsson; David Parker; Ka-Leung Wong

doi:10.1039/B920222F

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Chemical Communications

Issue 47, 2009

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Responsive and reactive terbium complexes with an azaxanthone sensitiser and one naphthyl group: applications in ratiometric oxygen sensing in vitro and in regioselective cell killing

Ga-Lai Law , Robert Pal , Lars O. Palsson , David Parker and Ka-Leung Wong

Chem. Commun., 2009, 7321-7323

DOI: 10.1039/B920222F
Received 29 Sep 2009, Accepted 20 Oct 2009
First published on the web 02 Nov 2009

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Abstract
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A terbium complex has been designed that may be used to sensitise formation of singlet oxygen (ϕ_em 12%), allowing the creation of a ratiometric sensory system for pO₂ (versus the insensitive Eu analogue) and the definition of a reactive probe that can be used to cause local damage to cells loaded with the complex and exposed to laser excitation.

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Synthesis and characterisation data for [Ln·L]OAc;variation of emission spectra as f(pO) in 50/50 water–serum;spectral emission behaviour of [Eu/Tb·L] in 50% aq. humanserum albumin solution and low T emission spectra for Gd complexes
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Ga-Lai Law
Robert Pal
Lars O. Palsson
David Parker
Ka-Leung Wong

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Chemical Communications

Responsive and reactive terbium complexes with an azaxanthone sensitiser and one naphthyl group: applications in ratiometric oxygen sensing in vitro and in regioselective cell killing

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