The nature of the sensitiser substituent determines quenching sensitivity and protein affinity and influences the design of emissive lanthanide complexes as optical probes for intracellular use

Filip Kielar; Ga-Lai Law; Elizabeth J. New; David Parker

doi:10.1039/B804369H

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Organic & Biomolecular Chemistry

Issue 13, 2008

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The nature of the sensitiser substituent determines quenching sensitivity and protein affinity and influences the design of emissive lanthanide complexes as optical probes for intracellular use

Filip Kielar , Ga-Lai Law , Elizabeth J. New and David Parker

Org. Biomol. Chem., 2008, 6, 2256-2258

DOI: 10.1039/B804369H
Received 13 Mar 2008, Accepted 07 May 2008
First published on the web 16 May 2008

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Abstract
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Introduction of different substituents at the 7-position of a sensitising azaxanthone group in a series of emissive Eu and Tb complexes can determine the intracellular uptake and distribution profile and may be linked to modulation of protein affinity.

Supplementary Info

Details of complex synthesis and purification, as well as protein–relaxivity titrations for selected Gd complexes and Eu emission spectra in the presence of protein
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Organic & Biomolecular Chemistry

The nature of the sensitiser substituent determines quenching sensitivity and protein affinity and influences the design of emissive lanthanide complexes as optical probes for intracellular use

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