Selective sensor for silver ions built from polyfluorophores on a DNA backbone.
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ABSTRACT:
SUBMITTER: Tan SS
PROVIDER: S-EPMC2966516 | biostudies-literature | 2010 Nov
REPOSITORIES: biostudies-literature
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Selective sensor for silver ions built from polyfluorophores on a DNA backbone.
Tan Samuel S SS Teo Yin Nah YN Kool Eric T ET
Organic letters 20101101 21
To explore a new modular metal ion sensor design strategy, fluorophores and ligands were incorporated into short DNA-like oligomers. Compound 1 was found to function as a selective sensor for Ag(+) in aqueous buffer, where low micromolar concentrations of Ag(+) induce a red-shifted, turn-on fluorescence signal. Experiments with HeLa cells show that 1 can penetrate cells and yield a signal for intracellular Ag(+). This suggests a broadly applicable approach to developing sensors for a wide variet ...[more]
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