Fluorogenic Hg2+-selective chemodosimeter derived from 8-hydroxyquinoline.

doi:10.1021/OL060788B

Paper

Fluorogenic Hg2+-selective chemodosimeter derived from 8-hydroxyquinoline.

Published Jul 7, 2006 · K. Song, J. Kim, Sang Mi Park

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Abstract

[reaction: see text] A new thioamide derivative of 8-hydroxyquinoline-benzothiazole was prepared, and its fluorogenic chemodosimetric behaviors toward transition-metal ions were investigated. The thioamide derivative showed highly Hg2+-selective fluorescence enhancing properties (167-fold) in 30% aqueous acetonitrile solution. The selective and sensitive signaling behaviors were found to originate from the Hg2+ ion induced transformation of the very weak fluorescent thioamide derivative into a highly fluorescent amide analogue.

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The new thioamide derivative of 8-hydroxyquinoline-benzothiazole shows highly Hg2+-selective fluorescence enhancing properties, with sensitive signaling behaviors originating from the transformation of the weak fluorescent thioamide derivative into a highly fluorescent amide analogue.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Fluorogenic Hg2+-selective chemodosimeter derived from 8-hydroxyquinoline.

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References

Switching the recognition preference of rhodamine B spirolactam by replacing one atom: design of rhodamine B thiohydrazide for recognition of Hg(II) in aqueous solution.

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The developed rhodamine-based chemodosimeter effectively detects Hg2+ ions in aqueous media, with high selectivity and sensitivity below 2 ppb in aqueous solutions.

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Citations

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