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Selectively chemodosimetric detection of Hg(II) in aqueous media

Submission Date :
2 / 12 / 2008 , 11 : 05 : 50
Abstract Number :
101021208628
Presenting Type:
Poster Presentation
Presenting Area :
유기화학
Authors :
이민희, 정지희, 김종승
고려대학교 화학과,
Assigned Code :
32P164포 Assigend Code Guideline
Presenting Time :
금 <발표Ⅴ>
A new highly sensitive and selective near-infrared (NIR) fluorescent probe bearing Nile Red and benzoyl thiourea group, based on Hg(II)-induced desulfurization reaction, was designed and synthesized. And its chemodosimetric behaviors toward metal cations were investigated by UV/Vis and fluorescence spectroscopies. Amongst various metal cations tested in buffered aqueous solution (HEPES buffer, 10 mM, pH 7.4), only Hg(II) ion responses to irreversible color changes (blue → pink), along with distinctive blue shifts in UV/Vis and fluorescence spectra. Moreover, the NIR fluorescent probe can be applicable to macrophage cells for the monitoring of Hg(II).