申请人:Chang Suk-Kyu
公开号:US20080255346A1
公开(公告)日:2008-10-16
A mercury selective fluorescent chemosensor for detecting mercury ions (Hg
2+
) by a compound represented by formula 1 is provided. A novel fluorescent sensitive compound prepared by introducing two aminopyrene functions as a fluorescent sensitive moiety into a binding site of the compound represented by the formula 1, is used for selectively detecting mercury ions (Hg
2+
) is also provided. The mercury selective fluorescent sensitive chemosensor is a switch type chemosensor having ON-OFF-type Hg
2+
-selective fluorescence quenching behavior and is not affected by other coexistent metal ions. The changes in fluorescence of the compounds represented by formula 1 were analyzed by ratiometric approach using monomer and excimer emissions of the pyrene fluorophore to selectively signal the concentration of mercury ions (Hg
2+
). The chemosensor can detect mercury ions in a micromolar unit even in a solution including an excess of water. Accordingly, the mercury selective fluorescent chemosensor for detecting mercury ions (Hg
2+
) can be used effectively in environmental and medical applications.
提供一种用于检测汞离子(Hg2+)的汞选择性荧光化学传感器,该传感器由代表式1的化合物提供。还提供了一种新型荧光敏感化合物,通过将两个氨基芘功能引入代表式1的化合物的结合位点作为荧光敏感基团,用于选择性检测汞离子(Hg2+)。该汞选择性荧光敏感化学传感器是一种开关型传感器,具有ON-OFF型Hg2+选择性荧光猝灭行为,并不受其他共存金属离子的影响。通过使用芘荧光团的单体和激聚物发射的比率法分析代表式1的化合物的荧光变化,以选择性地信号汞离子(Hg2+)的浓度。该化学传感器可以在包含过量水的溶液中以微摩尔单位检测汞离子。因此,用于检测汞离子(Hg2+)的汞选择性荧光化学传感器可以有效应用于环境和医学领域。