A highly selective fluorescent chemosensor for Pb2+

Ji Young Kwon; Yun Jung Jang; Yoon Ju Lee; Kwan Mook Kim; Mi Sook Seo; Wonwoo Nam; Juyoung Yoon

doi:10.1021/ja051075b

A highly selective fluorescent chemosensor for Pb²⁺

Ji Young Kwon, Yun Jung Jang, Yoon Ju Lee, Kwan Mook Kim, Mi Sook Seo, Wonwoo Nam, Juyoung Yoon

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

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Abstract

A new fluorescent sensor based on rhodamine B for Pb²⁺ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb²⁺ over other metal ions examined in acetonitrile. Upon the addition of Pb²⁺, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn ²⁺. The signal transduction occurs via of reversible CHEF (chelation-enhanced fluorescence) with this inherent quenching metal ion.

Original language	English
Pages (from-to)	10107-10111
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	127
Issue number	28
DOIs	https://doi.org/10.1021/ja051075b
State	Published - 20 Jul 2005

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10.1021/ja051075b

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title = "A highly selective fluorescent chemosensor for Pb2+",

abstract = "A new fluorescent sensor based on rhodamine B for Pb2+ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb2+ over other metal ions examined in acetonitrile. Upon the addition of Pb2+, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn 2+. The signal transduction occurs via of reversible CHEF (chelation-enhanced fluorescence) with this inherent quenching metal ion.",

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AU - Kwon, Ji Young

AU - Jang, Yun Jung

AU - Lee, Yoon Ju

AU - Kim, Kwan Mook

AU - Seo, Mi Sook

AU - Nam, Wonwoo

AU - Yoon, Juyoung

PY - 2005/7/20

Y1 - 2005/7/20

N2 - A new fluorescent sensor based on rhodamine B for Pb2+ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb2+ over other metal ions examined in acetonitrile. Upon the addition of Pb2+, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn 2+. The signal transduction occurs via of reversible CHEF (chelation-enhanced fluorescence) with this inherent quenching metal ion.

AB - A new fluorescent sensor based on rhodamine B for Pb2+ was synthesized. The new fluorescent sensor showed an extreme selectivity for Pb2+ over other metal ions examined in acetonitrile. Upon the addition of Pb2+, an overall emission change of 100-fold was observed, and the selectivity was calculated to be 200 times that of Zn 2+. The signal transduction occurs via of reversible CHEF (chelation-enhanced fluorescence) with this inherent quenching metal ion.

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JO - Journal of the American Chemical Society

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ER -

A highly selective fluorescent chemosensor for Pb2+

Abstract

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A highly selective fluorescent chemosensor for Pb²⁺