A squaraine and Hg2+-based colorimetric and 'turn on' fluorescent probe for cysteine - Details

author：

Lin, Qian (Lin, Qian.) ^[1] | Huang, Yangwei (Huang, Yangwei.) ^[2] | Fan, Juan (Fan, Juan.) ^[3] | Wang, Ruyong (Wang, Ruyong.) ^[4] | Fu, Nanyan (Fu, Nanyan.) ^[5]

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Abstract：

A　novel　squaraine　derivative　(SQ-1)　was　synthesized　and　characterized　for　the　determination　of　cysteine.　Binding　with　Hg2+　as　a　fluorescent　quencher　to　SQ-1　leads　to　absorption　and　emission　turn-off.　More　significantly,　the　SQ-1-Hg2+　complex　exhibits　a　dual-channel　chromofluorogenic　responses　to　biologically　important　cysteine　with　a　high　sensitivity　and　selectivity　over　other　natural　amino　acids,　along　with　a　low　detection　limit　of　36.7　nM.　©　2013　Elsevier　B.V.

Keyword：

Amino acids Fluorescence Mercury compounds Mercury (metal)

Community：

[ 1 ] [Lin, Qian]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 2 ] [Huang, Yangwei]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 3 ] [Fan, Juan]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 4 ] [Wang, Ruyong]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China
[ 5 ] [Fu, Nanyan]Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Ministry of Education, Fuzhou, Fujian 350108, China

Reprint 's Address：

Email：

nanyan_fu@fzu.edu.cn

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Source ：

Talanta

ISSN： 0039-9140

Year： 2013

Volume： 114

Page： 66-72

3 . 5 1 1

JCR@2013

5 . 6 0 0

JCR@2023

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 31

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 3

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