Title of article
A squaraine and Hg2+-based colorimetric and “turn on” fluorescent probe for cysteine
Author/Authors
Lin، نويسنده , , Qian and Huang، نويسنده , , Yangwei and Fan، نويسنده , , Juan and Wang، نويسنده , , Ruyong and Fu، نويسنده , , Nanyan، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2013
Pages
7
From page
66
To page
72
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.
Keywords
mercury , Squaraine , Fluorescent chemosensor , Cysteine
Journal title
Talanta
Serial Year
2013
Journal title
Talanta
Record number
1668034
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