کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
175446 | 458910 | 2016 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Indocyanine based dual optical probe for cyanide in HEPES buffer Indocyanine based dual optical probe for cyanide in HEPES buffer](/preview/png/175446.png)
• A dual optical probe for cyanide with a dramatic color and fluorescence change.
• A water soluble probe with a hydroxyethylindolium unit of 1 and the adduct 1-CN.
• Highly selective response to cyanide with a micromolar limit of detection (2.0 μM).
• A reversible reaction-based probe in the presence of cyanide and Hg(II) ion.
A dual optical probe based on N-hydroxyethylindocyanine was prepared for the selective detection of cyanide in water. The probe exhibited a dramatic red-to-colorless optical change and a fluorescence on–off response in the visible region, displaying high selectivity toward cyanide over other various anions and Cys with a micromolar limit of detection (LOD = 2.0 μM) in an aqueous buffer. Furthermore, the probe underwent a reversible reaction with the probe-cyanide ion adduct in the presence of Hg(II), of which optical changes were easily detected by direct visualization.
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Journal: Dyes and Pigments - Volume 130, July 2016, Pages 251–255