Fluorene-based chemodosimeter for "turn-on" sensing of cyanide by hampering ESIPT and live cell imaging

被引：56

作者：

Bera, Manas Kumar ^{[1
]}

Chakraborty, Chanchal ^{[1
]}

Singh, Pradeep Kumar ^{[2
]}

Sahu, Chandan ^{[3
]}

Sen, Kaushik ^{[3
]}

Maji, Samir ^{[2
]}

Das, Abhijit Kumar ^{[3
]}

Malik, Sudip ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Polymer Sci Unit, Kolkata 700032, India

[2] Indian Assoc Cultivat Sci, Dept Spect, Kolkata 700032, India

[3] Indian Inst Technol, Dept Biosci & Bioengn, Bombay 400076, Maharashtra, India

来源：

JOURNAL OF MATERIALS CHEMISTRY B | 2014年 / 2卷 / 29期

关键词：

ANION RECOGNITION; SELECTIVE RECOGNITION; SODIUM-CYANIDE; SENSOR; RECEPTORS; MOLECULES; MECHANISM; DENSITY; ION;

D O I：

10.1039/c4tb00388h

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

A new salicylaldehyde appended fluorene-based chemodosimeter (FSal) has been designed by taking consideration of the special nucleophilicity of cyanide ion. FSal shows selective affinity towards CN- over other anions (namely F-, Br-, NO3-, ClO4-, N-3(-), H2PO4-, AcO-, I-, Cl-, and NO2-) through turn-on fluorescence with a minimum detection limit of 0.06 ppm. The turn-on fluorescence of the FSal-CN complex resulting from hampering ESIPT is also supported by DFT and TDDFT calculations. Biological compatibility and live cell imaging of this unique probe have also been explored.

引用

页码：4733 / 4739

页数：7

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