A naked-eye and ratiometric near-infrared probe for palladium via modulation of a π-conjugated system of cyanines

被引：103

作者：

Wang, Xiaohang

Guo, Zhiqian ^{[1
]}

Zhu, Shiqin

Tian, He

Zhu, Weihong

机构：

[1] E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2014年 / 50卷 / 88期

关键词：

DISSOLVED-OXYGEN SENSOR; FLUORESCENT-PROBES; IMAGING PALLADIUM; TURN-ON; PD2+; PLATINUM; CHEMOSENSOR; CYSTEINE;

D O I：

10.1039/c4cc05871b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A ratiometric and colorimetric cyanine-based palladium sensor with an excellent selectivity and sensitivity has been designed. Notably, the modulation of pi-conjugated electrons in cyanine dyes can result in a ratiometric fluorescence change with a large Stokes shift (270 nm), especially for realizing palladium detection in aqueous samples using indicator paper and in living cells by ratiometric mode. The limit of detection is as low as 0.3 ppb.

引用

页码：13525 / 13528

页数：4

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