Selective Fluorogenic and Chromogenic Probe for Detection of Silver Ions and Silver Nanoparticles in Aqueous Media

被引：370

作者：

Chatterjee, Amrita

Santra, Mithun

Won, Nayoun

Kim, Sungjee

Kim, Jae Kyung

Kim, Seung Bin

Ahn, Kyo Han ^{[1
]}

机构：

[1] POSTECH, Dept Chem, San 31, Pohang 790784, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 06期

关键词：

ESCHERICHIA-COLI; BINDING; CHEMOSENSORS; RECEPTOR; DESIGN;

D O I：

10.1021/ja807230c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel rhodamine-based fluorogenic and chromogenic probe for Ag+ ions in aqueous media is developed, which can be also used for the detection of AgNPs. The sensing mechanism is based on irreversible tandem ring-opening and -forming processes promoted by Ag+-coordination to the iodide of the probe, which is accompanied by both color and turn-on type fluorescence changes. The probe shows remarkably high selectivity over other metal ions and detects silver ions up to 14 ppb.

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收藏

页码：2040 / +

页数：3

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