A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity

被引：39

作者：

Lv, Yuanyuan ^{[1
]}

Cao, Mingda ^{[1
]}

Li, Jiakai ^{[1
]}

Wang, Junbo ^{[1
]}

机构：

[1] Zhejiang Univ City Coll, Sch Med, Hangzhou 310015, Zhejiang, Peoples R China

来源：

SENSORS | 2013年 / 13卷 / 03期

关键词：

fluorescent sensor; ratiometric sensor; porphyrin; zinc ion; RED-SHIFT; ZN2+; CHEMOSENSOR; PROBE; BIOLOGY; DESIGN;

D O I：

10.3390/s130303131

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new fluorescent Zn2+ chemosensor (P1) based on a functionalized porphyrin was synthesized and characterized. P1 displayed dramatic ratiometric variations in absorption and fluorescent emission spectra upon exposure to Zn2+ due to the formation of a 1:1 Zn2+/P1 complex. The sensor also exhibited high selectivity and sensitivity toward Zn2+ over other common metal ions in the physiological pH range with a detection limit of 1.8 mu M. The sensor showed fast response times and excellent reproducibility, thus confirming its potential applicability as a fluorescent sensor for Zn2+ sensing.

引用

页码：3131 / 3141

页数：11

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