Visual detection of copper ions based on azide- and alkyne-functionalized polydiacetylene vesicles

被引：82

作者：

Xu, Qingling ^{[2
]}

Lee, Kyung Mi ^{[1
]}

Wang, Fang ^{[2
]}

Yoon, Juyoung ^{[1
,2
]}

机构：

[1] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea

[2] Ewha Womans Univ, Dept Bioinspired Sci WCU, Seoul 120750, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 39期

基金：

新加坡国家研究基金会;

关键词：

GOLD NANOPARTICLES; ASCORBIC-ACID; FLUORESCENT; SENSOR; CU2+;

D O I：

10.1039/c1jm11660f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new method for visual detection of Cu2+ based on azide-and alkyne-functionalized polydiacetylene (PDA-aa) vesicles has been developed. In the presence of ascorbic acid, Cu2+ can be reduced to Cu+ and catalyze the click reaction between the two functional groups. After incubation with Cu2+ and ascorbic acid, a PDA-aa solution changed its color from blue to red, which was attributed to conformational transition of the conjugated backbone. Other metal ions were explored but only induced negligible color changes. This method provides a naked eye detection of Cu2+ in water without the aid of complex instruments.

引用

页码：15214 / 15217

页数：4

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