Development of a borondipyrromethene-based Zn2+ fluorescent probe: solvent effects on modulation sensing ability

被引：57

作者：

Zhao, Chunchang ^{[1
]}

Zhang, Yulin

Feng, Peng

Cao, Jian

机构：

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

来源：

DALTON TRANSACTIONS | 2012年 / 41卷 / 03期

基金：

美国国家科学基金会;

关键词：

ZINC IONS; CHARGE-TRANSFER; VISIBLE-LIGHT; IMAGING ZINC; SENSOR; DESIGN; CHEMOSENSOR; FLUOROPHORE; BIOLOGY; CHEMISTRY;

D O I：

10.1039/c1dt10797f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A borondipyrromethene-based Zn2+ fluorescent probe BODPAQ was designed and synthesized. The chelators in BODPAQ, 2,2'-dipicolylamine (DPA) and 8-aminoquinoline (AQ), coordinate to Zn2+ in a synergic manner. As a result, BODPAQ displays high Zn2+ selectivity with a dramatic enhanced emission accompanied by a notable hypsochromic shift due to the binary inhibition effect of PET and ICT mechanisms, enabling the detection of Zn2+ by both ratiometric and normal turn-on fluorescence methods in acetonitrile. Interestingly, the sensitivity of BODPAQ towards Zn2+ changes upon varying the compositions of buffer solutions. In 3-morpholinopropanesulfonic acid (MOPS) buffer aqueous solution (50% CH3CN), BODPAQ displays the highest sensitivity for Zn2+, while in citrate-phosphate buffer, BODPAQ shows no response to Zn2+.

引用

页码：831 / 838

页数：8

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