A stimuli responsive triplet-triplet annihilation upconversion system and its application as a ratiometric sensor for Fe3+ ions

被引：24

作者：

Chen, Shuoran ^{[1
]}

Chen, Fuming ^{[1
]}

Han, Pengju ^{[1
]}

Ye, Changqing ^{[1
]}

Huang, Suqin ^{[1
]}

Xu, Lei ^{[1
]}

Wang, Xiaomei ^{[1
]}

Song, Yanlin ^{[2
]}

机构：

[1] Suzhou Univ Sci & Technol, Jiangsu Key Lab Environm Funct Mat, Res Ctr Green Printing Nanophoton Mat, Inst Chem Biol & Mat Engn, Suzhou 215009, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Key Lab Green Printing, Beijing 100190, Peoples R China

来源：

RSC ADVANCES | 2019年 / 9卷 / 62期

基金：

中国国家自然科学基金;

关键词：

FLUORESCENT-PROBE; IRON;

D O I：

10.1039/c9ra06524e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A ratiometric fluorescent sensor for the detection of Fe3+ ions is achieved based on triplet-triplet annihilation upconversion (TTA-UC) luminescence. A new anthracene derivative (named as DHTPA) is designed and synthesized and reveals similar optical properties to 9,10-diphenylanthracene (DPA) and is used as a stimuli responsive annihilator in a TTA-UC system due to its complexation ability. As a result, the UC emission can be significantly quenched by Fe3+ ions, while the phosphorescence (PL) emission of sensitizer palladium(ii) octaetylporphyrin (PdOEP) remains nearly constant, which makes the PL signal an appropriate internal reference for the UC signal. The UC and ratio signals (I-UC/I-PL) both reveal a good linear relationship with Fe3+ ion concentration, which for the first time makes the TTA-UC system a perfect ratiometric sensor for Fe3+ ion detection. This sensing method will open a novel avenue to achieve ratiometric sensors in chemical and biological fields.

引用

页码：36410 / 36415

页数：6

共 49 条

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