Collaborative compounding of metal-organic frameworks and lanthanide coordination polymers for ratiometric visual detection of tetracycline

被引：40

作者：

Gan, Ziyu ^{[1
]}

Zhang, Wen ^{[1
]}

Shi, Jiyong ^{[1
]}

Xu, Xuechao ^{[1
]}

Hu, Xuetao ^{[1
]}

Zhang, Xinai ^{[1
]}

Wang, Xin ^{[1
]}

Arslan, Muhammad ^{[1
]}

Xiao, Jianbo ^{[2
]}

Zou, Xiaobo ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Univ Macau, Inst Chinese Med Sci, State Key Lab Qual Res Chinese Med, Taipa, Macao, Peoples R China

来源：

DYES AND PIGMENTS | 2021年 / 194卷 / 194期

基金：

中国国家自然科学基金;

关键词：

Dyes; Europium ions; Sensitive detection; MOF-5; Fluorescence sensor; Milk and pork; FLUORESCENCE; MILK; ANTIBIOTICS; DEGRADATION; SENSOR; DOTS;

D O I：

10.1016/j.dyepig.2021.109545

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In current study, a ratiometric fluorescence sensor (FSS@MOF-5/GMP-Eu) based on self-assembly of Eu3+ and guanosine monophosphate (GMP) on the surface of fluorescein loaded MOF-5 (FSS@MOF-5) is designed and fabricated for visual detection of tetracycline (TC). As the TC recognizer, Eu3+ specifically reacts with TC to form EuTC complex and results in fluorescence enhancement due to the antenna effect. With the TC addition, visible fluorescence changes from yellowish-green to orange and finally to red can be easily observed by naked eyes. The proposed FSS@MOF-5/GMP-Eu displays an excellent linear relationship with TC (0-20 mu M), providing a low detection limit of 18.5 nM. The ratiometric sensor exhibits excellent selectivity to TC against other interferents owing to the formation of EuTC complex. The prepared FSS@MOF-5/GMP-Eu can be employed for TC detection in milk and pork and will also be valuable for use in fluorescence sensor applications.

引用

页数：10

共 37 条

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