Amino-functionalized Al-MOF modulated TpTt-COF with dual-emission for fluorescent and optosmart detecting tetracycline in food samples

被引：20

作者：

Li, Chunhua ^{[1
,2
,3
]}

Xu, Xiao ^{[1
,2
]}

Ji, Yixin ^{[1
,2
]}

Wang, Fuli ^{[1
,2
]}

Shi, Yubo ^{[1
,2
]}

Zhao, Xin ^{[1
,2
,3
]}

Liu, Jue ^{[1
,2
,3
]}

Yang, Ying ^{[1
,2
,3
]}

Zhao, Zhilei ^{[1
,2
,3
]}

机构：

[1] Hebei Univ, Coll Qual & Tech Supervis, Baoding 071002, Peoples R China

[2] Hebei Univ, Natl & Local Joint Engn Res Ctr Metrol Instrument, Baoding 071002, Peoples R China

[3] Hebei Univ, Hebei Key Lab Energy Metering & Safety Testing Tec, Baoding 071002, Peoples R China

来源：

FOOD CHEMISTRY | 2023年 / 425卷

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

Metal -organic framework; Covalent -organic framework; Fluorescence detection; Visual analysis; Antibiotic residues; Food safety; ORGANIC FRAMEWORK; VISUAL DETECTION;

D O I：

10.1016/j.foodchem.2023.136476

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Tetracycline residues in animal-derived food pose serious harm to human health, making it demanded to develop simple and sensitive method for detecting tetracycline. Herein, a dual-emission synchronous response fluorescence probe is reported based on amino-functionalized Al-MOF modulated TpTt-COF (donate as NMT). NMT exhibits excellent dual-emission at 455 and 575 nm under single excitation. Tetracycline is sensitively detected through quenching the dual-emission of NMT. NMT specifically recognizes tetracycline through intermolecular hydrogen bonding between -OH/- NH2 of tetracycline and deprotonated O-/- NH- /C--N of NMT. A calibration curve is built between the fluorescence ratio and the tetracycline concentration with a detection limit of 0.014 & mu;mol/L. NMT is employed to detect tetracycline in milk, pork and chicken, and displays satisfactory recoveries of 94.39-105.67%, respectively. The optosmart sensor based on NMT and smartphone has been constructed for visually detecting tetracycline. This method provides routes to construct MOF-COF fluorescence probes and has good prospects in food analysis.

引用

页数：9

共 1 条

[1] Amino-Functionalized Al-MOF for Fluorescent Detection of Tetracyclines in Milk
Li, Chunhua
Zhu, Li
Yang, Weixia
He, Xie
Zhao, Sheliang
Zhang, Xiaoshuo
Tang, Wenzhi
Wang, Jianlong
Yue, Tianli
Li, Zhonghong
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2019, 67 (04) : 1277 - 1283

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