文献类型：期刊文献

英文题名：Preparation of carbon dots-doped terbium phosphonate coordination polymers as ratiometric fluorescent probe for citrate detection

作者：Yu, Bohao[1];Wang, Yajie[2];Sun, Mengyao[1];Luo, Yongquan[1];Yu, Haoran[1];Zhang, Lei[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Anhui Med Coll, Dept Pharm, Hefei 230601, Peoples R China

年份：2022

卷号：268

外文期刊名：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY

收录：;EI(收录号：20214811255992);WOS:【SCI-EXPANDED(收录号:WOS:000751815300004)】；

基金：This work was funded by the National Natural Science Foundation of China (21707034), Natural Science Foundation of Educational Department of Anhui Province (No. KJ2020A0856), Fundamental Research Funds for the Central Universities (No. 222201814020) and Science and Technology Commission of Shanghai Municipality (No. 20142200900).

语种：英文

外文关键词：Carbon dots; Terbium coordination polymers; Ratiometric; Fluorescent probe; Citrate

摘要：In this work, carbon dots-doped terbium phosphonate coordination polymers (CDs-GMP/Tb) were designed and prepared as ratiometric fluorescent probes for the detection of citrate. The as-prepared CDs-GMP/Tb are prepared and have the merits of high photostability, low toxicity, and excellent biocompatibility. The as-prepared CDs-GMP/Tb as ratiometric fluorescent probes also have better anti-interference ability and stability compared with the traditional single fluorescent probe. The surface morphology, fabrication, and spectroscopy were characterized through a variety of instruments. It confirms that the probes exhibited network structure doping carbon dots. With the addition of citrate, the fluorescence of GMP/Tb at 545 nm was significantly quenched, contrasting to the enhancement of fluorescence of CDs at 454 nm. Under optimum conditions, the detection limit for citrate was 0.47 mu M, with a linear range of 0-200 mu M between citrate concentrations and I-545/I-454. It has high sensitivity, selective, and rapid detection for citrate. The as-prepared CDs-GMP/Tb as ratiometric fluorescent probes were also used for imaging citrate in living cells. These experiment results showed that CDs-GMP/Tb as ratiometric fluorescent probes could be applied to trace citrate detection in the environmental and biological fields. (C) 2021 Elsevier B.V. All rights reserved.