化学
发光
氨基酸
甲酸
金属有机骨架
荧光
化学稳定性
组合化学
检出限
配体(生物化学)
酰胺
有机化学
色谱法
生物化学
吸附
材料科学
物理
受体
光电子学
量子力学
作者
Runzhong Guo,The-Hung Mai,Zhenni Yang,Haiying Wang,Hui-Yan Liu
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-10-20
卷期号:62 (44): 18209-18218
被引量:3
标识
DOI:10.1021/acs.inorgchem.3c02715
摘要
A luminescent Tb-MOF with excellent stability and dual-emitting properties was constructed with an amide-functionalized tetracarboxylate ligand. Tb-MOFs were initially assembled on one-dimensional Tb3+ chains, then formed a two-dimensional double–decker layer through the synergistic linking of organic ligands and bridging formic acid anions, and further fabricated the final three-dimensional structure through the connection of the organic ligands. Powder X-ray diffraction experiments revealed that Tb-MOFs not only exhibited excellent stability in water but also maintained structural integrity in the pH range of 2–12. Importantly, this Tb-MOF provided the first example of a metal–organic framework (MOF)-based luminescence sensor that can simultaneously detect two acid amino acids (aspartic and glutamic acids) through a turn-off sensing mechanism and two basic amino acids (lysine and arginine acids) through unusual turn-on and turn-off-on sensing mechanisms. Moreover, high sensitivity, low detection limit, and excellent recyclability of this sensor endow Tb-MOFs with great potential as a highly efficient amino acid fluorescence sensor in chemical detection and biological environments.
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