Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China.
Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China.
ACS Appl Mater Interfaces. 2020 Aug 26;12(34):38124-38131. doi: 10.1021/acsami.0c09940. Epub 2020 Aug 18.
Rapid, facile, and reliable recognition of different antibiotics by self-calibrating luminescent sensors are important for practical requirements. Herein, we design and synthesize a series of EuTb-MOF using a flexible ligand HL (5,5'-(propane-1,3-diylbis(oxy))di-isophthalic acid). With changing reactant time, submicrometer bimetallic with homogeneous morphology was achieved and further fabricated MOF-based membrane combining with polymer materials. A luminescent study indicated that the bimetallic membrane possesses a legible emission peak for Eu and Tb ions, which can act as a self-calibrating luminescent probe for efficiently sensing different antibiotics within a certain concentration range through two-dimensional (2D) readouts based on the emission intensity ratio. Our work first reports an inexpensive and convenience bimetallic MOF-based membrane as a luminescent sensor with self-calibrating to detect various antibiotics, which makes it a potential luminescent sensor for beneficial application.
快速、简便、可靠地识别不同抗生素对于实际需求非常重要。在此，我们设计并合成了一系列 EuTb-MOF，使用了一种柔性配体 HL（5,5'-(丙烷-1,3-二基双(氧基))二异苯二甲酸）。通过改变反应物时间，得到了具有均匀形貌的亚微米级双金属，并进一步与聚合物材料结合制备了基于 MOF 的膜。发光研究表明，该双金属膜具有 Eu 和 Tb 离子清晰的发射峰，可作为自校准发光探针，通过二维（2D）读出基于发射强度比，在一定浓度范围内有效感应不同抗生素。我们的工作首次报道了一种廉价且方便的基于双金属 MOF 的膜作为具有自校准功能的发光传感器来检测各种抗生素，这使其成为一种有潜力的发光传感器，可用于有益的应用。
