超分子检测神经毒剂模拟物的荧光 Zn-Salen 寡聚物受体
Supramolecular Detection of a Nerve Agent Simulant by Fluorescent Zn-Salen Oligomer Receptors.
机构信息
Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95100 Catania, Italy.
CNR-IPCB Istituto per i Polimeri, Compositi e Biomateriali, Via P. Gaifami 18, I-95126 Catania, Italy.
出版信息
Molecules. 2019 Jun 8;24(11):2160. doi: 10.3390/molecules24112160.
Abstract
We report on new Zn-Salen oligomer receptors able to recognize a nerve agent simulant, namely dimethyl methylphosphonate (DMMP), by a supramolecular approach. In particular, three Zn-Salen oligomers (Zn-Oligo-A, -B, and -C), differing by the length distribution, were obtained and characterized by NMR, Gel Permeation Chromatography (GPC), UV-Vis, and fluorescence spectroscopy. Furthermore, we investigated their recognition properties towards DMMP by using fluorescence measurements. We found that the recognition ability depends on the length of the oligomeric chain, and the Zn-Oligo-C shows a binding constant value higher than those already reported in literature for the DMMP detection.
摘要
我们报告了新的 Zn-Salen 低聚物受体，它们能够通过超分子方法识别神经毒剂模拟物，即二甲甲基膦酸酯（DMMP）。具体来说，获得了三种 Zn-Salen 低聚物（Zn-Oligo-A、-B 和 -C），它们的长度分布不同，并通过 NMR、凝胶渗透色谱（GPC）、UV-Vis 和荧光光谱进行了表征。此外，我们还通过荧光测量研究了它们对 DMMP 的识别特性。我们发现，识别能力取决于低聚物链的长度，而 Zn-Oligo-C 的结合常数值高于文献中已报道的 DMMP 检测值。
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