Liu Xiang, Li Huijun, Sun Junjun, Shi Jianchao, Xu Zhouqing, Wang Yan
Department of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454000, China.
State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Henan Polytechnic University, Jiaozuo, 454000, China.
Mikrochim Acta. 2024 Dec 30;192(1):45. doi: 10.1007/s00604-024-06874-4.
A HPU-23@Ru@Tb-NH sensor array with light-driven oxidase-mimicking activity and triple-emission fluorescence was developed. It was composed of a Tb-functionalized metal organic framework and Ru(bpy) and applied to the simultaneous detection of Hg, ClO, and PO via differently responsive channels. HPU-23@Ru@Tb-NH had a photoresponsive colorimetric response toward Hg with a LOD as low as 4.18 nM. In addition, the three emissions of the HPU-23@Ru@Tb-NH sensor array were influenced by ClO and PO to varying degrees, causing remarkably distinguishable responses for the fluorescence channels to discriminate ClO and PO from each other. The detection limits of ClO and PO were 12.26 µM and 0.197 nM, respectively. Therefore, this work demonstrates the feasibility of multi-emission and multi-mode sensing platform, which is able to combine the advantages of different strategies for solving the problems of various toxic substances coexisting in the environment while meeting the needs of accurate and precise results and no side interferences.
开发了一种具有光驱动模拟氧化酶活性和三发射荧光的HPU-23@Ru@Tb-NH传感器阵列。它由铽功能化金属有机框架和钌（联吡啶）组成，并通过不同的响应通道用于同时检测汞、次氯酸根和磷酸根。HPU-23@Ru@Tb-NH对汞具有光响应比色响应，检测限低至4.18 nM。此外，HPU-23@Ru@Tb-NH传感器阵列的三种发射受到次氯酸根和磷酸根不同程度的影响，导致荧光通道有明显可区分的响应，从而能够区分次氯酸根和磷酸根。次氯酸根和磷酸根的检测限分别为12.26 µM和0.197 nM。因此，这项工作证明了多发射和多模式传感平台的可行性，该平台能够结合不同策略的优势，在满足准确精确结果且无副作用干扰的同时，解决环境中多种有毒物质共存的问题。
