文献类型：期刊文献

英文题名：A smart luminescent metal-organic framework-based logic system for simultaneous analysis of copper ions and hydrogen sulfide

作者：Shu, Yufang[1];Hao, Ji-Na[1];Niu, Dechao[1];Li, Yongsheng[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Lab Low Dimens Mat Chem,Minist Educ,Key Lab Ultra, Shanghai 200237, Peoples R China

年份：2020

卷号：8

期号：25

起止页码：8635

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY C

收录：;EI(收录号：20202808931002);WOS:【SCI-EXPANDED(收录号:WOS:000545331300028)】；

基金：This work was financially supported by the National Key Research and Development Program of China (Grant No. 2018YFC1105702 and 2016YFA0203700), the National Natural Science Foundation of China for Innovative Research Groups (No. 51621002), the National Natural Science Foundation of China (Grant No. 21805087), Shanghai Sailing Program (18YF1405900), China Postdoctoral Science Foundation (2017M621383), Program of Shanghai Academic/Technology Research Leader (18XD1401400), Basic Research Program of Shanghai (17JC1404702), Leading talents in Shanghai in 2018, The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, The 111 project (B14018).

语种：英文

外文关键词：Computer circuits - Hydrogen sulfide - Luminescence - Zirconium compounds - Copper compounds - Crystalline materials - Metal analysis - Metals - Organometallics - Metal ions

摘要：Simultaneous detection of multiple targets is in imperative demand but is challenging for analysis technology. In this study, a novel, multi-input luminescent logic system based on a nanoscale Zr(iv)/Eu(iii) metal-organic framework (Zr-pydc-Eu) is designed for simultaneous identification and quantification of copper ions and hydrogen sulfide, which are considered to be not only toxic species in the environment but also associated with various physiological and pathological processes in the human body. In the MOF-based logic gate, pyridine-2,5-dicarboxylic acid (pydc) behaves as both the energy donor and the metal-chelating site, the photoactive Eu(3+)ions function as the luminescence signal reporter/output, and the target analytes (Cu(2+)and H2S) serve as energy modulators/inputs. By using the specific Cu(2+)ions as a single input among various metal ions, the NOT logic operation is realized in Zr-pydc-Eu with the output switching from "1" to "0". With the sequentially restored output from "0" to "1" by H2S input over the biologically relevant species, the IMPLICATION logic gate is implemented. Such features enable this Zr-pydc-Eu logic system to be an effective and smart platform for analyzing both Cu(2+)and H2S with a low detection limit (10(-8)M) and a real-time response (<2 min), presenting significant potentials for multiplex analysis application in human health monitoring.