| Title: | Functionalized luminescent covalent organic frameworks hybrid material as smart nose for the diagnosis of Huanglongbing |
| Address: | "Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China. School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China. byan@tongji.edu.cn" |
| ISSN/ISBN: | 2050-7518 (Electronic) 2050-750X (Linking) |
| Abstract: | "Quantitative identification of several volatile organic compounds (VOCs) associated with the same disease provides a strong guarantee of the accurate analysis of the disease. Designing a single luminescent material to interact differently with multiple analytes can generate response patterns with remarkable diversity. Here, a highly green luminescent imine-based 2D COF (TtDFP) is designed and synthesized. TtDFP has ultrasensitive detection performance for trace water in organic solvent. Constructing a ratiometric fluorescence sensor can improve sensitivity for detecting analytes. To contrast the fluorescence signals of Eu(3+) and COFs in sensing assays, a simple postsynthetic modification (PSM) method is used to introduce Eu(3+) into TtDFP. The obtained red luminescent hybrid material Eu(3+)@TtDFP EVA film can be a fluorescent nose capable of 'sniffing out' and quantifying VOCs (GA and PhA) associated with Huanglongbing (HLB, a devastating disease of citrus) at ppb levels. This work provides a technique of developing functionalized COF hybrid material to facilitate the distinction of various VOCs, which can also be extended to monitor the levels of other VOCs relevant to human health" |
| Keywords: | "*Citrus Humans *Metal-Organic Frameworks Spectrometry, Fluorescence/methods Water;" |
| Notes: | "MedlineWang, Jinmin Zhao, Limin Yan, Bing eng Research Support, Non-U.S. Gov't England 2022/07/26 J Mater Chem B. 2022 Aug 4; 10(30):5835-5841. doi: 10.1039/d2tb01185a" |
