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一种基于聚合物的新型荧光化学传感器，其包含丙烷 -1,3 -二酮和2,5 -二乙炔基苯部分，用于检测铜（II）和铁（III）。

A New Polymer-Based Fluorescent Chemosensor Incorporating Propane-1,3-Dione and 2,5-Diethynylbenzene Moieties for Detection of Copper(II) and Iron(III).

作者信息

Yang Dongliang, Dai Chunhui, Hu Yanling, Liu Shuli, Weng Lixing, Luo Zhimin, Cheng Yixiang, Wang Lianhui

机构信息

Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210046, China.

Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.

出版信息

Polymers (Basel). 2017 Jul 6;9(7):267. doi: 10.3390/polym9070267.

DOI:10.3390/polym9070267
PMID:30970945
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6431840/
Abstract

A novel conjugated polymer (PDBDBM) was developed by the polymerization of 1,4-dioctyloxy-2,5-diethynylbenzene with 1,3-bis(4-bromophenyl)propane-1,3-dione based on Pd-catalyzed Sonogashira-coupling reaction. The obtained polymer PDBDBM exhibited bright green photoluminescence under UV irradiation. According to the metal ion titration experiments, PDBDBM showed high sensitivity and selectivity for detection of Cu and Fe over other metal ions. The fluorescent detection limits of PDBDBM were calculated to be 5 nM for Cu and 0.4 μM for Fe and the Stern⁻Volmer quenching constant for Cu and Fe were found to be 1.28 × 10⁸ M and 2.40 × 10⁴ M, respectively. These results indicated that the polymer can be used as a potential probe for Cu and Fe detection.

摘要

基于钯催化的Sonogashira偶联反应，通过1,4 - 二辛氧基 - 2,5 - 二乙炔基苯与1,3 - 双（4 - 溴苯基）丙烷 - 1,3 - 二酮聚合反应，制备了一种新型共轭聚合物（PDBDBM）。所制备的聚合物PDBDBM在紫外光照射下呈现亮绿色光致发光。根据金属离子滴定实验，与其他金属离子相比，PDBDBM对铜和铁的检测具有高灵敏度和选择性。计算得出PDBDBM对铜的荧光检测限为5 nM，对铁的荧光检测限为0.4 μM，并且发现其对铜和铁的Stern-Volmer猝灭常数分别为1.28×10⁸ M和2.40×10⁴ M。这些结果表明该聚合物可作为检测铜和铁的潜在探针。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/f73d7e47e563/polymers-09-00267-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/60a18901a1c6/polymers-09-00267-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/61f0861efdc4/polymers-09-00267-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/6a4ce40db84a/polymers-09-00267-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/f73d7e47e563/polymers-09-00267-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/60a18901a1c6/polymers-09-00267-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/61f0861efdc4/polymers-09-00267-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/6a4ce40db84a/polymers-09-00267-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c40f/6431840/f73d7e47e563/polymers-09-00267-g003.jpg

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