Conjugated Polymers Based on Carbazole and Tridentate Ligands as the "On-Off-On" Fluorescent Probes for Detection of Ni (II) Ion and Lysine.

IF 2.6 4区 化学 Q2 BIOCHEMICAL RESEARCH METHODS Journal of Fluorescence Pub Date : 2024-10-26 DOI:10.1007/s10895-024-03997-y
Yinshuang Chen, Yi Feng, Haoyue Luo, Xinai Chen, Hong Lei, Juhua Feng, Kuan Liu
{"title":"Conjugated Polymers Based on Carbazole and Tridentate Ligands as the \"On-Off-On\" Fluorescent Probes for Detection of Ni (II) Ion and Lysine.","authors":"Yinshuang Chen, Yi Feng, Haoyue Luo, Xinai Chen, Hong Lei, Juhua Feng, Kuan Liu","doi":"10.1007/s10895-024-03997-y","DOIUrl":null,"url":null,"abstract":"<p><p>Two novel conjugated polymers (polymer 1 and polymer 2) containing trisheterocyclic systems and carbazole as the copolymerization unit were synthesized by the Suzuki coupling reaction and characterized using NMR spectroscopy and other methods. 4'-(3,5-Dibromophenyl)-2,2':6',2''-terpyridine and 2,2'-(4-(3,5-dibromophenyl)pyridine-2,6-diyl)dithiazole were used as the recognizing units of the two polymers respectively. The polymers show blue-violet fluorescence when dissolved in THF. The ability of the polymers to identify anions and metal ions was investigated by fluorescence sensing tests. It was found that I<sup>-</sup> not only quenched the fluorescence but also undergone some redshift. Ni (II) efficiently quenched the fluorescence of the polymers, and polymer 2 recognized Ni<sup>2+</sup> with higher specificity. UV-visible absorption titration experiments showed that Ni<sup>2+</sup> formed complexes with the polymers. In addition, the formation of complexes between Ni<sup>2+</sup> and polymers were used for the detection of amino acids, and it was found that lysine could regenerate the fluorescence of [polymer 1-Ni<sup>2+</sup>] and [polymer 2-Ni<sup>2+</sup>] with 99% fluorescence recovery.</p>","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fluorescence","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10895-024-03997-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
引用次数: 0

Abstract

Two novel conjugated polymers (polymer 1 and polymer 2) containing trisheterocyclic systems and carbazole as the copolymerization unit were synthesized by the Suzuki coupling reaction and characterized using NMR spectroscopy and other methods. 4'-(3,5-Dibromophenyl)-2,2':6',2''-terpyridine and 2,2'-(4-(3,5-dibromophenyl)pyridine-2,6-diyl)dithiazole were used as the recognizing units of the two polymers respectively. The polymers show blue-violet fluorescence when dissolved in THF. The ability of the polymers to identify anions and metal ions was investigated by fluorescence sensing tests. It was found that I- not only quenched the fluorescence but also undergone some redshift. Ni (II) efficiently quenched the fluorescence of the polymers, and polymer 2 recognized Ni2+ with higher specificity. UV-visible absorption titration experiments showed that Ni2+ formed complexes with the polymers. In addition, the formation of complexes between Ni2+ and polymers were used for the detection of amino acids, and it was found that lysine could regenerate the fluorescence of [polymer 1-Ni2+] and [polymer 2-Ni2+] with 99% fluorescence recovery.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
基于咔唑和三叉配体的共轭聚合物作为检测镍 (II) 离子和赖氨酸的 "开-关-开 "荧光探针。
通过铃木偶联反应合成了两种新型共轭聚合物(聚合物 1 和聚合物 2),其中含有三三环系统和咔唑作为共聚单元,并利用核磁共振光谱和其他方法对其进行了表征。4'-(3,5- 二溴苯基)-2,2':6',2''-三联吡啶和 2,2'-(4-(3,5-二溴苯基)吡啶-2,6-二基)二噻唑分别用作两种聚合物的识别单元。聚合物溶于 THF 时会发出蓝紫色荧光。通过荧光感应试验研究了聚合物识别阴离子和金属离子的能力。结果发现,I- 不仅会淬灭荧光,还会发生一些红移。Ni (II) 能有效地淬灭聚合物的荧光,聚合物 2 对 Ni2+ 的识别具有更高的特异性。紫外可见吸收滴定实验表明,Ni2+ 与聚合物形成了络合物。此外,还将 Ni2+ 与聚合物形成的络合物用于检测氨基酸,结果发现赖氨酸可以使[聚合物 1-Ni2+]和[聚合物 2-Ni2+]的荧光再生,荧光恢复率达 99%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Fluorescence
Journal of Fluorescence 化学-分析化学
CiteScore
4.60
自引率
7.40%
发文量
203
审稿时长
5.4 months
期刊介绍: Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.
期刊最新文献
Calcium Sulfide Based Nanophosphors-A Review on Synthesis Techniques, Characterization and Applications. A Portable Zn2+ Fluorescence Sensor for Information Storage and Bio-Imaging in Living Cells. Enhanced UV-Visible Absorption of Silicon Solar Cells Utilizing YAG:Ce3+ and Ba5Si2O6Cl6: Eu2+ Based on Spectral Down-Shifting. Exploring the Interplay of Wavelength, Quantum Yield, and Penetration Depth in In Vivo Fluorescence Imaging. An Efficient Fluorescent Chemosensing Probe for Total Determination and Speciation of Ultra-Trace Levels of Mercury (II) Species in Water.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1