Water-soluble non-conjugated polymer dots with strong green fluorescence for sensitive detection of organophosphate pesticides
文献类型：期刊论文
| 作者 | Zhang, Chunxian4,5; Li, Shuai3; Duan, Zhiqiang1; Li, Qin4; Zhao, Mengxuan4; Chen, Yulong4; Zhai, Xiurong4,5; Mao, Guojiang2; Wang, Hua3 |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2022-05-08 |
| 卷号 | 1206页码:9 |
| ISSN号 | 0003-2670 |
| 关键词 | Water-soluble polymer dots MnO2 nanosheets Fluorimetric detection Catalysis inhibition Organophosphate pesticides |
| DOI | 10.1016/j.aca.2022.339792 |
| 通讯作者 | Duan, Zhiqiang(duan198402@126.com) ; Wang, Hua(Wanghua@zjhu.edu.cn) |
| 英文摘要 | Water-soluble non-conjugated polymer dots (PDs) have been synthesized using hyperbranched polyethyleneimine (PEI) and dihydroxybenzaldehyde (DHB) for the first time via the Schiff base reaction at room temperature. The yielded non-conjugated PDs of PEI-DHB could display the well-defined spheric structure and good water solubility. In contrast to the common PDs otherwise showing blue emission, the PEI-DHB PDs could give out strong green fluorescence in aqueous media. Especially, the fluorescence of the PEI-DHB PDs could be specifically quenched by MnO2 nanosheets through the inner filter effects and further restored by the thiocholine that could reduce MnO2 nanosheets into Mn2+ . Herein, thiocholine could be produced in hydrolysis reaction of acetylthiocholine catalyzed by the acetylcholinesterase (AChE), of which the catalytic activity could be irreversibly inhibitted by the introduction of organophosphates. A highly selective fluorimetric method was thereby been developed for the detection of organophosphorus pesticides using dimethyl-dichloro-vinyl phosphate as a model. The linear concentrations ranges from 0.050 to 2.5 mM. Importantly, the non-conjugated PDs probes with strong green fluorescence and high water solubility may promise the extensive applications in the environmental, food, and clinical analysis fields. (C) 2022 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China, P. R. China[22074079] ; opening foundation from School of Chemistry and Chemical Engineering, Henan Normal University, P.R. China |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000793070200013 |
| 源URL | [http://119.78.100.183/handle/2S10ELR8/301098]  |
| 专题 | 新药研究国家重点实验室 |
| 通讯作者 | Duan, Zhiqiang; Wang, Hua |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R China 2.Henan Normal Univ, Sch Chem & Chem Engn, Henan Key Lab Organ Funct Mol & Drug Innovat, Xinxiang 453007, Henan, Peoples R China 3.Huzhou Univ, Sch Life Sci, Huzhou Key Lab Med & Environm Applicat Technol, Huzhou City 313000, Zhejiang, Peoples R China 4.Jining Univ, Coll Chem Chem Engn & Mat, Qufu 273155, Shandong, Peoples R China 5.Qufu Normal Univ, Coll Phys & Engn, Qufu 273165, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chunxian,Li, Shuai,Duan, Zhiqiang,et al. Water-soluble non-conjugated polymer dots with strong green fluorescence for sensitive detection of organophosphate pesticides[J]. ANALYTICA CHIMICA ACTA,2022,1206:9. |
| APA | Zhang, Chunxian.,Li, Shuai.,Duan, Zhiqiang.,Li, Qin.,Zhao, Mengxuan.,...&Wang, Hua.(2022).Water-soluble non-conjugated polymer dots with strong green fluorescence for sensitive detection of organophosphate pesticides.ANALYTICA CHIMICA ACTA,1206,9. |
| MLA | Zhang, Chunxian,et al."Water-soluble non-conjugated polymer dots with strong green fluorescence for sensitive detection of organophosphate pesticides".ANALYTICA CHIMICA ACTA 1206(2022):9. |
入库方式： OAI收割
来源：上海药物研究所
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