Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions
文献类型：期刊论文
| 作者 | Miao, Qinglan2; Qi, Ji1; Li, Yuanyuan2; Fan, Xinxia2; Deng, Dongmei2; Yan, Xiaoxia2; He, Haibo2; Luo, Liqiang2 |
| 刊名 | ANALYST
 |
| 出版日期 | 2021-10-11 |
| 卷号 | 146期号:20页码:6297-6305 |
| ISSN号 | 0003-2654 |
| DOI | 10.1039/d1an01268a |
| 通讯作者 | Deng, Dongmei(dmdeng@shu.edu.cn) ; Luo, Liqiang(luck@shu.edu.cn) |
| 英文摘要 | In this work, zinc-doped carbon dots (Zn-CDs) were anchored on a three-dimensional wheel type paper-based microfluidic chip, and were decorated with 6-mercaptonicotinic acid (MNA) and l-cysteine (l-Cys) for highly sensitive and rapid fluorescence detection of Cu2+. Zn-CDs were first anchored on paper through the amide bonds between the carboxyl groups of the Zn-CDs and the amino groups of the paper. Afterwards, Zn-CDs were decorated with MNA and l-Cys, effectively preventing the Zn-CDs from aggregation. The nitrogen atom on the pyridine ring and the carboxylic acid groups in MNA and l-Cys coordinated with Cu2+ to form a nonfluorescent ground-state complex, causing the fluorescence quenching of the Zn-CDs. The three-dimensional rotary design could simplify the operation process and achieve simultaneous analysis of multiple samples with different concentrations. Under optimal conditions, the fluorescent sensor exhibits linear response for the determination of Cu2+ in the range from 0.1 to 60 mu g L-1 with the detection limit (LOD) of 0.018 mu g L-1. The proposed strategy provides a novel way for the highly sensitive detection of Cu2+ in a complex water environment. |
| WOS关键词 | QUANTUM DOTS ; SELECTIVE DETECTION ; COLORIMETRIC DETECTION ; CU2+ IONS ; SENSOR ; HG2+ ; NANOPARTICLES ; CYSTEINE ; PROBE |
| 资助项目 | National Natural Science Foundation of China[21974085] ; National Natural Science Foundation of China[61971274] ; National Natural Science Foundation of China[62171268] ; National Natural Science Foundation of China[22106179] ; China Postdoctoral Science Foundation[2021M693208] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000697787500001 |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.yic.ac.cn/handle/133337/29797]  |
| 专题 | 烟台海岸带研究所_山东省海岸带环境工程技术研究中心 |
| 通讯作者 | Deng, Dongmei; Luo, Liqiang |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Coastal Environm Engn & Technol, Yantai Inst Coastal Zone Res,Shandong Prov Key La, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Shanghai Univ, Coll Sci, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Miao, Qinglan,Qi, Ji,Li, Yuanyuan,et al. Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions[J]. ANALYST,2021,146(20):6297-6305. |
| APA | Miao, Qinglan.,Qi, Ji.,Li, Yuanyuan.,Fan, Xinxia.,Deng, Dongmei.,...&Luo, Liqiang.(2021).Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions.ANALYST,146(20),6297-6305. |
| MLA | Miao, Qinglan,et al."Anchoring zinc-doped carbon dots on a paper-based chip for highly sensitive fluorescence detection of copper ions".ANALYST 146.20(2021):6297-6305. |
入库方式： OAI收割
来源：烟台海岸带研究所
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