Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH2-UiO-66 metal-organic framework | |
Wang, Shasha3; Wang, Yifei3; Ma, Jiping3; Huang, Chaonan3; Chen, Lingxin1,2,4 | |
刊名 | ANALYTICAL AND BIOANALYTICAL CHEMISTRY |
2023-12-15 | |
页码 | 10 |
关键词 | Gold nanoparticles Metal-organic framework Mercury ions RGB analysis Smartphone-assisted detection |
ISSN号 | 1618-2642 |
DOI | 10.1007/s00216-023-05090-y |
通讯作者 | Ma, Jiping(majiping@qut.edu.cn) ; Chen, Lingxin(lxchen@yic.ac.cn) |
英文摘要 | A novel portable smartphone-assisted colorimetric method was reported for the determination of Hg2+ with good analytical performance. A Zr(IV)-based metal-organic framework functionalized with amino groups (NH2-UiO-66) has been adopted as a supporting platform to anchor gold nanoparticles (AuNPs), avoiding the migration and aggregation of AuNPs. With the addition of Hg2+, the formation of gold amalgam proved possible to enhance peroxidase-like activity of the composite (AuNPs/NH2-UiO-66), accelerating the oxidization of zymolyte 3,3 ',5,5 '-tetramethylbenzidine (TMB). In the meantime, the color of the reaction solution turned a vivid blue, and the red, green, and blue (RGB) values of the solution color changed accordingly. On account of this strategy, the quantitative detection of Hg2+ could be achieved. After the optimization of the experiment conditions, the average color intensity (I-c) resulting from RGB values was linear related to the concentration of Hg2+ from 10 to 100 nM, accompanied with a detection limit (LOD) down to 5.4 nM calculated by 3 sigma/S. The successful application of the designed method has been promoted to detect Hg2+ in some water samples, displaying a great potential in practical application. Furthermore, the use of a smartphone made our proposed method simple and accurate, and thus puts forward a possible way for in situ and real-time monitoring. |
WOS关键词 | COLORIMETRIC DETECTION ; AQUEOUS-SOLUTION ; SPECIATION ; UIO-66-NH2 ; EXTRACTION ; SAMPLES ; HG(II) ; SENSOR ; WATER ; HG2+ |
WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
语种 | 英语 |
WOS记录号 | WOS:001125113600001 |
资助机构 | National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.yic.ac.cn/handle/133337/33147] |
专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
通讯作者 | Ma, Jiping; Chen, Lingxin |
作者单位 | 1.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol,Shandong K, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 3.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266520, Peoples R China 4.Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Shasha,Wang, Yifei,Ma, Jiping,et al. Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH2-UiO-66 metal-organic framework[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2023:10. |
APA | Wang, Shasha,Wang, Yifei,Ma, Jiping,Huang, Chaonan,&Chen, Lingxin.(2023).Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH2-UiO-66 metal-organic framework.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,10. |
MLA | Wang, Shasha,et al."Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH2-UiO-66 metal-organic framework".ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2023):10. |
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