Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH2-UiO-66 metal-organic framework
Wang, Shasha1; Wang, Yifei1; Ma, Jiping1; Huang, Chaonan1; Chen, Lingxin2,3,4
Source PublicationANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN1618-2642
2023-12-15
Pages10
KeywordGold nanoparticles Metal-organic framework Mercury ions RGB analysis Smartphone-assisted detection
DOI10.1007/s00216-023-05090-y
Corresponding AuthorMa, Jiping(majiping@qut.edu.cn) ; Chen, Lingxin(lxchen@yic.ac.cn)
AbstractA 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.
Funding OrganizationNational Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation
Indexed BySCI
Language英语
WOS KeywordCOLORIMETRIC DETECTION ; AQUEOUS-SOLUTION ; SPECIATION ; UIO-66-NH2 ; EXTRACTION ; SAMPLES ; HG(II) ; SENSOR ; WATER ; HG2+
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS IDWOS:001125113600001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/33148
Collection中国科学院海岸带环境过程与生态修复重点实验室
中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
Corresponding AuthorMa, Jiping; Chen, Lingxin
Affiliation1.Qingdao Univ Technol, Sch Environm & Municipal Engn, Qingdao 266520, 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.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
4.Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China
Recommended Citation
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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