Institutional Repository of Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection | |
Jiang, Min1,2,3; Chen, Hui-Ru3,4; Li, Shan-Shan1,2,3 ; Liang, Rui3,4; Liu, Jin-Huai1,2,3; Yang, Yang3,4; Wu, Yue-Jin3,4; Yang, Meng1,2,3; Huang, Xing-Jiu1,2,3
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| 2018-11-01 | |
| Source Publication | ENVIRONMENTAL SCIENCE-NANO
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| ISSN | 2051-8153 |
| Corresponding Author | Yang, Yang(yangyang19860207@163.com) ; Yang, Meng(myang@iim.ac.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn) |
| Abstract | The monitoring of heavy metal ions (HMIs) in rice phloem sap is of great significance for studying the migration and accumulation of HMIs in rice plants and, ultimately, for human health. However, achieving sensitive and selective electroanalysis of HMIs in such complex real samples is a huge challenge due to severe interference. In this work, a sensitive anti-interference sensing interface for the analysis of Pb2+ in rice phloem sap is fabricated based on glutathione-functionalized gold/multi-walled carbon nanotubes (MWCNTs-GSH-Au-GSH). Combining the selective capturing abilities of glutathione and the electrocatalytic abilities of small sized gold nanoparticles (mean diameter: 3.1 nm) toward Pb2+, the sensitivity of MWCNTs-GSH-Au-GSH is as high as 1122.8 A M-1 cm(-2) without interference from other small ions, sucrose, ATP, amino acids, plant hormones, and so on. The limit of detection (0.01 M) satisfactorily meets the requirements for sensing trace Pb2+. Importantly, a MWCNTs-GSH-Au-GSH electrode exhibited excellent stability over a test period of 6 months. In addition, the developed sensor shows high reproducibility, which is checked using ten different MWCNTs-GSH-Au-GSH electrodes. Based on the above advantages, the MWCNTs-GSH-Au-GSH electrode can be suitably applied to the detection of Pb2+ in rice phloem sap. The mechanism behind the high selectivity and sensitivity of the MWCNTs-GSH-Au-GSH electrode toward Pb2+ is clearly investigated via X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS) studies. |
| DOI | 10.1039/c8en00879e |
| WOS Keyword | HEAVY-METAL IONS ; COLORIMETRIC DETECTION ; AQUEOUS-SOLUTION ; REMOVAL ; LEAD(II) ; SENSOR ; ELECTRODE ; GRAPHENE ; NANOMATERIALS ; ADSORPTION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Hefei Institutes of Physical Science Director's Fund[YZJJ201701] ; CAS Interdisciplinary Innovation Team ; Major Science and Technology Special Project in Anhui[17030801033] ; youth project of the National Natural Science Fund of China[11405256] ; postdoctoral innovation talents supporting project[BX20180311] ; National Natural Science Foundation of China[U1532120] ; National Natural Science Foundation of China[U1532123] ; National Natural Science Foundation of China[21475133] ; National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[21735005] ; National Natural Science Foundation of China[21475133] ; National Natural Science Foundation of China[U1532123] ; National Natural Science Foundation of China[U1532120] ; postdoctoral innovation talents supporting project[BX20180311] ; youth project of the National Natural Science Fund of China[11405256] ; Major Science and Technology Special Project in Anhui[17030801033] ; CAS Interdisciplinary Innovation Team ; Hefei Institutes of Physical Science Director's Fund[YZJJ201701] |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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| WOS Research Area | Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics |
| WOS Subject | Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology |
| WOS ID | WOS:000449705700024 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.hfcas.ac.cn:8080/handle/334002/34223 |
| Collection | 中科院安徽光学精密机械研究所 中科院合肥智能机械研究所 中科院强磁场科学中心 技术生物与农业工程研究所 |
| Corresponding Author | Yang, Yang; Yang, Meng; Huang, Xing-Jiu |
| Affiliation | 1.Chinese Acad Sci, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China |
| First Author Affilication | Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China |
| Corresponding Author Affilication | Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, Min,Chen, Hui-Ru,Li, Shan-Shan,et al. The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection[J]. ENVIRONMENTAL SCIENCE-NANO,2018,5(11):2761-2771. |
| APA | Jiang, Min.,Chen, Hui-Ru.,Li, Shan-Shan.,Liang, Rui.,Liu, Jin-Huai.,...&Huang, Xing-Jiu.(2018).The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection.ENVIRONMENTAL SCIENCE-NANO,5(11),2761-2771. |
| MLA | Jiang, Min,et al."The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection".ENVIRONMENTAL SCIENCE-NANO 5.11(2018):2761-2771. |
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