The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection

doi:10.1039/c8en00879e

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院安徽光学精密机械研究所

	The selective capture of Pb2+ in rice phloem sap using glutathione-functionalized gold nanoparticles/multi-walled carbon nanotubes: enhancing anti-interference electrochemical detection
	Jiang, Min 1,2,4; Chen, Hui-Ru 3,4; Li, Shan-Shan 1,2,4; Liang, Rui 3,4; Liu, Jin-Huai 1,2,4; Yang, Yang 3,4; Wu, Yue-Jin 3,4; Yang, Meng 1,2,4; Huang, Xing-Jiu 1,2,4
刊名	ENVIRONMENTAL SCIENCE-NANO
	2018-11-01
卷号	5 期号:11 页码:2761-2771
ISSN号	2051-8153
DOI	10.1039/c8en00879e
通讯作者	Yang, Yang(yangyang19860207@163.com) ; Yang, Meng(myang@iim.ac.cn) ; Huang, Xing-Jiu(xingjiuhuang@iim.ac.cn)
英文摘要	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.
资助项目	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]
WOS关键词	HEAVY-METAL IONS ; COLORIMETRIC DETECTION ; AQUEOUS-SOLUTION ; REMOVAL ; LEAD(II) ; SENSOR ; ELECTRODE ; GRAPHENE ; NANOMATERIALS ; ADSORPTION
WOS研究方向	Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000449705700024
资助机构	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 ; National Natural Science Foundation of China ; 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内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/34223]
专题	合肥物质科学研究院_中科院安徽光学精密机械研究所合肥物质科学研究院_中科院合肥智能机械研究所合肥物质科学研究院_中科院强磁场科学中心合肥物质科学研究院_技术生物与农业工程研究所
通讯作者	Yang, Yang; Yang, Meng; Huang, Xing-Jiu
作者单位	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.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式 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.