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SERS-based ultrasensitive detection of organophosphorus nerve agents via substrate's surface modification

文献类型：期刊论文

作者Zhao, Qian1; Liu, Guangqiang1; Zhang, Hongwen1; Zhou, Fei1; Li, Yue1; Cai, Weiping1,2
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2017-02-15
卷号324期号:无页码:194-202
关键词Sers-based Detection Metal-weakly Interacted Molecules Nerve Agents Surface Modification Amidation Reaction
DOI10.1016/j.jhazmat.2016.10.049
文献子类Article
英文摘要Highly efficient detection of the organicphosphor nerve agents such as sarin and sornan, based on surface enhanced Raman scattering (SERS) effect, has been in challenge due to their weak adsorption property on coin metals. In this paper, a new strategy is presented to achieve the SERS-based ultrasensitive detection of sarin-simulated agent methanephosphonic acid (MPA) via the surface modification of SERS-substrates. The Au-coated Si nanocone array is surface-modified with 2-aminoethanethiol and used as SERS-substrate for detection of MPA. It has been shown that the modified substrate could preferentially capture MPA molecules in the solution with coupling agent and induce amidation reaction. The reaction products are still bound or anchor on the substrate's surface. The MPA molecules can thus be detected by Raman spectral measurement of the solution-soaked SERS-substrate. The minimum detection level is down to similar to 1 ppb. The Raman peak intensity versus the MPA concentration is subject to a linear double logarithmic relation from similar to 1 ppb to similar to 1000 ppm, which is attributed to Freundlich adsorption of MPA on the surface-modified SERS substrate. This study provides a new way for the highly efficient SERS-based detection of the organophosphorus nerve agents and some other target molecules weakly interacted with metal substrates. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词ENHANCED-RAMAN-SPECTROSCOPY ; SOFT ACIDS ; NANOPARTICLES ; SIMULANT ; MODEL ; HARD ; HSAB
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000390182600009
资助机构Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11574313 ; 11574313 ; 11574313 ; 1137430051571188) ; 1137430051571188) ; 1137430051571188) ; 1137430051571188) ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of China(51531006 ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; Natural Science Foundation of Anhui Province(1508085MA16) ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; CAS/SAF International Partnership Program for Creative Research Teams ; 11574313 ; 11574313 ; 11574313 ; 11574313 ; 1137430051571188) ; 1137430051571188) ; 1137430051571188) ; 1137430051571188)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/30279]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Qian,Liu, Guangqiang,Zhang, Hongwen,et al. SERS-based ultrasensitive detection of organophosphorus nerve agents via substrate's surface modification[J]. JOURNAL OF HAZARDOUS MATERIALS,2017,324(无):194-202.
APA Zhao, Qian,Liu, Guangqiang,Zhang, Hongwen,Zhou, Fei,Li, Yue,&Cai, Weiping.(2017).SERS-based ultrasensitive detection of organophosphorus nerve agents via substrate's surface modification.JOURNAL OF HAZARDOUS MATERIALS,324(无),194-202.
MLA Zhao, Qian,et al."SERS-based ultrasensitive detection of organophosphorus nerve agents via substrate's surface modification".JOURNAL OF HAZARDOUS MATERIALS 324.无(2017):194-202.

入库方式： OAI收割

来源：合肥物质科学研究院

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