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Quantitative SERS sensor based on self-assembled Au@Ag heterogeneous nanocuboids monolayer with high enhancement factor for practical quantitative detection

文献类型：期刊论文

作者Li, Jingya1,7; Wang, Qianqian8; Wang, Juan8; Li, Man6; Zhang, Xiang6; Luan, Longlong5; Li, Pan4; Xu, Weiping2,3
刊名ANALYTICAL AND BIOANALYTICAL CHEMISTRY
出版日期2021-05-14
关键词Surface-enhanced resonance Raman spectroscopy Sensor Quantitative Internal standard Nanocuboids Assembly
ISSN号1618-2642
DOI10.1007/s00216-021-03366-9
通讯作者Li, Pan(lipan2011@iim.ac.cn) ; Xu, Weiping(weipingx@ustc.edu.cn)
英文摘要Accurate and rapid quantitative detection of pesticide and pollutant levels in the actual sample can aid in protecting food security, environmental security, and human health. A high Raman enhancement factor and good repeatability of the surface-enhanced Raman spectroscopy (SERS) substrates are favorable to quantitative analysis. Herein, a quantitative SERS sensor based on constructed self-assembled plasmonic Au@Ag heterogeneous nanocuboids (Au@Ag NCs) monolayer was developed. The sensor was used to quantitatively detect the trace pesticides extracted from pear surfaces and pollutants in fishpond water. Densely packed Au@Ag NCs fabricated into large-scale monolayer films were chemically functionalized using 4-methyl-thiobenzoic acid (4-MBA) at the organic/aqueous interface, in which plentiful nanogaps contribute to increase hotspots. Their sharp corners and edges make the sensor have high SERS performance through providing abundant "hot spots." The obtained optically SERS-based sensor with uniform liquid-state interfacial nanoparticle arrays appeared to have nice SERS performance and uniformity using crystal violet (CV) as a probe molecule. In particular, the proposed SERS sensor was applied for quantitative detection of thiabendazole (TBZ) extracted from pear surfaces and malachite green (MG) in fishpond water down to levels of 0.0105 nM and 0.87 nM for SERS assay respectively. As a result, our proposed SERS quantitative detection strategy is quite preferred to on-site analysis and supervision of contaminant in food samples.
WOS关键词RAMAN-SCATTERING ACTIVITY ; MALACHITE GREEN ; SENSITIVE DETECTION ; PESTICIDE-RESIDUES ; SURFACE ; SPECTROSCOPY ; THIABENDAZOLE ; NANOPARTICLES ; SUBSTRATE ; PRODUCTS
资助项目National Natural Science Foundation of China[52072360] ; Natural Science Foundation of Anhui Province (China)[1804h08020252]
WOS研究方向Biochemistry & Molecular Biology ; Chemistry
语种英语
WOS记录号WOS:000650062100001
出版者SPRINGER HEIDELBERG
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province (China)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/122406]  
专题中国科学院合肥物质科学研究院
通讯作者Li, Pan; Xu, Weiping
作者单位1.Univ Sci & Technol China, Dept Biol Phys, Hefei 230026, Anhui, Peoples R China
2.Anhui Prov Key Lab Tumor Immunotherapy & Nutr The, Hefei 230001, Anhui, Peoples R China
3.Univ Sci & Technol China, Div Life Sci & Med, Affiliated Hosp USTC 1, Hefei 230001, Anhui, Peoples R China
4.Chinese Acad Sci, Hefei Inst Phys Sci, Ctr Med Phys & Technol, Hefei 230021, Anhui, Peoples R China
5.Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Anhui, Peoples R China
6.Univ Sci & Technol China, Dept Bioengn, Affiliated Hosp USTC 1, Div Life Sci & Med, Hefei 230001, Anhui, Peoples R China
7.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China
8.Anhui Univ Chinese Med, Dept Pharm, Hefei 230038, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jingya,Wang, Qianqian,Wang, Juan,et al. Quantitative SERS sensor based on self-assembled Au@Ag heterogeneous nanocuboids monolayer with high enhancement factor for practical quantitative detection[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2021.
APA Li, Jingya.,Wang, Qianqian.,Wang, Juan.,Li, Man.,Zhang, Xiang.,...&Xu, Weiping.(2021).Quantitative SERS sensor based on self-assembled Au@Ag heterogeneous nanocuboids monolayer with high enhancement factor for practical quantitative detection.ANALYTICAL AND BIOANALYTICAL CHEMISTRY.
MLA Li, Jingya,et al."Quantitative SERS sensor based on self-assembled Au@Ag heterogeneous nanocuboids monolayer with high enhancement factor for practical quantitative detection".ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2021).

入库方式： OAI收割

来源：合肥物质科学研究院

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