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

doi:10.1007/s00216-021-03366-9

HFCAS OpenIR

	Quantitative SERS sensor based on self-assembled Au@Ag heterogeneous nanocuboids monolayer with high enhancement factor for practical quantitative detection
	Li, Jingya 1,2; Wang, Qianqian 3; Wang, Juan 3; Li, Man 4; Zhang, Xiang 4; Luan, Longlong 5; Li, Pan 6; Xu, Weiping 7,8
	2021-05-14
发表期刊	ANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN	1618-2642
通讯作者	Li, Pan(lipan2011@iim.ac.cn) ; Xu, Weiping(weipingx@ustc.edu.cn)
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.
关键词	Surface-enhanced resonance Raman spectroscopy Sensor Quantitative Internal standard Nanocuboids Assembly
DOI	10.1007/s00216-021-03366-9
关键词[WOS]	RAMAN-SCATTERING ACTIVITY ; MALACHITE GREEN ; SENSITIVE DETECTION ; PESTICIDE-RESIDUES ; SURFACE ; SPECTROSCOPY ; THIABENDAZOLE ; NANOPARTICLES ; SUBSTRATE ; PRODUCTS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52072360] ; Natural Science Foundation of Anhui Province (China)[1804h08020252]
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province (China)
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemical Research Methods ; Chemistry, Analytical
WOS记录号	WOS:000650062100001
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122407
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.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Biol Phys, Hefei 230026, Anhui, Peoples R China 3.Anhui Univ Chinese Med, Dept Pharm, Hefei 230038, Anhui, Peoples R China 4.Univ Sci & Technol China, Dept Bioengn, Affiliated Hosp USTC 1, Div Life Sci & Med, Hefei 230001, Anhui, Peoples R China 5.Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Anhui, Peoples R China 6.Chinese Acad Sci, Hefei Inst Phys Sci, Ctr Med Phys & Technol, Hefei 230021, Anhui, Peoples R China 7.Univ Sci & Technol China, Div Life Sci & Med, Affiliated Hosp USTC 1, Hefei 230001, Anhui, Peoples R China 8.Anhui Prov Key Lab Tumor Immunotherapy & Nutr The, Hefei 230001, Anhui, Peoples R China
第一作者单位	中科院合肥智能机械研究所
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).