Self-Healing Plasmonic Metal Liquid as a Quantitative Surface Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems

doi:10.1021/acs.analchem.8b04893

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Self-Healing Plasmonic Metal Liquid as a Quantitative Surface Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems
	Su, MK ; Li, XY ; Zhang, SB ; Yu, FF ; Tian, L ; Jiang, YF ; Liu, HL
刊名	ANALYTICAL CHEMISTRY
	2019
卷号	91 期号:3 页码:2288—2295
关键词	CORE-SHELL NANOPARTICLES GOLD NANOPARTICLES SERS DETECTION ARRAYS COLLOIDOSOMES SPECTROSCOPY MARBLES MIRRORS UNIFORM TOXIN
ISSN号	0003-2700
DOI	10.1021/acs.analchem.8b04893
文献子类	期刊论文
英文摘要	Liquid-state interfacial plasmonic systems are emerging as an alternative for the quantitation and practicability of the surface-enhanced Raman scattering (SERS) technique in analytical science, especially for complex liquid-phase systems. Here we show a general strategy for the three-dimensional (3D) self-assembly of gold nanoparticle (GNP) arrays on a spherical oil-water (O-W) interface, denoted as a plasmonic metal liquid (PML). The PML has excellent self-healing and shape-adaptive features; it can be transferred into containers of any shape; and it presents fast, quantitative, and multiplex SERS capability. Accurate control of nanoparticle density (PD) on the 3D interface enables tunable SERS strength. In situ synchrotron radiation small angle X-ray scattering (SR-SAXS) provides evidence that the interfacial PD is quantifiable and can be precisely regulated in the range of 24-216 particles/mu m(2), which produces optimizable Raman enhancement. The strongest SERS signal is achieved at 167 particles/mu m(2) with GNP diameters of approximately 64 nm. In particular, the O phase acts not only as the assembly media for spherical PML arrays but also as the extracting agent for targets with different natures in complex media. Moreover, the O phase with continuous-phase features generates inherent and sharp SERS fingerprints and provides an effective internal standard (IS) for calibrating the fluctuation of samples and measuring conditions. By virtue of the triple roles of the O phase, the PML platform exhibits excellent mechanical stability, detection sensitivity, and signal reproducibility. This study demonstrates the concept of a fast and quantitative liquid-state SERS platform in common cuvettes on a portable Raman device that is as simple as a spectrophotometer.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31810]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Hefei Univ Technol, Minist Educ, Engn Res Ctr Bioproc, Coll Food & Biol Engn, Hefei 230009, Anhui, Peoples R China; 2.Hunan Univ, Coll Life Sci, State Key Lab Chemo Biosensing & Chemometr, Coll Chem & Chem Engn,Mol Sci & Biomed Lab, Changsha 410082, Hunan, Peoples R China; 3.Hunan Univ, Aptamer Engn Ctr Hunan Prov, Changsha 410082, Hunan, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Su, MK,Li, XY,Zhang, SB,et al. Self-Healing Plasmonic Metal Liquid as a Quantitative Surface Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems[J]. ANALYTICAL CHEMISTRY,2019,91(3):2288—2295.
APA	Su, MK.,Li, XY.,Zhang, SB.,Yu, FF.,Tian, L.,...&Liu, HL.(2019).Self-Healing Plasmonic Metal Liquid as a Quantitative Surface Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems.ANALYTICAL CHEMISTRY,91(3),2288—2295.
MLA	Su, MK,et al."Self-Healing Plasmonic Metal Liquid as a Quantitative Surface Enhanced Raman Scattering Analyzer in Two-Liquid-Phase Systems".ANALYTICAL CHEMISTRY 91.3(2019):2288—2295.