Three-Phase Catassembly of 10 nm Au Nanoparticles for Sensitive and Stable Surface-Enhanced Raman Scattering Detection

doi:10.1021/acs.analchem.3c02703

	Three-Phase Catassembly of 10 nm Au Nanoparticles for Sensitive and Stable Surface-Enhanced Raman Scattering Detection
	Xie, Tao 3,4; Li, Pan 2,4; Wang, Jiazheng 1; Dong, Ronglu 2,4; Yang, Liangbao 2,3,4
刊名	ANALYTICAL CHEMISTRY
	2023-10-06
卷号	95
ISSN号	0003-2700
DOI	10.1021/acs.analchem.3c02703
通讯作者	Li, Pan(lipan2011@iim.ac.cn) ; Yang, Liangbao(lbyang@iim.ac.cn)
英文摘要	Interfacial self-assembly with the advantage of providing large-area, high-density plasmonic hot spots is conducive to achieving high sensitivity and stable surface-enhanced Raman scattering (SERS) sensing. However, rapid and simple assembly of highly repeatable large-scale multilayers with small nanoparticles remains a challenge. Here, we proposed a catassembly approach, where the "catassembly" means the increase in the rate and control of nanoparticle assembly dynamics. The catassembly approach was dropping heated Au sols onto oil chloroform (CHCl3), which triggers a rapid assembly of plasmonic multilayers within 15 s at the oil-water-air (O/W/A) interface. A mixture of heated sol and CHCl3 constructs a continuous liquid-air interfacial tension gradient; thus, the plasmonic multilayer film can form rapidly without adding functional ligands. Also, the dynamic assembly process of the three-phase catassembly ranging from cluster to interfacial film formation was observed through experimental characterization and COMSOL simulation. Importantly, the plasmonic multilayers of 10 nm Au NPs for SERS sensing demonstrated high sensitivity with the 1 nM level for crystal violet molecules and excellent stability with an RSD of about 10.0%, which is comparable to the detection level of 50 nm Au NPs with layer-by-layer assembly, as well as breaking the traditional and intrinsic understanding of small particles of plasmon properties. These plasmonic multilayers of 10 nm Au NPs through the three-phase catassembly method illustrate high SERS sensitivity and stability, paving the way for small-nanoparticle SERS sensing applications.
资助项目	National NaturalScience Foundation of China[2208085MB31] ; Anhui Provincial Natural Science Foundation Project[YZJJQY202201] ; HFIPS Director's Fund
WOS研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:001082643400001
资助机构	National NaturalScience Foundation of China ; Anhui Provincial Natural Science Foundation Project ; HFIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/133357]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Pan; Yang, Liangbao
作者单位	1.Xiamen Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Hefei Canc Hosp, Dept Pharm, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Hlth & Med Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xie, Tao,Li, Pan,Wang, Jiazheng,et al. Three-Phase Catassembly of 10 nm Au Nanoparticles for Sensitive and Stable Surface-Enhanced Raman Scattering Detection[J]. ANALYTICAL CHEMISTRY,2023,95.
APA	Xie, Tao,Li, Pan,Wang, Jiazheng,Dong, Ronglu,&Yang, Liangbao.(2023).Three-Phase Catassembly of 10 nm Au Nanoparticles for Sensitive and Stable Surface-Enhanced Raman Scattering Detection.ANALYTICAL CHEMISTRY,95.
MLA	Xie, Tao,et al."Three-Phase Catassembly of 10 nm Au Nanoparticles for Sensitive and Stable Surface-Enhanced Raman Scattering Detection".ANALYTICAL CHEMISTRY 95(2023).