Controllable-density nanojunctions as SERS substrates for highly sensitive detection

	Controllable-density nanojunctions as SERS substrates for highly sensitive detection
	Zhang, Zhiliang 1,2; Zhu, Weiyue 1
刊名	APPLIED SURFACE SCIENCE
	2015-04-01
卷号	333 期号:1 页码:214-219
关键词	Silver nanoparticles Controllable-density nanojunctions Ink-jet printing technique SERS Highly sensitive detection
英文摘要	A facile and efficient approach was designed to fabricate highly sensitive and reproducible SERS-active substrates based on the controllable-density nanojunctions with ink-jet printing technique. In this system, polyvinylpyrrolidone-capped silver nanoparticles (AgNPs) were ink-jet printed on substrates and subsequently dipped into sodium chloride solution. The capped molecules on the AgNPs surfaces were detached with the competitive absorption of chloride, and spontaneously triggered to form the controllable-density nanojunctions among the AgNPs aggregates. These formed AgNPs nanojunctions demonstrated excellent controllability, reproducibility, and a detection limit of 1 x 10(-11) M level for Rhodamine 6G probe molecules. This strategy could be expected to construct multifarious SERS sensors for highly sensitive detection in chemical and biological fields. (C) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28292]
专题	化学研究所_绿色印刷实验室
作者单位	1.Qilu Univ Technol, Res Ctr Anal & Test, Jinan 250353, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhiliang,Zhu, Weiyue. Controllable-density nanojunctions as SERS substrates for highly sensitive detection[J]. APPLIED SURFACE SCIENCE,2015,333(1):214-219.
APA	Zhang, Zhiliang,&Zhu, Weiyue.(2015).Controllable-density nanojunctions as SERS substrates for highly sensitive detection.APPLIED SURFACE SCIENCE,333(1),214-219.
MLA	Zhang, Zhiliang,et al."Controllable-density nanojunctions as SERS substrates for highly sensitive detection".APPLIED SURFACE SCIENCE 333.1(2015):214-219.