Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics

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	Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics
	Yang, Y ; Li, ZY ; Yamaguchi, K ; Tanemura, M ; Huang, ZR ; Jiang, DL ; Chen, YH ; Zhou, F ; Nogami, M
刊名	NANOSCALE
	2012
卷号	4 期号:8 页码:2663
关键词	SURFACE-ENHANCED RAMAN ROOM-TEMPERATURE GROWTH NANOROD ARRAYS SPECTROSCOPIC DETECTION SCATTERING ENHANCEMENT ADHESIVE LIFTERS HOT-SPOTS NANOPARTICLES MOLECULES DEPENDENCE
ISSN号	2040-3364
通讯作者	Yang, Y: Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China.
中文摘要	Novel surface-enhanced Raman scattering (SERS) substrates with high SERS-activity are ideal for novel SERS sensors, detectors to detect illicitly sold narcotics and explosives. The key to the wider application of SERS technique is to develop plasmon resonant structure with novel geometries to enhance Raman signals and to control the periodic ordering of these structures over a large area to obtain reproducible Raman enhancement. In this work, a simple Ar+-ion sputtering route has been developed to fabricate silver nanoneedles arrays on silicon substrates for SERS-active substrates to detect trace-level illicitly sold narcotics. These silver nanoneedles possess a very sharp apex with an apex diameter of 15 nm and an apex angle of 20 degrees. The SERS enhancement factor of greater than 10 10 was reproducibly achieved by the well-aligned nanoneedles arrays. Furthermore, ketamine hydrochloride molecules, one kind of illicitly sold narcotics, can be detected down to 27 ppb by using our SERS substrate within 3 s, indicating the sensitivity of our SERS substrates for trace amounts of narcotics and that SERS technology can become an important analytical technique in forensic laboratories because it can provide a rapid and nondestructive method for trace detection.
收录类别	SCI
资助信息	Chinese Academy of Sciences [YZ200939]; National Natural Science Foundation of China [51071167, 10525419, 60736041, 10874238]; Shanghai Project [11495810100]; Shanghai Pujiang Program [10PJ1410700]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35129]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yang, Y,Li, ZY,Yamaguchi, K,et al. Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics[J]. NANOSCALE,2012,4(8):2663.
APA	Yang, Y.,Li, ZY.,Yamaguchi, K.,Tanemura, M.,Huang, ZR.,...&Nogami, M.(2012).Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics.NANOSCALE,4(8),2663.
MLA	Yang, Y,et al."Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics".NANOSCALE 4.8(2012):2663.