title: Metastable state nanoparticle-enhanced Raman spectroscopy for highly sensitive detection.
abstract: Metastable state silver nanoparticle surface-enhanced Raman scattering has been experimentally and theoretically demonstrated; the signal is two to three orders of magnitude higher than that for the traditional method. Ultrasensitive surface-enhanced Raman scattering signals of illicit drug cocaine and organophosphate pesticide methyl-parathion were observed.
authors.affiliation: Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China. lbyang@iim.ac.cn
authors.forename: Liangbao
authors.initials: L
authors.lastname: Yang
authors.forename: Honglin
authors.initials: H
authors.lastname: Liu
authors.forename: Jin
authors.initials: J
authors.lastname: Wang
authors.forename: Fei
authors.initials: F
authors.lastname: Zhou
authors.forename: Zhongqun
authors.initials: Z
authors.lastname: Tian
authors.forename: Jinhuai
authors.initials: J
authors.lastname: Liu