Xianping Wang

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Jiangxi Normal University

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Surface-Enhanced Raman Spectroscopy for Trace-Level Dimethoate Detection Based on a Silver Nanoparticle–Probe–Smooth Gold Film Substrate

Xianping Wang;Zhijing Wu;Yunheng Wang;Jian Wu
January 1st 2016

In this paper, we demonstrate a sensitive surface-enhanced Raman spectroscopy (SERS) substrate for trace dimethoate detection. The substrate is composed of Ag nanoparticle/probe/smooth Au film stack configuration. The nanogap formed by an Ag nanoparticle and a macroscopically flat Au film is one kind of “hot site” which will dramatically increase the total “hot spots” number.

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