A simple, cost-effective argon ion sputtering method to make silver nanoneedles for surface enhanced raman scattering (SERS) sensors to detect narcotics and explosives has been developed by scientists in China.
The team used the method to detect ketamine to 27ppb within three seconds.
Read the ‘HOT’ Nanoscale article:
Controlled Fabrication of Silver Nanoneedles Array for SERS and Their Application in Rapid Detection of Narcotics
Yong Yang, Zhiyuan Li, Kohei Yamaguchi, Masaki Tanemura, Zhengren Huang, Dongliang Jiang, Yuhui Chen, Fei Zhou and M Nogami
Nanoscale, 2012, DOI: 10.1039/C2NR12110G
