Fig. 5
From: Nanomaterial enabled sensors for environmental contaminants
(Reprinted with permission from Liu et al. [50]. Copyright 2014 American Chemical Society)
Schematic of SERS-active system for HgII ion detection. Schematic illustration of the SERS-active system for HgII ion detection based on T–Hg–T bridges using DNA-Au NPs and DNA-MSS@Au NPs