AG Nanoparticles Coupled with AG Nanostructures as Efficient SERS Platform for Detection of 2, 4-Dinitrotoluene

Ag nanoparticles (NPs) and nanostructures (NSs) were fabricated in single step using femtosecond laser ablation in liquids technique. A significant increment of one order in the SERS intensity was achieved by depositing the Ag NPs in the gaps of Ag NSs compared to that obtained with individual Ag NPs/NS.