Abstract
We present a simple and effective nanofabrication procedure to produce large-scale 3D nanoporous Ag-based SERS substrates which exhibit excellent spatial reproducibility and EF of about 108. Our substrates can detect polycyclic aromatic hydrocarbons dispersed in water without any functionalization of the surface, reaching a LOD of ~ 20 nM.
© 2022 The Author(s)
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