Ontology highlight
ABSTRACT:
SUBMITTER: Li W
PROVIDER: S-EPMC6410204 | biostudies-literature | 2019 Feb
REPOSITORIES: biostudies-literature
Li Wei W Ma Chao C Zhang Ling L Chen Bin B Chen Luyang L Zeng Heping H
Nanomaterials (Basel, Switzerland) 20190212 2
We report the tuning of localized surface plasmon resonance (LSPR) of nanoporous gold (NPG) by silica coating, which also affects the surface enhanced Raman scattering (SERS) of NPG. In this study, controllable silica shell is assembled on the NPG surface, and a fully silica thin layer causes more than 50 nm red-shift of LSPR band due to dielectric medium dependence. Additionally, ~1 nm silica coated NPG film shows excellent SERS enhancement, which is due to electromagnetic coupling between liga ...[more]