Open AccessPreparation of a superhydrophobic AgNP/GF substrate and its SERS application in a complex detection environment
Author(s) -
Chundong Liu,
Fengcai Lei,
Yisheng Wei,
Zhen Li,
Chao Zhang,
Qianqian Peng,
Baoyuan Man,
Jing Yu
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.441606
Subject(s) - raman scattering , materials science , raman spectroscopy , substrate (aquarium) , nanotechnology , nanoparticle , surface enhanced raman spectroscopy , optics , oceanography , physics , geology
Surface-enhanced Raman scattering (SERS) is widely considered to be a fingerprint spectrum that can realize molecular identification, and it continues to receive a lot of attention due to its high sensitivity and powerful qualitative analysis capabilities. In recent years, there has been a lot of work and reports on super-sensitive SERS substrates, but often the enhanced ability of the substrate is also effective for impurities and irrelevant molecules. Therefore, a problem that still remains to be solved is how to perform effective trace detection of specific substances in a complex detection environment. Herein, a superhydrophobic Ag nanoparticle/glass microfibre filter (AgNP/GF) substrate was designed to realize the Raman detection of complex multiphase solutions. The hydrophobic three-dimensional net-like structure provides efficient Raman enhancement, making the substrate have extremely high detection limits for dye molecules and even achieving specific detection of the hexane phase component (thiram molecule) in a multiphase solution.