Silver-based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Juliana M Dias Soares; Helinando P de Oliveira

doi:10.1002/btpr.2809

Silver-based surface enhanced Raman spectroscopy devices for detection of organophosphorus pesticides traces

Biotechnol Prog. 2019 Jul;35(4):e2809. doi: 10.1002/btpr.2809. Epub 2019 Apr 2.

Authors

Juliana M Dias Soares¹, Helinando P de Oliveira^{1

2}

Affiliations

¹ RENORBIO, Biotechnology Graduate Program, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil.
² Materials Science Graduate Program, Institute of Materials Science, Universidade Federal do Vale do São Francisco, Juazeiro, Bahia, Brazil.

PMID: 30895736
DOI: 10.1002/btpr.2809

Abstract

The detection of traces of substances by surface-sensitive techniques such as surface enhanced Raman spectroscopy (SERS) explores the interaction of adsorbed molecules on plasmonic surfaces to improve the limit of detection of analytes. This article is an overview about recent development in SERS substrates applied in the detection of organophosphorus pesticides on plasmonic surfaces (arrays of metal nanoparticles). The morphology, roughness, chemical functionalization degree, and aggregation level of plasmonic centers are some of the critical parameters to be controlled in the optimization of SERS signal from specific analytes.

Keywords: SERS; hot spots; pesticides; silver nanoparticles.

Publication types

Research Support, Non-U.S. Gov't
Review

MeSH terms

Organophosphorus Compounds / analysis*
Pesticides / analysis*
Silver / chemistry*
Spectrum Analysis, Raman
Surface Properties

Substances

Organophosphorus Compounds
Pesticides
Silver