Metal-organic framework (MOF-5) coated SERS active gold gratings: A platform for the selective detection of organic contaminants in soil.
Gold grating
Metal-organic framework
Organophosphorus pesticides
Reproducibility
SERS
Selectivity
Soil sample
Surface-assisted MOF growth
Journal
Analytica chimica acta
ISSN: 1873-4324
Titre abrégé: Anal Chim Acta
Pays: Netherlands
ID NLM: 0370534
Informations de publication
Date de publication:
30 Aug 2019
30 Aug 2019
Historique:
received:
30
01
2019
revised:
22
03
2019
accepted:
28
03
2019
entrez:
11
5
2019
pubmed:
11
5
2019
medline:
11
5
2019
Statut:
ppublish
Résumé
In this work, we proposed the functionalization of a surface plasmon-polariton (SPP)-supported gold grating surface with the metal-organic framework (MOF-5) for sensitive, selective and reproducible surface-enhanced Raman scattering (SERS) detection of organophosphorus pesticides. Homogeneous distribution of plasmon intensity along the Au grating surface ensures the high reproducibility of SERS results (deviation of Raman peak intensity does not exceed the 4% along the sample). The surface-assisted growth of thin MOF-5 film was accomplished in two steps procedure: (i) covalent grafting by 4-carboxyphenyl groups and (ii) the immersion of samples in the mother liquid of MOF-5. Proposed SERS chip proved itself to be a perfect analytical probe for the detection of organophosphorus pesticides with high reliability and low detection limit up to 10
Identifiants
pubmed: 31072479
pii: S0003-2670(19)30376-9
doi: 10.1016/j.aca.2019.03.058
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
70-79Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.