A combined spectroscopic and
Journal
RSC advances
ISSN: 2046-2069
Titre abrégé: RSC Adv
Pays: England
ID NLM: 101581657
Informations de publication
Date de publication:
04 Feb 2020
04 Feb 2020
Historique:
received:
16
12
2019
accepted:
20
01
2020
entrez:
2
5
2022
pubmed:
4
2
2020
medline:
4
2
2020
Statut:
epublish
Résumé
Recently, metal exchange (transmetalation) techniques have become popular for the post-synthesis modification of metal organic complexes (MOCs). Here, we have explored the possibility of toxic metal ion (mercury (Hg)) exchange from a model polyphenol, curcumin, which is a very important food additive, using a much less toxic counterpart (copper). While the attachment of different metals on the polyphenol was confirmed using a picosecond resolved fluorescence technique, the surface plasmon resonance (SPR) band of the Ag nanoparticle (NP) was employed as a tool to detect uncoupled Hg ions in aqueous media. Furthermore, a microscopic understanding of the experimental observations was achieved through density functional theory (DFT) based theoretical studies. The presence of Cu ions in the vicinity of Hg-curcumin, upon ground state optimization, was observed to extrude most of the Hg from the curcumin complex and replace its position in the complex. The study may find relevance in the development of a purification strategy for food additives heavily contaminated with toxic metals.
Identifiants
pubmed: 35497419
doi: 10.1039/c9ra10596d
pii: c9ra10596d
pmc: PMC9049538
doi:
Types de publication
Journal Article
Langues
eng
Pagination
5636-5647Informations de copyright
This journal is © The Royal Society of Chemistry.
Déclaration de conflit d'intérêts
We declare that we have no conflict of interest.
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