Bacterial Metabolites and Particle Size Determine Cerium Oxide Nanomaterial Biotransformation.
CeO2
Pseudomonas
X-ray absorption spectroscopy
biotransformation
metabolite
nanoparticle
organic acids
peak fitting
Journal
Environmental science & technology
ISSN: 1520-5851
Titre abrégé: Environ Sci Technol
Pays: United States
ID NLM: 0213155
Informations de publication
Date de publication:
06 12 2022
06 12 2022
Historique:
pubmed:
10
11
2022
medline:
5
1
2023
entrez:
9
11
2022
Statut:
ppublish
Résumé
Soil is a major receptor of manufactured nanomaterials (NMs) following unintentional releases or intentional uses. Ceria NMs have been shown to undergo biotransformation in plant and soil organisms with a partial Ce(IV) reduction into Ce(III), but the influence of environmentally widespread soil bacteria is poorly understood. We used high-energy resolution fluorescence-detected X-ray absorption spectroscopy (HERFD-XAS) with an unprecedented detection limit to assess Ce speciation in a model soil bacterium (
Identifiants
pubmed: 36350260
doi: 10.1021/acs.est.2c05280
doi:
Substances chimiques
ceric oxide
619G5K328Y
Cerium
30K4522N6T
Soil
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM