Enzyme Mimetic Activity of ZnO-Pd Nanosheets Synthesized via a Green Route.
Erigeron annuus leaf extract
ZnO-Pd nanosheets
green synthesis
nanozyme
peroxidase mimetic activity
Journal
Molecules (Basel, Switzerland)
ISSN: 1420-3049
Titre abrégé: Molecules
Pays: Switzerland
ID NLM: 100964009
Informations de publication
Date de publication:
02 Jun 2020
02 Jun 2020
Historique:
received:
28
04
2020
revised:
28
05
2020
accepted:
31
05
2020
entrez:
6
6
2020
pubmed:
6
6
2020
medline:
16
2
2021
Statut:
epublish
Résumé
Recent developments in the area of nanotechnology have focused on the development of nanomaterials with catalytic activities. The enzyme mimics, nanozymes, work efficiently in extreme pH and temperature conditions, and exhibit resistance to protease digestion, in contrast to enzymes. We developed an environment-friendly, cost-effective, and facile biological method for the synthesis of ZnO-Pd nanosheets. This is the first biosynthesis of ZnO-Pd nanosheets. The synthesized nanosheets were characterized by UV-visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray. The d-spacing (inter-atomic spacing) of the palladium nanoparticles in the ZnO sheets was found to be 0.22 nm, which corresponds to the (111) plane. The XRD pattern revealed that the 2θ values of 21.8°, 33.3°, 47.7°, and 56.2° corresponded with the crystal planes of (100), (002), (112), and (201), respectively. The nanosheets were validated to possess peroxidase mimetic activity, which oxidized the 3,3',5,5'-tetramethylbenzidine (TMB) substrate in the presence of H
Identifiants
pubmed: 32498444
pii: molecules25112585
doi: 10.3390/molecules25112585
pmc: PMC7321175
pii:
doi:
Substances chimiques
Palladium
5TWQ1V240M
Peroxidase
EC 1.11.1.7
Zinc Oxide
SOI2LOH54Z
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : National Research Foundation of Korea
ID : NRF-2012M3A9C4048775
Organisme : National Research Foundation of Korea
ID : NRF-2017M3A9C8031995
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