Abstract
Nanoceria is considered as a potent antioxidant (free radical scavenger) and its enzymatic activity is reported to be a function of the oxidation state of surface cerium ions. Here we demonstrate phosphine ligand-dependent enzymatic activity of nanoceria irrespective of its as-synthesized oxidation state.
MeSH terms
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Catalase / metabolism*
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Cerium / pharmacology*
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Free Radical Scavengers / pharmacology*
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Ligands
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Metal Nanoparticles*
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Molecular Mimicry*
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Oxidation-Reduction
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Phosphines / chemistry
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Phosphines / metabolism*
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Phosphites / chemistry
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Reactive Oxygen Species / metabolism*
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Spectrum Analysis / methods
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Superoxide Dismutase / metabolism*
Substances
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Free Radical Scavengers
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Ligands
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Phosphines
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Phosphites
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Reactive Oxygen Species
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tris(2,4,6-trimethoxyphenyl)phosphine
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Cerium
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ceric oxide
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triethyl phosphite
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Catalase
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Superoxide Dismutase
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phosphine