Peroxidase-like catalytic activity of Ag3PO4 nanocrystals prepared by a colloidal route

Nearly monodispersed Ag3PO4 nanocrystals with size of 10 nm were prepared through a colloidal chemical route. It was proven that the synthesized Ag3PO4 nanoparticles have intrinsic peroxidase-like catalytic activity. They can quickly catalyze oxidation of the peroxidase substrate 3, 3, 5, 5-tetramet...

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Bibliographic Details
Published in:PloS one 2014-10, Vol.9 (10), p.e109158
Main Authors: Liu, Yuanjun, Zhu, Guoxing, Yang, Jing, Yuan, Aihua, Shen, Xiaoping
Format: Article
Language:English
Subjects:
Biology and Life Sciences
Biomedical materials
Biotechnology
Catalysis
Catalytic activity
Catalytic oxidation
Chemical engineering
Chemical synthesis
Chemistry
Colloid chemistry
Colloids - chemistry
Crystals
Environmental chemistry
Enzymes
Glucose
Hydrogen peroxide
Kinetics
Nanocrystals
Nanomaterials
Nanoparticles
Oxidation
Peroxidase
Peroxidases - metabolism
Phosphates
Phosphates - chemistry
Photocatalysis
Physical Sciences
Reaction kinetics
Silver compounds
Silver Compounds - chemistry
Substrates
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Summary:Nearly monodispersed Ag3PO4 nanocrystals with size of 10 nm were prepared through a colloidal chemical route. It was proven that the synthesized Ag3PO4 nanoparticles have intrinsic peroxidase-like catalytic activity. They can quickly catalyze oxidation of the peroxidase substrate 3, 3, 5, 5-tetramethylbenzidine (TMB) in the presence of H2O2, producing a blue color. The catalysis reaction follows Michaelis-Menten kinetics. The calculated kinetic parameters indicate a high catalytic activity and the strong affinity of Ag3PO4 nanocrystals to the substrate (TMB). These results suggest the potential applications of Ag3PO4 nanocrystals in fields such as biotechnology, environmental chemistry, and medicine.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0109158