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Pt-Au Dendritic Nanoparticles with High Oxidase-like Activity for Detection of Ascorbic Acid
Cheng, Q; Yang, Y; Yang, LL
2020-10-20
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Issue10Pages:1169
SubtypeArticle
AbstractDue to high stability and sensitivity, inorganic nanomaterials with enzyme-like activity have brilliant application prospects. Tuning the enzyme-like activity plays great significance for promoting the development of nanozymes. In this work, Pt-Au dendritic nanoparticles (Pt-Au DNPs) with good uniformity and stability were synthe-sized by a simple liquid phase reduction method, and used to colorimetrically detect ascorbic acid (AA) by using their oxidase-like activity to catalyze the oxidation of TMB (3,3',5,5'-tetramethylbenzidine). The oxidase-like activity was found to be highly influenced by the composition and structure of Pt-Au dendritic nanoparticles, and the relationship between kinetic parameters and nanoparticle structure was investigated. Quantitative analysis of ascorbic acid in the 1-15 mu mol/L range was performed with good linear relationship, and the detection limit was 78 nmol/L. At the same time, it's found that continuous reaction would reduce the catalytic performance of Pt-Au DNPs, but still has the potential to be reused, which is not common. Data from this research not only suggests a method for synthesizing Pt-Au DNPs, but also shows its potential for AA analysis in biological samples.
DOI10.15541/jim20200005
WOS KeywordPEROXIDASE-LIKE ACTIVITY ; POLY(VINYL PYRROLIDONE) ; PLATINUM NANOPARTICLES ; COLORIMETRIC DETECTION ; MIMETIC ACTIVITY ; FACILE SYNTHESIS ; GRAPHENE OXIDE ; SULFITE ; COMPLEXES ; GLUCOSE
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27678
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Cheng, Q,Yang, Y,Yang, LL. Pt-Au Dendritic Nanoparticles with High Oxidase-like Activity for Detection of Ascorbic Acid[J]. JOURNAL OF INORGANIC MATERIALS,2020(10):1169.
APA Cheng, Q,Yang, Y,&Yang, LL.(2020).Pt-Au Dendritic Nanoparticles with High Oxidase-like Activity for Detection of Ascorbic Acid.JOURNAL OF INORGANIC MATERIALS(10),1169.
MLA Cheng, Q,et al."Pt-Au Dendritic Nanoparticles with High Oxidase-like Activity for Detection of Ascorbic Acid".JOURNAL OF INORGANIC MATERIALS .10(2020):1169.
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