About: A Rotavirus Virus-Like Particle Confined Palladium Nanoreactor and Its Immobilization on Graphene Oxide for Catalysis

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About: A Rotavirus Virus-Like Particle Confined Palladium Nanoreactor and Its Immobilization on Graphene Oxide for Catalysis Goto Sponge NotDistinct Permalink

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Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	A Rotavirus Virus-Like Particle Confined Palladium Nanoreactor and Its Immobilization on Graphene Oxide for Catalysis
Creator	Zhu, Jie Yang, Kun Liang, · Zhu, J Li, Tingdong »more»
source	PMC
abstract	ABSTRACT: In this work, a new viral protein cage based nanoreactor was successfully constructed via encapsulating Tween 80 stabilized palladium nanoparticles (NPs) into rotavirus capsid VP2 virus-like particles (i.e. Pd@VP2). The effects of stabilizers including CTAB, SDS, Tween 80 and PVP on controlling the particle size of Pd NPs were investigated. They were further immobilized on graphene oxide (i.e. Pd@VP2/GO) by a simple mixing method. Some characterizations including FT-IR and XPS were conducted to study adsorption mode of Pd@VP2 on GO sheets. Their catalytic performance was estimated in the reduction of 4-nitrophenol (4-NP). Results showed that Tween 80 stabilized Pd NPs with the molar ratio of Pd to Tween 80 at 1:0.1 possessed the smallest size and the best stability as well. They were encapsulated into viral protein cages (mean size 49 ± 0.26 nm) to assemble confined nanoreactors, most of which contained 1–2 Pd NPs (mean size 8.15 ± 0.26 nm). As-prepared Pd@VP2 indicated an enhanced activity (apparent reaction rate constant k(app) = (3.74 ± 0.10) × 10(−3) s(−1)) for the reduction of 4-NP in comparison to non-confined Pd-Tween80 colloid (k(app) = (2.20 ± 0.06) × 10(−3) s(−1)). It was logically due to confinement effects of Pd@VP2 including high dispersion of Pd NPs and high effective concentration of substrates in confined space. Pd@VP2 were further immobilized on GO surface through C-N bond. Pd@VP2/GO exhibited good reusability after recycling for four runs, confirming the strong anchoring effects of GO on Pd@VP2. GRAPHIC ABSTRACT: [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10562-020-03252-6) contains supplementary material, which is available to authorized users.
has issue date	2020-05-14(xsd:dateTime)
bibo:doi	10.1007/s10562-020-03252-6
bibo:pmid	32421047
has license	no-cc
sha1sum (hex)	c8406e0953bcb764d33f348c3102f3440862a10b
schema:url	https://doi.org/10.1007/s10562-020-03252-6
resource representing a document's title	A Rotavirus Virus-Like Particle Confined Palladium Nanoreactor and Its Immobilization on Graphene Oxide for Catalysis
has PubMed Central identifier	PMC7223084
has PubMed identifier	32421047
schema:publication	Catal Letters
resource representing a document's body	covid:c8406e0953bcb764d33f348c3102f3440862a10b#body_text
is schema:about of	named entity 'cage' named entity 'simple' named entity 'app' named entity 'performance' named entity 'logically' »more»

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