Recyclable enzyme mimic of cubic Fe<sub>3</sub>O<sub>4</sub>nanoparticles loaded on graphene oxide-dispersed carbon nanotubes with enhanced peroxidase-like catalysis and electrocatalysis

Wang, Hua; Li, Shuai; Si, Yanmei; Sun, Zongzhao; Li, Shuying; Lin, Yuehe

doi:10.1039/c4tb00541d

Cited by 96 publications

(56 citation statements)

References 46 publications

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“…[156] Theo btained hemin-graphene conjugate exhib- ited an activity more than two orders of magnitude higher than that of free hemin and more than one order of magnitude higher than that of other supported systems. [79] In these cases,the large surface areas of CNMs played key roles in dispersing and stabilizing nanozymes,r esulting in the enhancement of peroxidase-like activity. [79] In these cases,the large surface areas of CNMs played key roles in dispersing and stabilizing nanozymes,r esulting in the enhancement of peroxidase-like activity.…”

Section: Dispersing and Stabilizing Artificial Peroxidases By Cnmsmentioning

confidence: 99%

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

et al. 2018

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Nanozymes have advantages over natural enzymes, such as facile production on large scale, long storage time, low costs, and high stability in harsh environments. Carbon nanomaterials (CNMs), including fullerenes, carbon nanotubes, graphene, carbon quantum dots, and graphene quantum dots, have become a star family in materials science. As a new class of nanozymes, the catalytic activity of CNMs and their hybrids has been extensively reported. In this Minireview, recent progress of CNMs based artificial enzymes, focusing on those with peroxidase-like activity, has been summarized. The enzymatic properties, catalytic mechanisms, and novel applications of CNM nanozymes in sensing, therapy, and environmental engineering are discussed in detail. Additionally, we also highlight the remaining challenges and unsolved problems. With the fast development of bionanotechnology, the unique enzymatic properties and advantages of CNM nanozymes have received much attention and will continue to be an active and challenging field for the years to come.

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Section: Dispersing and Stabilizing Artificial Peroxidases By Cnmsmentioning

confidence: 99%

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

et al. 2018

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“…Two-dimensional graphene oxide (GO) has attracted remarkable considerations since it was first synthesised in large scale by chemical method [1][2][3]. GO is an interesting material because of its high surface-to-volume ratio, atomic thickness and mechanical strength [3,4].…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of decorated graphene oxide sheets with WO3 nanoparticles

Adineh

Rasuli

2015

Appl. Phys. A

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Potential applications of graphene oxide (GO) nanocomposites have attracted remarkable attention to modify its properties by functionalizing and decorating with nanoparticles. In this work, after synthesis of GO sheets by oxidation and exfoliation of natural graphite, they were decorated with tungsten oxide nanoparticles using arc discharge in GO solution. Transmission electron microscopy shows that the chain of WO 3 nanoparticles decorates the GO sheets. Fourier transform infrared spectroscopy and Raman spectroscopy show that WO 3 nanoparticles are attached to GO sheets by bond formation between the tungsten and oxygen of functional groups, especially with epoxides on the GO sheets. Nanocomposite production in different arc currents shows that the greater the electrical current, the stronger the bond is formed between WO 3 and GO. X-ray diffraction confirms that the WO 3 nanoparticles on the GO are highly crystalline in monoclinic phase. Moreover, by increasing the arc current from 20 to 40 A, the band gap energy of GO ? WO 3 decreases to *2.6 eV.

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“…For example, Wang et al. 58 proposed an protein‐free detection method with cubic Fe 3 O 4 nanoparticles to mimic the peroxidase effect. To complement the low catalytic activity, stability, and conductivity of the Fe 3 O 4 nanoparticles, CNTs, which are conductive and catalytic, were supports for Fe 3 O 4 loading.…”

Section: Analysis Of Hydrogen Peroxidementioning

confidence: 99%

Metal Oxide Nanoparticles in Electroanalysis

Lim

Gao

2015

Electroanalysis

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Many important technological advances have been made in the use of nanotechnology in electroanalysis in recent years. Coupled with the development of electroanalytical techniques for the detection of a wide variety of analytes, a lot of effort has been put into realizing accurate, sensitive, selective, and robust electrochemical assays and sensing devices for both laboratory and point‐of‐care applications. The use of metal oxide nanoparticles, in particular, has led to improvements in sensitivity, selectivity, and multiplexing capacity for the analysis of proteins, nucleic acids, as well as small molecules such as glucose and hydrogen peroxide. This article reviews the progress in the research and development of metal oxide nanoparticle‐based electroanalytical methods with an emphasis on their mechanism, performance and applications together with some discussion on challenges and perspectives in this exciting field.

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Recyclable enzyme mimic of cubic Fe₃O₄nanoparticles loaded on graphene oxide-dispersed carbon nanotubes with enhanced peroxidase-like catalysis and electrocatalysis

Abstract: Fe3O4nanocatalysts loaded on graphene oxide-dispersed CNTs (GCNTs) for GCNT–Fe3O4nanocomposites with enhanced aqueous stability and peroxidase-like catalysis and electrocatalysis.

Cited by 96 publications

References 46 publications

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

Facile synthesis of decorated graphene oxide sheets with WO3 nanoparticles

Metal Oxide Nanoparticles in Electroanalysis

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Recyclable enzyme mimic of cubic Fe3O4nanoparticles loaded on graphene oxide-dispersed carbon nanotubes with enhanced peroxidase-like catalysis and electrocatalysis

Abstract: Fe3O4nanocatalysts loaded on graphene oxide-dispersed CNTs (GCNTs) for GCNT–Fe3O4nanocomposites with enhanced aqueous stability and peroxidase-like catalysis and electrocatalysis.

Cited by 96 publications

References 46 publications

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

Carbon Nanozymes: Enzymatic Properties, Catalytic Mechanism, and Applications

Facile synthesis of decorated graphene oxide sheets with WO3 nanoparticles

Metal Oxide Nanoparticles in Electroanalysis

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Product

Resources

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Recyclable enzyme mimic of cubic Fe₃O₄nanoparticles loaded on graphene oxide-dispersed carbon nanotubes with enhanced peroxidase-like catalysis and electrocatalysis