V<sub>2</sub>O<sub>5</sub> Nanowires with an Intrinsic Peroxidase‐Like Activity

André, Rute; Natálio, Filipe; Humanes, Madalena; Leppin, Jana; Heinze, Katja; Wever, Ron; Schröder, Heinz C.; Müller, Werner; Tremel, Wolfgang

doi:10.1002/adfm.201001302

Cited by 639 publications

(348 citation statements)

References 69 publications

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“…Owing to the excellent catalytic properties of these nanomaterials, Scrimin and co-workers 7 called them 'nanozymes' in analogy to the nomenclature of catalytically active polymers (synzymes). Magnetic nanoparticles, 4,9 CeO 2 , 6,10-12 V 2 O 5 , 13,14 gold nanoparticles, 7,8,[15][16][17][18] PtPd ÀFe 3 O 4 , 19,20 carbon nanotubes, 21,22 graphene oxide and graphene nanocomposites 23,24 and other types of nanoparticle have been found to exhibit unique enzyme-like catalytic activities and have already shown promising applications in medicine, biotechnology and environmental chemistry.…”

Section: Introductionmentioning

confidence: 99%

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Lin

Ren

2014

NPG Asia Mater

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There has been great interest in the development of artificial inorganic nanomaterials that mimic natural peroxidases. Unfortunately, these nanomaterials usually possess relatively low catalytic activity and are generally considered to work effectively only within a narrow temperature range (for example, they are inactive at high temperatures). Intriguingly, adenosine triphosphate (ATP) is not only the ubiquitous energy currency of life, it is also known to form charge transfer complexes with aromatic molecules and to participate in free radical redox chemistry. Inspired by its unique properties, for the first time, we reveal a novel catalytic role for ATP and show that ATP is an ideal boosting agent for markedly improving the catalytic activity of a peroxidase mimic over a broad temperature range and, more significantly, making it possible to achieve exceptionally efficient high-temperature catalytic reactions. These observations pave the way for identifying highly effective modulators that promote the overall performance of artificial enzymes. NPG Asia Materials (2014) 6, e114; doi:10.1038/am.2014.42; published online 18 July 2014 INTRODUCTION Natural enzymes, which are biological molecules of immense catalytic force and high substrate specificity, have attracted considerable attention for use in pharmaceutical processes, agrochemical production, biosensing and food industry applications. 1-3 However, their applications are largely limited by their intrinsic properties, such as the sensitivity of catalytic activity to environmental conditions and low operational stability (owing to denaturation and digestion), as well as by the high costs of preparation and purification. 4,5 To circumvent the aforementioned limitations, tremendous efforts have been made to develop biomimetic catalysts. Among the countless examples of artificial enzymes, the emergence of and recent advances in nanotechnology and biology provide new opportunities for designing functional nanomaterials with enzyme-like characteristics. 4,[6][7][8] These materials might serve as novel and promising artificial enzymes with the advantages of facile preparation, tunability of catalytic activity and high stability under stringent conditions. Owing to the excellent catalytic properties of these nanomaterials, Scrimin and co-workers 7 called them 'nanozymes' in analogy to the nomenclature of catalytically active polymers (synzymes). Magnetic nanoparticles, 4,9 CeO 2 , 6,10-12 V 2 O 5 , 13,14 gold nanoparticles, 7,8,[15][16][17][18] PtPd ÀFe 3 O 4 , 19,20 carbon nanotubes, 21,22 graphene oxide and graphene nanocomposites 23,24 and other types of nanoparticle have been found to exhibit unique enzyme-like catalytic activities and have

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Section: Introductionmentioning

confidence: 99%

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Lin

Ren

2014

NPG Asia Mater

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“…After the discovery of Fe 3 O 4 (Gao et al, 2007), such behavior has been identified for ferromagnetic NPs (Shi et al, 2011), ceria oxide NPs (Asati et al, 2009), V 2 O 5 nanowires (André et al, 2011), carbon-based nanomaterials (Song et al, 2010, Song et al, 2011, etc. In contrast to fragile HRP, NPs are very stable and retain their activity over a long period.…”

Section: Immunosensing Procedures For Ceamentioning

confidence: 99%

Immunosensing procedures for carcinoembryonic antigen using graphene and nanocomposites

Luong

Vashist

2017

Biosensors and Bioelectronics

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“…Accordingly, there is a potential need for its replacement using suitable HRP-mimetic material. Many nanomaterials, such as metal oxide, noble metals, PB, graphene and their composites have also been reported to possess intrinsic peroxidaselike activity [18][19][20][21][22]. PB is a well-known metallic complex and has been used as an artificial peroxidase for H 2 O 2 reduction [14,15,23,24].…”

Section: Peroxidase Mimetic Activity Of Graphene-pb Nanocompositementioning

confidence: 99%

3-Aminopropyltrimethoxysilane and 3-Glycidoxypropyltrimethoxysilane Mediated Synthesis of Graphene and its Nanocomposite: Potential Bioanalytical Appliactions

Pandey¹

2014

J Anal Bioanal Tech

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We report herein, 3-aminopropyltrimethoxysilane (3-APTMS) and 3-glycidoxypropyltrimethoxysilane (3-GPTMS) mediated reduction of graphene oxide into graphene. The resulting graphene has been characterized by UV-VIS and Raman spectroscopy. The as synthesized graphene is used to make polycrystalline nanocomposite of prussian blue having admirable peroxidase mimetic ability. The apparent Km value of the graphene-PB nanodispersion with hydrogen peroxide (H 2 O 2 ) as the substrate is found to be 6.8 mM. The as synthesized material not only validates the peroxidase-like activity, but also exhibits excellent electrochemical activity for biomedical applications. Electrocatalytic reduction of H 2 O 2 shows electroanalytical sensitivity to the order of 850 µA mM -1 cm -2 with lowest detection limit of 10 nM.

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V₂O₅ Nanowires with an Intrinsic Peroxidase‐Like Activity

Cited by 639 publications

References 69 publications

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Immunosensing procedures for carcinoembryonic antigen using graphene and nanocomposites

3-Aminopropyltrimethoxysilane and 3-Glycidoxypropyltrimethoxysilane Mediated Synthesis of Graphene and its Nanocomposite: Potential Bioanalytical Appliactions

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V2O5 Nanowires with an Intrinsic Peroxidase‐Like Activity

Cited by 639 publications

References 69 publications

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Incorporating ATP into biomimetic catalysts for realizing exceptional enzymatic performance over a broad temperature range

Immunosensing procedures for carcinoembryonic antigen using graphene and nanocomposites

3-Aminopropyltrimethoxysilane and 3-Glycidoxypropyltrimethoxysilane Mediated Synthesis of Graphene and its Nanocomposite: Potential Bioanalytical Appliactions

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V₂O₅ Nanowires with an Intrinsic Peroxidase‐Like Activity