Catalytic nanocrystalline coordination polymers as an efficient peroxidase mimic for labeling and optical immunoassays

Čunderlová, Veronika; Hlaváček, Antonín; Horňáková, Veronika; Peterek, Miroslav; Němeček, Daniel; Hampl, Aleš; Eyer, Luděk; Skládal, Petr

doi:10.1007/s00604-015-1697-z

Cited by 38 publications

(26 citation statements)

References 32 publications

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“…Although the group led by Gu and Zhang reported for the first time that PB-modified γ-Fe 2 O 3 nanoparticles had POD-like activity [25], the first study about the use of PB alone as nanozyme was performed by Zhang et al [26], which observed a catalytic activity towards the hydrogen peroxide-mediated oxidation of classical peroxidase substrate ABTS to produce a colored product. The catalysis followed Michaelis-Menten kinetics and showed a strong affinity for H 2 O 2 .Čunderlová et al [27] determined that cubic crystals of PB of 15 nm diameter presented a high catalytic POD-like activity. The estimated value of K M for TMB was 0.76 mmol L −1 , and for H 2 O 2 was 840 mmol L −1 (for the same substrates, HRP presented values of 0.147 and 790 mmol L −1 , respectively).…”

Section: Prussian Blue and Prussian Blue Analoguesmentioning

confidence: 99%

“…The catalysis followed Michaelis–Menten kinetics and showed a strong affinity for H 2 O 2 . Čunderlová et al [ 27 ] determined that cubic crystals of PB of 15 nm diameter presented a high catalytic POD-like activity. The estimated value of K M for TMB was 0.76 mmol L −1 , and for H 2 O 2 was 840 mmol L −1 (for the same substrates, HRP presented values of 0.147 and 790 mmol L −1 , respectively).…”

Section: Peroxidase-like Activitymentioning

confidence: 99%

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Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Estelrich

Busquets

2021

IJMS

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Nanozymes, nanomaterials with enzyme-like activities, are becoming powerful competitors and potential substitutes for natural enzymes because of their excellent performance. Nanozymes offer better structural stability over their respective natural enzymes. In consequence, nanozymes exhibit promising applications in different fields such as the biomedical sector (in vivo diagnostics/and therapeutics) and the environmental sector (detection and remediation of inorganic and organic pollutants). Prussian blue nanoparticles and their analogues are metal–organic frameworks (MOF) composed of alternating ferric and ferrous irons coordinated with cyanides. Such nanoparticles benefit from excellent biocompatibility and biosafety. Besides other important properties, such as a highly porous structure, Prussian blue nanoparticles show catalytic activities due to the iron atom that acts as metal sites for the catalysis. The different states of oxidation are responsible for the multicatalytic activities of such nanoparticles, namely peroxidase-like, catalase-like, and superoxide dismutase-like activities. Depending on the catalytic performance, these nanoparticles can generate or scavenge reactive oxygen species (ROS).

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Section: Prussian Blue and Prussian Blue Analoguesmentioning

confidence: 99%

Section: Peroxidase-like Activitymentioning

confidence: 99%

Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Estelrich

Busquets

2021

IJMS

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“…With the rapid development of nanotechnology, the variety and application field of nanoparticles have been greatly expanded. In recent years, some nanoparticles have been found to have catalytic activity as the natural enzyme . Because of the stable structure, simple preparation method and low production cost, nanoparticles have become a hot research hotspot as substitutes of natural enzymes.…”

Section: Introductionmentioning

confidence: 99%

“…Pt nanoparticles also own the capability of uric acid enzyme . These nanoparticles, playing the role of natural enzymes, have been widely used in the fields of immunoassay, determination of metal ions, target sensor, degradation of pollutants, hybridization of nucleic acids and organic synthesis …”

Section: Introductionmentioning

confidence: 99%

Synthesis of CeO₂ nanoparticles with different morphologies and their properties as peroxidase mimic

Zhang

Wang

et al. 2018

J Am Ceram Soc

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The overall objective of this work was to identify and determine the controlling factors of catalytic activity of CeO2 nanoparticles with different properties. Therefore, four kinds of CeO2 nanoparticles are successfully synthesized and used as peroxidase mimics. The results reveal that the catalytic activity is related to specific surface area and surface oxygen (Osur) content. For different CeO2 nanoparticles, specific surface area is the leading factor of catalytic activity. The catalytic activity increases with the increasing specific surface area. If the CeO2 nanoparticles have similar specific surface area, the less Osur contains, the lower catalytic activity will be. Meanwhile, crystallinity is not the influence factor of catalytic activity. Bamboo‐like CeO2 (B‐CeO2) nanoparticles show excellent catalytic activity and the reaction conditions are optimized. Furthermore, the catalytic activity of B‐CeO2 nanoparticles decreases very slightly after 15 cycles of the catalysis experiment. Therefore, B‐CeO2 nanoparticles can serve as effective recyclable peroxidase mimics.

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“…Some NPs have a stable structure, low production cost, simple preparation method, and catalytic activity of natural enzymes. They have become a research hotspot of natural enzyme substitutes. − Fe 3 O 4 , Co 3 O 4 , Pt, Pd, and Ag NPs have the properties of a catalase. − These NPs have been widely used in immunoassays, determination of metal ions, as target sensors, nucleic acid hybridization, and organic synthesis …”

Section: Introductionmentioning

confidence: 99%

Differences in Performance of Immunosensors Constructed Based on CeO₂-Simulating Auxiliary Enzymes

Zhao

et al. 2021

ACS Biomater. Sci. Eng.

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The morphology effect of cerium oxide (CeO2) has always been the focus of catalysis research. Few people have reported the relationship between the morphology of CeO2 and electrochemical performance in sensors. In this paper, a polyaniline (PANI) matrix is used as the dispersant and stabilizer, ultrafine Au nanoparticles (NPs) (Au@PANI) are uniformly embedded in the PANI matrix, and Au NPs@PANI is fixed on the surface of CeO2 with different morphologies and sizes (Spindle CeO2:(SCe), octahedron CeO2 (OCe)). The morphology and crystal structure of CeO2 were adjusted under different ratios of ethanol and water, and the effect of CeO2 was evaluated. The synthesized CeO2–Au@PANI has different morphologies, sizes, and electrochemical properties. The electrochemical catalytic behavior of CeO2–Au@PANI was studied by using hydrogen peroxide (H2O2) as the reaction substrate. The instantaneous current method (I–T) was used to further study the electrochemical amplification effect, and the best performance was obtained.

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Catalytic nanocrystalline coordination polymers as an efficient peroxidase mimic for labeling and optical immunoassays

Cited by 38 publications

References 32 publications

Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Synthesis of CeO₂ nanoparticles with different morphologies and their properties as peroxidase mimic

Differences in Performance of Immunosensors Constructed Based on CeO₂-Simulating Auxiliary Enzymes

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Catalytic nanocrystalline coordination polymers as an efficient peroxidase mimic for labeling and optical immunoassays

Cited by 38 publications

References 32 publications

Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Prussian Blue: A Nanozyme with Versatile Catalytic Properties

Synthesis of CeO2 nanoparticles with different morphologies and their properties as peroxidase mimic

Differences in Performance of Immunosensors Constructed Based on CeO2-Simulating Auxiliary Enzymes

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Product

Resources

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Synthesis of CeO₂ nanoparticles with different morphologies and their properties as peroxidase mimic

Differences in Performance of Immunosensors Constructed Based on CeO₂-Simulating Auxiliary Enzymes