Prussian Blue based flow-through (bio)sensors in power generation mode: New horizons for electrochemical analyzers

Komkova, Maria A.; Andreev, Evgueni M.; Ibragimova, Olga A.; Karyakin, Arkady A.

doi:10.1016/j.snb.2019.04.134

Cited by 7 publications

(10 citation statements)

References 21 publications

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“…The charge transfer through two transition metal ions in the complex-compound salt, as well as the nanosize of HCF particles, are the reasons for PBAs' redox activity and super-magnetic properties. Due to these remarkable properties, PBAs are widely applied as NZs in biosensors [146,147,150,[164][165][166][167][168] and alternative energy sources [149,160,165,168].…”

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

“…The first communications concerning electrochemical reduction of H 2 O 2 on PB-modified glassy carbon electrode were done by Itaya and colleagues [164,165]. Karyakin and colleagues published many reports over the last 25 years on the use of PB as an artificial PO in amperometric biosensors [13,150,162,[176][177][178][179][180][181]. In 2000, this group named PB an "artificial PO" [177].…”

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

“…PB and its analogues (PBAs) are cheap, easy to synthesize, environmentally friendly and are prospect for wide applications in different fields, including basic research and industrial purposes [ 10 , 147 , 148 , 149 , 150 , 151 ] as well as in medicine [ 24 , 152 , 153 , 154 , 155 , 156 , 157 , 158 ].…”

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

“…Despite their multifunctionality, the composition of PBAs is quite complicated and tightly depends on a method of synthesis and storage conditions. [ 146 , 149 , 150 , 151 , 159 , 160 ]. Insoluble PB can be described by the formula Fe 4 [Fe(CN) 6 ] 3 .…”

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Stasyuk

Smutok

Demkiv

et al. 2020

Sensors

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The current review is devoted to nanozymes, i.e., nanostructured artificial enzymes which mimic the catalytic properties of natural enzymes. Use of the term “nanozyme” in the literature as indicating an enzyme is not always justified. For example, it is used inappropriately for nanomaterials bound with electrodes that possess catalytic activity only when applying an electric potential. If the enzyme-like activity of such a material is not proven in solution (without applying the potential), such a catalyst should be named an “electronanocatalyst”, not a nanozyme. This paper presents a review of the classification of the nanozymes, their advantages vs. natural enzymes, and potential practical applications. Special attention is paid to nanozyme synthesis methods (hydrothermal and solvothermal, chemical reduction, sol-gel method, co-precipitation, polymerization/polycondensation, electrochemical deposition). The catalytic performance of nanozymes is characterized, a critical point of view on catalytic parameters of nanozymes described in scientific papers is presented and typical mistakes are analyzed. The central part of the review relates to characterization of nanozymes which mimic natural enzymes with analytical importance (“nanoperoxidase”, “nanooxidases”, “nanolaccase”) and their use in the construction of electro-chemical (bio)sensors (“nanosensors”).

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Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

Section: Nanozymes As Peroxidase Mimeticsmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Stasyuk

Smutok

Demkiv

et al. 2020

Sensors

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“…The first communications concerning electrochemical reduction of H2O2 on PB-modified glassy carbon electrode were done by Itaya and colleagues [20]. Numerous reports on the use of PB as an artificial PO in amperometric biosensors were published by Karyakin and colleagues over the last 25 years [17,[21][22][23][24]. In 2000, this group named PB an "artificial PO" [21].…”

Section: Introductionmentioning

confidence: 99%

“Green” Nanozymes: Synthesis, Characterization, and Application in Amperometric (Bio)sensors

Gayda

Demkiv

Gurianov

et al. 2020

The 1st International Electronic Conference on Biosensors

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Nanozymes (NZs) are catalytically active nanomaterials that have enzyme-like activity but possess increased stability and greater availability due to the fact of their simpler preparation technologies. Nanozymes as nanoscale artificial enzymes demonstrate various catalytic specificities as oxidoreductases, such as peroxidase, catalase, laccase, and others as well as hydrolases, proteases, endonucleases, DNA-ases, NO synthases, etc. A broad variety of NZs exhibits dual- or multienzyme mimetic activity. Nanozymes as stable, low-cost mimetics of natural enzymes have a high potential for application in different branches of biotechnology including scientific investigations, industry, and ecology. Nanozymes can be applied in medicine as diagnostic tools and components of therapeutic drugs. Since NZs have high catalytic activity and chemical and biological stability, they are very promising in the construction of biosensors and biofuel cells. For these reasons, the search for simple methods of synthesis and characterization of different NZs is a very important and real problem. The “green” synthesis of Prussian blue analogous as peroxidase-like NZs using oxido-reductases is described in this study. The obtained green-synthesized hexacyanoferrates (gHCFs) of transition metals were characterized by structure, size, composition, catalytic properties, electro-mediator activities, and substrate specificity. Copper hexacyanoferrate (gCuHCF) was studied in more detail. When immobilized on a graphite electrode (GE), gCuHCF under special conditions of pH and tension gave amperometric signals on hydrogen peroxide and can be used as a peroxidase mimetic in oxidase-based biosensors. Under other conditions, gCuHCF/GE reacts to other analytes. We propose that gHCFs of transition metals synthesized via enzymes may become prospect platforms for the construction of multi-functional amperometric (bio)sensors.

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Transition metal hexacyanoferrates as catalysts for (bio)sensors

Komkova

Karyakin²

2023

Comprehensive Inorganic Chemistry III

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Prussian Blue based flow-through (bio)sensors in power generation mode: New horizons for electrochemical analyzers

Cited by 7 publications

References 21 publications

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

Synthesis, Catalytic Properties and Application in Biosensorics of Nanozymes and Electronanocatalysts: A Review

“Green” Nanozymes: Synthesis, Characterization, and Application in Amperometric (Bio)sensors

Transition metal hexacyanoferrates as catalysts for (bio)sensors

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