首页|Nanozymes 'artificial peroxidase' in reduction and detection of organic peroxides

Nanozymes 'artificial peroxidase' in reduction and detection of organic peroxides

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Prussian Blue based nanozymes are able to catalyze reduction of organic peroxides similarly to the enzyme peroxidase. For the whole range of peroxides under study the catalytic rate constant for 3,3',5,5'-tetramethylben-zidine in case of nanozymes is significantly higher as compared to horseradish peroxidase. Moreover, the selectivity of nanozymes towards hydrogen peroxide relatively organic peroxides reduction is higher than that for the enzyme, which can be explained in terms of different ability of peroxides to penetrate to the bulk of catalytically synthesized Prussian Blue nanoparticles. On the contrary, selectivity of Prussian Blue film modified electrodes is much lower and even negligible among hydrogen, urea and methyl ethyl ketone peroxides. An ability to tune the selectivity would allow individual detection of peroxides in their complex mixtures with Prussian Blue nanostructures.

Organic peroxidesNanozymes'Artificial peroxidase'Prussian BlueElectrocatalysisPRUSSIAN-BLUEAMPEROMETRIC BIOSENSORNANOPARTICLESOXIDASETRANSDUCERELECTRODESANALOGS

Komkova, Maria A.、Zarochintsev, Alexander A.、Karyakin, Arkady A.

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Moscow MV Lomonosov State Univ

2022

Journal of Electroanalytical Chemistry

Journal of Electroanalytical Chemistry

EIISTP
ISSN:1572-6657
年,卷(期):2022.904
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