Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Horseradish Peroxidase-Based Biosensors with Different Nanotransducers for the Determination of Hydrogen Peroxide. / Nikolaev, K. G.; Ermakov, S. S.; Ermolenko, Yu E.; Navolotskaya, D. V.; Offenhäusser, A.; Mourzina, Yu G.
в: Journal of Analytical Chemistry, Том 76, № 4, 04.2021, стр. 510-517.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Horseradish Peroxidase-Based Biosensors with Different Nanotransducers for the Determination of Hydrogen Peroxide
AU - Nikolaev, K. G.
AU - Ermakov, S. S.
AU - Ermolenko, Yu E.
AU - Navolotskaya, D. V.
AU - Offenhäusser, A.
AU - Mourzina, Yu G.
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/4
Y1 - 2021/4
N2 - Abstract: We studied methods of the in situ synthesis of gold nanostructures on the electrode surface and of the directed electrochemical synthesis of nanodendrites to create biosensors based on horseradish peroxidase. The effect of nanostructuring of the transducer surface and its subsequent modification on the electroanalytical characteristics of sensors for the determination of hydrogen peroxide was studied. The use of these methods can significantly improve the performance characteristics of the biosensors, such as the sensitivity coefficient, limit of detection, and stability in the range of micromolar and submicromolar concentrations of hydrogen peroxide. The electrodes modified by the in situ synthesis of nanostructures with subsequent treatment with Meerwein’s reagent, as well as ultramicroelectrodes prepared by directional electrochemical synthesis, show low limits of detection for hydrogen peroxide, 0.2 and 0.08 µM, and high sensitivity coefficients, 0.71 and 0.84 A M–1 cm–2, respectively.
AB - Abstract: We studied methods of the in situ synthesis of gold nanostructures on the electrode surface and of the directed electrochemical synthesis of nanodendrites to create biosensors based on horseradish peroxidase. The effect of nanostructuring of the transducer surface and its subsequent modification on the electroanalytical characteristics of sensors for the determination of hydrogen peroxide was studied. The use of these methods can significantly improve the performance characteristics of the biosensors, such as the sensitivity coefficient, limit of detection, and stability in the range of micromolar and submicromolar concentrations of hydrogen peroxide. The electrodes modified by the in situ synthesis of nanostructures with subsequent treatment with Meerwein’s reagent, as well as ultramicroelectrodes prepared by directional electrochemical synthesis, show low limits of detection for hydrogen peroxide, 0.2 and 0.08 µM, and high sensitivity coefficients, 0.71 and 0.84 A M–1 cm–2, respectively.
KW - electrochemical biosensor
KW - enzyme
KW - gold nanostructures
KW - hydrogen peroxide
KW - modified electrode
KW - peroxidase
KW - ELECTRODES
KW - SENSOR
KW - GOLD NANOSTRUCTURES
KW - ELECTRICAL CONNECTION
KW - GLUCOSE
KW - DIRECT ELECTROCHEMISTRY
KW - REDOX CENTERS
KW - SYSTEMS
KW - SURFACES
UR - http://www.scopus.com/inward/record.url?scp=85104382635&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/7e8ff258-dcc5-3bea-baa4-5bf1cc00b93c/
U2 - 10.1134/s1061934821040080
DO - 10.1134/s1061934821040080
M3 - Article
AN - SCOPUS:85104382635
VL - 76
SP - 510
EP - 517
JO - Journal of Analytical Chemistry
JF - Journal of Analytical Chemistry
SN - 1061-9348
IS - 4
ER -
ID: 76606097