Volume 134, Issue 36 45278
Article

Laccase-containing ureasil–polymer composite as the sensing layer of an amperometric biosensor

Taras Kavetskyy

Corresponding Author

Taras Kavetskyy

Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine

The John Paul II Catholic University of Lublin, 20-950 Lublin, Poland

Correspondence to: T. Kavetskyy (E-mail: [email protected])Search for more papers by this author
Oleh Smutok

Oleh Smutok

Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine

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Mykhailo Gonchar

Mykhailo Gonchar

Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine

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Olha Demkiv

Olha Demkiv

Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine

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Halyna Klepach

Halyna Klepach

Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine

Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine

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Yuliia Kukhazh

Yuliia Kukhazh

Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine

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Ondrej Šauša

Ondrej Šauša

Institute of Physics, Slovak Academy of Sciences, 84511 Bratislava, Slovak Republic

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Tamara Petkova

Tamara Petkova

Institute of Electrochemistry and Energy Systems, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

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Victor Boev

Victor Boev

Institute of Electrochemistry and Energy Systems, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

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Vania Ilcheva

Vania Ilcheva

Institute of Electrochemistry and Energy Systems, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

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Plamen Petkov

Plamen Petkov

Thin Films Technology Laboratory, University of Chemical Technology and Metallurgy, 1756 Sofia, Bulgaria

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Andrey L. Stepanov

Andrey L. Stepanov

Kazan Physical-Technical Institute, Russian Academy of Sciences, 420029 Kazan, Russian Federation

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First published: 19 May 2017
Citations: 14

ABSTRACT

Innovative amperometric biosensors for monitoring the level of wastewater pollution have been constructed on the surface of the gold planar electrodes C220AT “DropSens” by using the organic–inorganic ureasil-based composites as host matrixes and immobilized commercial laccase from Trametes versicolor. It was found that the biosensor based on the ureasil–chalcogenide glass composite is characterized by a very high sensitivity (67,540 А M−1 m−2) that is 38.3 times higher than for pure ureasil (the sensitivity of the bioelectrode was calculated as 1762 А M−1 m−2). On the other hand, application of the ureasil–chalcogenide glass composite with incorporated silver nanoparticles (NPs) synthesized by high-dose (1.0 × 1017 Ag+/cm2) 30 keV Ag+ ion implantation results in decreasing the biosensor sensitivity up to 2390 times (the sensitivity of the bioelectrode was 28.3 А M−1 m−2). The role of additives (chalcogenide glass and silver NPs) in the ureasil matrix on the biofunctionality of the biosensors produced is considered. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45278.

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