Improvement of amperometric laccase biosensor using enzyme-immobilized gold nanoparticles coupling with ureasil polymer as a host matrix

Kavetskyy, Taras; Stasyuk, Nataliya; Smutok, Oleh; Demkiv, Olha; Kukhazh, Y.; Hoivanovych, Nataliia; Boev, V. I.; Ilcheva, V.; Petkova, T.; Gonchar, Mykhailo

doi:10.1007/s13404-019-00255-z

Cited by 15 publications

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“…This Sample 5 shows also heterogeneity of network, which in combination with rigidity explains the observable swelling problems and rapid sample disintegration. The suggested morphological model of the ureasilicate blend and the estimated free volume values open a wide range of possibilities for their practical application, in particular for analytical biotechnology in construction of ureasil‐based amperometric enzyme biosensors 21–23 …”

Section: Resultsmentioning

confidence: 99%

“…The suggested morphological model of the ureasilicate blend and the estimated free volume values open a wide range of possibilities for their practical application, in particular for analytical biotechnology in construction of ureasil-based amperometric enzyme biosensors. [21][22][23] SAIA (Slovak Academic Information Agency) for scholarships in the IPSAS within the National Scholarship Programme of the Slovak Republic. All SAXS measurements were performed in cooperation with the Physikalisch-Technische Bundesanstalt (PTB) at the PTB-FCM beamline at BESSY II where we thank Michael Krumrey and the operational beamline staff.…”

Section: Discussionmentioning

confidence: 99%

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Structural and free volume characterization of sol–gel organic–inorganic hybrids, obtained by co‐condensation of two ureasilicate stoichiometric precursors

Kavetskyy

Boev

Ilcheva

et al. 2021

J of Applied Polymer Sci

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In this study two hybrid organic-inorganic ureasilicate monomers with different length of polymer segments were chosen for preparation of sol-gel material that includes two moieties blended on the molecular scale. The first monomer was obtained by crosslinking a double terminated polyoxyalkyleneamine with an isocyanate modified silicone ethoxide and the second oneby crosslinking between the isocyanate modified silicone ethoxide with an amino modified silicone ethoxide. Sol-gel route was applied for transformation of the liquid monomer blends in transparent materials with varying degree of rigidity. The prepared samples were characterized by small-angle X-ray scattering, Fouriertransform infrared spectroscopy, positron annihilation lifetime spectroscopy, and swelling experiments. The results demonstrate that the structure of the obtained materials could be tuned by a simple variation of molar fraction ratio between these two monomers. This makes it possible to obtain nanostructured materials with predictable properties.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%