About: Assessment of antioxidant capacity by using of cyclic voltammetry

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	It is a common knowledge that oxidative stress relates with imbalance between concentration of prooxidants and the antioxidant. Moreover, it appears that these changes are very important in the pathophysiology of critically ill patients. The main aim of this contribution is to study antioxidant activity by using of cyclic voltammetry (CV) at carbon working electrodes. For measuring antioxidant capacity, we utilized carbon paste electrodes, which are easy to prepare. As a part of carbon paste, microparticles of sizes 2-5 mm (expanded carbon and carbon nanoparticles) were used. Acetate and phosphate buffers were tested as the supporting electrolytes. In animal organisms ascorbic and uric acids belong to the important antioxidants. Therefore, these two dominant antioxidants were investigated by using of above-mentioned CV at carbon paste electrodes. For the assessment of antioxidant capacity the sum of the areas of all signals measured in the samples were used. The highest signals were detected in the potential range from +0.5 to +0.8 V. The experimental results were compared with antioxidant capacity measured by Trolox (UV-VIS spectrometry). Changes in antioxidant capacity were observed in patients with medulloblastoma by using of both methods. It is a common knowledge that oxidative stress relates with imbalance between concentration of prooxidants and the antioxidant. Moreover, it appears that these changes are very important in the pathophysiology of critically ill patients. The main aim of this contribution is to study antioxidant activity by using of cyclic voltammetry (CV) at carbon working electrodes. For measuring antioxidant capacity, we utilized carbon paste electrodes, which are easy to prepare. As a part of carbon paste, microparticles of sizes 2-5 mm (expanded carbon and carbon nanoparticles) were used. Acetate and phosphate buffers were tested as the supporting electrolytes. In animal organisms ascorbic and uric acids belong to the important antioxidants. Therefore, these two dominant antioxidants were investigated by using of above-mentioned CV at carbon paste electrodes. For the assessment of antioxidant capacity the sum of the areas of all signals measured in the samples were used. The highest signals were detected in the potential range from +0.5 to +0.8 V. The experimental results were compared with antioxidant capacity measured by Trolox (UV-VIS spectrometry). Changes in antioxidant capacity were observed in patients with medulloblastoma by using of both methods. (en)
Title	Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application (en)
skos:prefLabel	Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application (en)
skos:notation	RIV/62156489:43210/09:00152828!RIV12-AV0-43210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(KAN208130801)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Húska, Dalibor Adam, Vojtěch Horna, Aleš Hubálek, Jaromír Kizek, René
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Agronomická fakulta
http://linked.open...dnocenehoVysledku	304179
http://linked.open...ai/riv/idVysledku	RIV/62156489:43210/09:00152828
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	antioxidant capacity (en)
http://linked.open.../riv/klicoveSlovo	antioxidant capacity
http://linked.open...ontrolniKodProRIV	[781F41113B43]
http://linked.open...v/mistoKonaniAkce	Nitra
http://linked.open...i/riv/mistoVydani	Nitra
http://linked.open...i/riv/nazevZdroje	Antioxidanty 2009: zborník z I. ročníka vedeckej konferencie s medzinárodnou účasťou
http://linked.open...in/vavai/riv/obor	CE
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	New design and exploiting nanobiosensors and nanosensors to target medicine (NANOSEMED)
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Adam, Vojtěch Eckschlager, Tomáš Hubálek, Jaromír Horna, Aleš Húska, Dalibor Kizek, René
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2009-01-01 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	SPU
https://schema.org/isbn	978-80-552-0209-9
http://localhost/t...ganizacniJednotka	43210

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