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Statements

Subject Item
n2:RIV%2F62156489%3A43210%2F09%3A00152828%21RIV12-AV0-43210___
rdf:type
skos:Concept n20:Vysledek
dcterms: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.
dcterms:title
Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application
skos:prefLabel
Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application Assessment of antioxidant capacity by using of cyclic voltammetry - Clinical application
skos:notation
RIV/62156489:43210/09:00152828!RIV12-AV0-43210___
n3:aktivita
n11:P
n3:aktivity
P(KAN208130801)
n3:dodaniDat
n17:2012
n3:domaciTvurceVysledku
n6:2307049 n6:9000240 n6:2620324 n6:4489705 n6:4995775
n3:druhVysledku
n16:D
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
304179
n3:idVysledku
RIV/62156489:43210/09:00152828
n3:jazykVysledku
n19:eng
n3:klicovaSlova
antioxidant capacity
n3:klicoveSlovo
n9:antioxidant%20capacity
n3:kontrolniKodProRIV
[781F41113B43]
n3:mistoKonaniAkce
Nitra
n3:mistoVydani
Nitra
n3:nazevZdroje
Antioxidanty 2009: zborník z I. ročníka vedeckej konferencie s medzinárodnou účasťou
n3:obor
n14:CE
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
6
n3:projekt
n4:KAN208130801
n3:rokUplatneniVysledku
n17:2009
n3:tvurceVysledku
Hubálek, Jaromír Kizek, René Húska, Dalibor Eckschlager, Tomáš Adam, Vojtěch Horna, Aleš
n3:typAkce
n18:EUR
n3:zahajeniAkce
2009-01-01+01:00
s:numberOfPages
4
n5:hasPublisher
SPU
n21:isbn
978-80-552-0209-9
n15:organizacniJednotka
43210