Abstract
The electrochemical behavior of cysteine at a graphite electrodes modified with gold nanoparticles was studied by cyclic voltammetry. We compared the results of determination of cysteine in the particulate, graphite and glasgraphite electrodes modified with gold nanoparticles and single crystals of gold. Specific feature of the electrooxidation of cystein at a graphite electrodes modified with gold nanoparticles and at a graphite electrodes modified from solution HAuCl4. It was found that graphite electrodes modified with gold nanoparticles have more electrocatalytic activity toward the oxidation of cysteine than single crystals of gold due to the increase in the number of atoms on the surface of the graphite electrode in comparison with single crystals of gold, which catalyze the oxidation process of cystein. The use of graphite electrode modified with gold nanoparticles reduces the detection limit for cystein under to 1. 10-12 M. The method for determination of cysteine in biological samples.
| Original language | English |
|---|---|
| Pages (from-to) | 1591-1594 |
| Number of pages | 4 |
| Journal | World Applied Sciences Journal |
| Volume | 29 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- Biological fluid
- Cystein
- Fraction of blood
- Glassgraphite electrode
- Gold nanoparticles
- Gold single crystal
- Graphite electrode
- Particulate electrode
- Voltammetry
ASJC Scopus subject areas
- General
Cite this
Determination of Cystein in biology solids by electrochemical methods with gold colloidal particles. / Gorchakov, Eduard V.; Perevezentseva, Dariya O.; Fedota, Natalya V.; Belyaev, Valeriy A.; Bagamaev, Bagama M.
In: World Applied Sciences Journal, Vol. 29, No. 12, 2014, p. 1591-1594.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Determination of Cystein in biology solids by electrochemical methods with gold colloidal particles
AU - Gorchakov, Eduard V.
AU - Perevezentseva, Dariya O.
AU - Fedota, Natalya V.
AU - Belyaev, Valeriy A.
AU - Bagamaev, Bagama M.
PY - 2014
Y1 - 2014
N2 - The electrochemical behavior of cysteine at a graphite electrodes modified with gold nanoparticles was studied by cyclic voltammetry. We compared the results of determination of cysteine in the particulate, graphite and glasgraphite electrodes modified with gold nanoparticles and single crystals of gold. Specific feature of the electrooxidation of cystein at a graphite electrodes modified with gold nanoparticles and at a graphite electrodes modified from solution HAuCl4. It was found that graphite electrodes modified with gold nanoparticles have more electrocatalytic activity toward the oxidation of cysteine than single crystals of gold due to the increase in the number of atoms on the surface of the graphite electrode in comparison with single crystals of gold, which catalyze the oxidation process of cystein. The use of graphite electrode modified with gold nanoparticles reduces the detection limit for cystein under to 1. 10-12 M. The method for determination of cysteine in biological samples.
AB - The electrochemical behavior of cysteine at a graphite electrodes modified with gold nanoparticles was studied by cyclic voltammetry. We compared the results of determination of cysteine in the particulate, graphite and glasgraphite electrodes modified with gold nanoparticles and single crystals of gold. Specific feature of the electrooxidation of cystein at a graphite electrodes modified with gold nanoparticles and at a graphite electrodes modified from solution HAuCl4. It was found that graphite electrodes modified with gold nanoparticles have more electrocatalytic activity toward the oxidation of cysteine than single crystals of gold due to the increase in the number of atoms on the surface of the graphite electrode in comparison with single crystals of gold, which catalyze the oxidation process of cystein. The use of graphite electrode modified with gold nanoparticles reduces the detection limit for cystein under to 1. 10-12 M. The method for determination of cysteine in biological samples.
KW - Biological fluid
KW - Cystein
KW - Fraction of blood
KW - Glassgraphite electrode
KW - Gold nanoparticles
KW - Gold single crystal
KW - Graphite electrode
KW - Particulate electrode
KW - Voltammetry
UR - http://www.scopus.com/inward/record.url?scp=84893641301&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893641301&partnerID=8YFLogxK
U2 - 10.5829/idosi.wasj.2014.29.12.13989
DO - 10.5829/idosi.wasj.2014.29.12.13989
M3 - Article
AN - SCOPUS:84893641301
VL - 29
SP - 1591
EP - 1594
JO - World Applied Sciences Journal
JF - World Applied Sciences Journal
SN - 1818-4952
IS - 12
ER -