Abstract
The electrochemical activity of the glutathione (GSH) at the graphite electrodes modified with gold nanoparticles (AuNP-GCE) is formed under the ratio of reactants and in solutions of supporting electrolytes of 0, 1 M NaOH, 0,1 "phosphate buffer (pH 6.86), 0,1 M HCl, 0,1 M NaClO4 is studied by the method of cyclic voltammetry. The dependence of the electrochemical activity of GSH on ratio of reagents HAuCl4:Na3C6H5O7:NaBH4, used to the preparation of sols, and the modification time of the GE surface with gold nanoparticles have been studied. The "inverse" cathodic peak of GSH at AuNPGCE formed in the reaction mixture HAuCl4:Na3C6H5O7:NaBH4= 1:1:4 is observed on the cathodic branch of cyclic voltammogram at Ec = 0.05 V in 0.1 M NaOH. The mechanism of electrochemical oxidation of the GSH on the surface of AuNP-GCE in 0.1 M NaOH is proposed.
| Original language | English |
|---|---|
| Pages (from-to) | 834-844 |
| Number of pages | 11 |
| Journal | Oriental Journal of Chemistry |
| Volume | 31 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 |
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Keywords
- Cyclic voltammetry
- Glutathione
- Gold nanoparticles
- Graphite electrode
ASJC Scopus subject areas
- Chemistry(all)
- Biochemistry
- Environmental Chemistry
- Drug Discovery
Cite this
Electrochemical activity of glutathione at a graphite electrode modified with gold nanoparticles. / Perevezentseva, D. O.; Skirdin, K. V.; Gorchakov, E. V.; Bimatov, V. I.
In: Oriental Journal of Chemistry, Vol. 31, No. 2, 2015, p. 834-844.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrochemical activity of glutathione at a graphite electrode modified with gold nanoparticles
AU - Perevezentseva, D. O.
AU - Skirdin, K. V.
AU - Gorchakov, E. V.
AU - Bimatov, V. I.
PY - 2015
Y1 - 2015
N2 - The electrochemical activity of the glutathione (GSH) at the graphite electrodes modified with gold nanoparticles (AuNP-GCE) is formed under the ratio of reactants and in solutions of supporting electrolytes of 0, 1 M NaOH, 0,1 "phosphate buffer (pH 6.86), 0,1 M HCl, 0,1 M NaClO4 is studied by the method of cyclic voltammetry. The dependence of the electrochemical activity of GSH on ratio of reagents HAuCl4:Na3C6H5O7:NaBH4, used to the preparation of sols, and the modification time of the GE surface with gold nanoparticles have been studied. The "inverse" cathodic peak of GSH at AuNPGCE formed in the reaction mixture HAuCl4:Na3C6H5O7:NaBH4= 1:1:4 is observed on the cathodic branch of cyclic voltammogram at Ec = 0.05 V in 0.1 M NaOH. The mechanism of electrochemical oxidation of the GSH on the surface of AuNP-GCE in 0.1 M NaOH is proposed.
AB - The electrochemical activity of the glutathione (GSH) at the graphite electrodes modified with gold nanoparticles (AuNP-GCE) is formed under the ratio of reactants and in solutions of supporting electrolytes of 0, 1 M NaOH, 0,1 "phosphate buffer (pH 6.86), 0,1 M HCl, 0,1 M NaClO4 is studied by the method of cyclic voltammetry. The dependence of the electrochemical activity of GSH on ratio of reagents HAuCl4:Na3C6H5O7:NaBH4, used to the preparation of sols, and the modification time of the GE surface with gold nanoparticles have been studied. The "inverse" cathodic peak of GSH at AuNPGCE formed in the reaction mixture HAuCl4:Na3C6H5O7:NaBH4= 1:1:4 is observed on the cathodic branch of cyclic voltammogram at Ec = 0.05 V in 0.1 M NaOH. The mechanism of electrochemical oxidation of the GSH on the surface of AuNP-GCE in 0.1 M NaOH is proposed.
KW - Cyclic voltammetry
KW - Glutathione
KW - Gold nanoparticles
KW - Graphite electrode
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UR - http://www.scopus.com/inward/citedby.url?scp=84944449148&partnerID=8YFLogxK
U2 - 10.13005/ojc/310226
DO - 10.13005/ojc/310226
M3 - Article
VL - 31
SP - 834
EP - 844
JO - Oriental Journal of Chemistry
JF - Oriental Journal of Chemistry
SN - 0970-020X
IS - 2
ER -