Electrocatalytic Oxidation of Uric Acid and Ascorbic Acid on L-cysteine Monolayer Modified Electrode

Author

Cui, Yanping ; Hong, Jun ; Yang, Changzhu

Author_Institution

Sch. of Environ. Studies, China Univ. of Geosci. (Wuhan), Wuhan, China

Volume

2

fYear

2009

fDate

4-5 July 2009

Firstpage

491

Lastpage

493

Abstract

A three-dimensional L-cysteine (L-cys) monolayer assembled on gold nanoparticles (GNP) providing simultaneous detection of uric acid (UA) and ascorbic acid (AA) was studied in this work. An interestingly results was found during experiments, the L-cys monolayer-modified planar gold electrode presented a block effect on the oxidation of AA, which was facilitated by the three-dimensional L-cys monolayer attributed to its distinct structure.

Keywords

catalysts; electrochemical electrodes; gold; monolayers; nanoparticles; organic compounds; oxidation; self-assembly; surface chemistry; 3D L-cysteine monolayer modified electrode; Au; ascorbic acid; electrocatalytic oxidation; gold nanoparticles; uric acid; Assembly; Chemical analysis; Economic indicators; Electrodes; Geology; Gold; Nanoparticles; Nitrogen; Oxidation; Workstations; Ascorbic acid; L-cysteine; Uric acid; simultaneous determination; three-dimensional monolayer;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3682-8

Type

conf

DOI

10.1109/ESIAT.2009.477

Filename

5199937