A WSe2@poly(3,4-ethylenedioxythiophene) nanocomposite-based electrochemical sensor for simultaneous detection of dopamine and uric acid

Journal of Electrochemical Science and Engineering

article

Yasin Tangal¹  Deniz Coban²  Sadik Cogal³ 

[1] Burdur Mehmet Akif Ersoy University, The Graduate School of Natural and Applied Sciences, Department of Chemistry;Burdur Mehmet Akif Ersoy University, The Graduate School of Natural and Applied Sciences, Department of Material Technology Engineering;Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Department of Chemistry

关键词: Tungsten diselenide;    modified electrode;    conducting polymer;    selective sensing;    biological compounds;   

DOI  :  10.5599/jese.1375

学科分类：内科医学

来源: International Association of Physical Chemists (IAPC)

【 摘 要 】

In the present work, a nanocomposite of two-dimensional WSe2 nanosheets with poly-(3,4‑ethylenedioxythiophene (WSe2@PEDOT) was prepared by facile hydrothermal method and characterized in terms of structural and morphological analyses. This nano­composite was used to modify glassy carbon electrode for the construction of an electrochemical sen­sing platform for simultaneous determination of dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA). It was found that the incorporation of PEDOT into WSe2 nano­sheets exhibited enhanced electrochemical behaviors and electro¬catalytic activity against DA and UA. Using differential pulse voltammetry (DPV) measurements, the WSe2@PEDOT modified electrode displayed wide linear detection ranges of 16 to 466 µM for DA and 20 to 582.5 µM for UA. The electrode also exhibited high selectivity against DA and UA in the presence of major interference of ascorbic acid and other interferent substances.

【 授权许可】

CC BY