Noncovalently copper-porphyrin functionalized reduced graphene oxide for sensitive electrochemical detection of dopamine
| Autor: | Hui-Qing Yuan, Jian Wang, Hui-Shi Guo, Dong-Lan Huang, Hao Zhang, Hai-Yang Liu, Xiao Ying |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
Graphene Inorganic chemistry Grapheme Oxide chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Copper Porphyrin 0104 chemical sciences Electrochemical gas sensor law.invention chemistry.chemical_compound chemistry law Dopamine medicine 0210 nano-technology medicine.drug |
| Zdroj: | Journal of Porphyrins and Phthalocyanines. 22:853-862 |
| ISSN: | 1099-1409 1088-4246 |
| DOI: | 10.1142/s1088424618500761 |
| Popis: | The nanocomposite of an electron-deficient flat tetrakis-(ethoxycarbonyl) porphyrin copper(II) (Cu-TECP) and reduced grapheme oxide (RGO) was prepared and used for electrochemical detection of dopamine (DA). The prepared nanocomposite was characterized by scanning electron microscopy, Raman spectroscopy, FT-IR spectroscopy, ultraviolet-visible spectroscopy and electrochemical impedance spectroscopy. Electrochemical studies of the modified glass carbon electrode (GCE) were carried out by the cyclic voltammetry and differential pulse voltammograms (DPV) methods. The RGO/Cu-TECP/GCE exhibited enhanced electrocatalytic activity towards the detection of dopamine (DA). The detection limit was 0.58 μM, while the linear range was from 2 to 200 μM ([Formula: see text] 0.997). |
| Databáze: | OpenAIRE |
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