| Autor: |
R. Nurzulaikha, H.N. Lim, I. Harrison, S.S. Lim, A. Pandikumar, N.M. Huang, S.P. Lim, G.S.H. Thien, N. Yusoff, I. Ibrahim |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Sensing and Bio-Sensing Research, Vol 5, Iss , Pp 42-49 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
2214-1804 |
| DOI: |
10.1016/j.sbsr.2015.06.002 |
| Popis: |
A graphene-tin oxide (G-SnO2) nanocomposite was prepared via a facile hydrothermal route using graphene oxide and Sn precursor solution without addition of any surfactant. The hydrothermally synthesized G-SnO2 nanocomposite was characterized using a field emission scanning electron microscope (FESEM), high resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). A homogeneous deposition of SnO2 nanoparticles with an average particle size of 10 nm on the graphene was observed in the FESEM and HRTEM images. The G-SnO2 nanocomposite was used to fabricate a modified electrode for the electrochemical detection of dopamine (DA) in the presence of ascorbic acid (AA). Differential pulse voltammetry (DPV) showed a limit of detection (LoD) of 1 μM (S/N = 3) in the presence of ascorbic acid (AA). Keywords: Graphene, Tin oxide, Nanocomposite, Electrochemical sensor, Biosensor, Dopamine |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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