Ü. Demir’s research while affiliated with Gebze Technical University and other places

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Publications (1)


ZnO Nanosheets-Decorated ERGO Layers: An Efficient Electrochemical Sensor for Non-Enzymatic Uric Acid Detection
  • Article

March 2022

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32 Reads

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26 Citations

IEEE Sensors Journal

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Ü. Demir

Electrochemically reduced graphene oxide/zinc oxide (ERGO/ZnO) nanocomposite was simultaneously co-electrodeposited based on a one-step electrodeposition approach at room temperature on an indium tin oxide (ITO) electrode from an aqueous solution without using specific reducing agents. The electrochemical fabricated ITO-ERGO/ZnO electrode was characterized using field emission scanning electron microscopy (FESEM), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and electrochemical impedance spectroscopy (EIS) techniques. The biosensor properties of the ITO-ERGO/ZnO electrodes were investigated in terms of their response toward uric acid (UA) sensing via enzyme-free amperometry. The linear current response for UA on the ITO-ERGO/ZnO electrode in the concentration range of 1400μM1- 400\,\,\mu \text{M} with a sensitivity of 150.7 μA150.7 ~\mu \text{A} cm −2 mM −1 was obtained. The main advantage of the ITO-ERGO/ZnO electrode was a relatively low detection limit for estimating UA, high selectivity, good repeatability, and long-term stability. In addition, the fabrication procedure of the designed biosensor was straightforward, practicable, and inexpensive.

Citations (1)


... µM [25][26][27] for dopamine and glucose, respectively. Notably, fruitful results have also been obtained in utilizing electrochemical detection for UA research [28][29][30][31][32]. ...

Reference:

Polypyrrole/α-Fe2O3 Hybrids for Enhanced Electrochemical Sensing Performance towards Uric Acid
ZnO Nanosheets-Decorated ERGO Layers: An Efficient Electrochemical Sensor for Non-Enzymatic Uric Acid Detection
  • Citing Article
  • March 2022

IEEE Sensors Journal