The use of polymer/carbon based material as an efficient and low‑cost electrochemical sensor for rapid electrochemical detection of dopamine

서지정보

· 발행기관 : 한국탄소학회
· 수록지 정보 : Carbon letters / 33권 / 7호
· 저자명 : Merve Akin, Ramazan Bayat, Muhammed Bekmezci, Zeynep Kazel Coguplugil, Fatih Sen, Mehdi Baghayeri, Afsaneh Kaffash, Fatemah Tehranejad‑Javazmi, Iran Sheikhshoaie

목차

The use of polymercarbon based material as an efficient and low-cost electrochemical sensor for rapid electrochemical detection of dopamine
Abstract
1 Introduction
2 Material and methods
2.1 Chemicals
2.2 GO synthesis and rGO synthesis
2.3 Preparation of rGOPPy particles
3 rGOPPy particles modified electrode preparation
4 Results and discussion
4.1 Characterization of rGOPPy particles
4.2 Detection of Dopamine
4.3 Effect of scan rate
4.4 rGOPPy electrochemical sensor for detection of DA Molecule
4.5 Comparison with reported analytical procedures
5 Conclusion
Anchor 16
Acknowledgements
References

영어초록

In this research, reduced graphene oxide/polypyrrole (rGO/PPy) particles were synthesized and used to measure the amount of dopamine (DA) electrochemically. The obtained rGO/PPy particle was characterized by Fourier Transform Infrared Spectrophotometer (FTIR), UV–Visible Spectrophotometer (UV–Vis), and X-Ray Diffraction Diffractometry (XRD). To investigate the DA sensor performance, cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were used to acquire electrochemical measurements of the sensor. Current values of 1.65 and 5.9 mA were observed in the CV at 0.2 mM and 1.2 mM concentrations of target molecule, respectively. Under optimized conditions, the linear calibration plots were found to exhibit significant sensitivity in the linear range of 0.2 and 1.2 mM, with a corresponding detection limit of 0.061 μM for DA. The results obtained were similar to the sensor results of DA made using precious metals. This work was a demonstration of the feasibility of high-sensitivity electrochemical analysis with conductive carbon materials without the use of precious metals. It was also observed that the cost-effective rGO/PPy exhibited a very high potential for DA detection.

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