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Issue 2, 2015
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Anatase TiO2 based photoelectrochemical sensor for the sensitive determination of dopamine under visible light irradiation

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Abstract

Dopamine (DA), an important neurotransmitter in the central nervous system, is thought to control emotions and the balance of hormones in the human body. A photoelectrochemical sensor based on anatase TiO2 nanoparticles was developed to detect DA under visible light irradiation. The TiO2 nanoparticles were prepared by a previously reported hydrothermal method and the anatase phase was confirmed by X-ray diffraction. Under visible light irradiation, the electrode modified with TiO2 nanoparticles showed a weak photocurrent response in the absence of DA; however, the photocurrent was significantly improved after DA was added to the electrolyte. The proposed photoelectrochemical sensor had a sensitive response to DA with excellent reproducibility, stability and a wide linear range. This sensor may have potential applications in the determination of DA in real samples.

Graphical abstract: Anatase TiO2 based photoelectrochemical sensor for the sensitive determination of dopamine under visible light irradiation

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Publication details

The article was received on 28 Oct 2014, accepted on 02 Dec 2014 and first published on 04 Dec 2014


Article type: Paper
DOI: 10.1039/C4NJ01909A
New J. Chem., 2015,39, 1483-1487

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    Anatase TiO2 based photoelectrochemical sensor for the sensitive determination of dopamine under visible light irradiation

    P. Gao, H. Ma, J. Yang, D. Wu, Y. Zhang, B. Du, D. Fan and Q. Wei, New J. Chem., 2015, 39, 1483
    DOI: 10.1039/C4NJ01909A

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