|Title:||A high-performance fluorescent probe for dopamine detection based on g-C <inf>3</inf> N <inf>4</inf> nanofibers||Authors:||Ding, Yong
Chen, Shen Ming
|Keywords:||Dopamine | Fluorescent probe | g-C N nanofibers 3 4 | Quenching||Issue Date:||5-Apr-2019||Journal Volume:||212||Source:||Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy||Abstract:||
© 2019 Elsevier B.V. A novel fluorescent sensor based on g-C 3 N 4 nanofibers for the sensitive detection of dopamine (DA) has been proposed. We synthesized g-C 3 N 4 nanofibers by directly hydrolyzing bulk g-C 3 N 4 in the alkaline atmosphere (3 M NaOH). The obtained ultrathin g-C 3 N 4 nanofibers were verified by characterizations of Transmission electronic microscope (TEM), X-ray diffractometer (XRD), Fourier transformation-infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). It was found that the fluorescence intensity of g-C 3 N 4 nanofibers was obviously quenched by DA. Fluorescence resonance energy transfer (FRET) between DA and g-C 3 N 4 nanofibers led to the fluorescence reduction of g-C 3 N 4 nanofibers. The fluorescent probe based on g-C 3 N 4 nanofibers exhibits linear responses to the concentration of DA in the range from 0 to 4 μM and 4 to 20 μM, the limit of detection is 17 nM. The fluorescent probe shows excellent stability, good selectivity with its application in serums.
|Appears in Collections:||政治學系|
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