期刊
MICROCHIMICA ACTA
卷 183, 期 8, 页码 2369-2375出版社
SPRINGER WIEN
DOI: 10.1007/s00604-016-1878-4
关键词
Nanomaterial; Nafion; Cuprous oxide; Electrochemical sensor; Glassy carbon electrode; Electrooxidation; Cyclic voltammetry
资金
- Ministry of Science and Technology of China [2013YQ170585]
An electrochemical non-enzymatic glucose sensor based on copper nanorods (CuNRs) was developed. The CuNRs were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction spectroscopy, and X-ray photoelectron spectroscopy. The results display a layer of rough cuprous oxide that is formed on the surface of CuNRs. The CuNR- modified glassy carbon electrode exhibits an outstanding capability in terms of nonenzymatic sensing of glucose. The sensor displays high sensitivity (1490 mu AaEuro cent mM(-1)aEuro cent cm(-2)), fast response time (less than 5 s), a low detection limit of 8 nM (S/N = 3), long term stability, and excellent anti-fouling ability. The sensor was applied to the detection of glucose in (spiked) human serum and in black ice tea, with relative standard deviations (for n = 6) of 1.7 % and 1.9 %, respectively.
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