A novel carbon nanotube-modified biosensor containing a dsDNA-Ni(II) complex membrane, and its use for electro-catalytic oxidation of methanol in alkaline medium
作者： Yong Liu , Wanzhi Wei , Xiurong Zhai , Jinxiang Zeng
DOI: 10.1007/S00604-007-0757-4
关键词:
摘要: A novel biosensor was fabricated by using a DNA-Ni(II)/MWNTs/Chitosan complex membrane, and the synergistic electrocatalytic effect of membrane for electro-oxidation methanol observed. The composed DNA, MWNTs chitosan functioned as support matrix immobilization nickel cation. good activity resulting DNA-Ni(II)/MWNTs/chitosan/GC electrode demonstrated in alkaline medium. linear range from 0.2 to 5.0 mM detection medium observed with rapid response (within 3 s) limit 10 µM based on signal-to-noise ratio 3. In addition, sensor exhibited stability.
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