期刊
ELECTROANALYSIS
卷 28, 期 6, 页码 1391-1400出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201501080
关键词
dicarboxylic acids; voltammetric sensor; carbon black; pillar[5]arene; DNA sensing
资金
- Russian Science Foundation [14-13-00058]
- Russian Science Foundation [14-13-00058] Funding Source: Russian Science Foundation
Electrochemical sensor has been proposed on the base of glassy carbon electrode (GCE) modified with carbon black (CB) and pillar[5]arene (P[5]A). The characteristics of the peak currents were found to be sensitive to the incubation of the sensor in organic acid and DNA solution. The detection of nx(10(-8)-10(-5))M of organic acid and down to (1-5)x10(-18)g of DNA was attributed to the effect of the analytes on the aggregation and relative stability of oxidized and reduced forms of P[5]A. No signal interference with the alkali and alkali-earth metal ions was found. The electrochemical sensor was tested in the detection of specific DNA interactions, i.e. reactive oxygen species damage and intercalating pharmaceuticals detection.
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