期刊
ELECTROANALYSIS
卷 23, 期 4, 页码 915-920出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201000713
关键词
Graphene; Double-stranded DNA; Electrochemical oxidation; Glassy carbon electrode
资金
- National Natural Science Foundation of China [20805041]
- Training Programme Foundation for Excellent Youth Researching Talents of Fujian's Universities [JA10201]
- Innovation Base Foundation for Graduate Students Education of Fujian Province
The electrochemistry of double-stranded DNA (dsDNA) was investigated on a graphene-modified glassy carbon electrode (GR/GCE). Electrochemical characterization showed that GR on GCE surface significantly enhanced the specific surface area and electrical conductivity of the sensing platform. On GR/GCE, the electrooxidation peak of guanine residues in dsDNA was obviously enhanced and the peak potential was significantly lowered as compared to bare GCE. The electrochemical parameters and influence factors for measurements were investigated. Under the optimal conditions, the peak current linearly increased with dsDNA concentrations in the range from 1 to 500 mu g mL(-1) with a detection limit of 0.35 mu g mL(-1).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据