Signal amplification of streptavidin–horseradish peroxidase functionalized carbon nanotubes for amperometric detection of attomolar DNA

• DOI: 10.1039/c1cc10840a
• Publication Date: 2011-04-02T13:30:23Z
• Authors: Wenchao Gao; Haifeng Dong; Jianping Lei; Hanxu Ji; Huangxian Ju
• Keywords: Horseradish peroxidase; Streptavidin; Amperometry; Linear range

A novel biosensing strategy for selective electrochemical detection of DNA down to the attomolar level with a linear range 5 orders magnitude was developed by specific recognitions target and streptavidin biotin labelled molecular beacon signal amplification streptavidin–horseradish peroxidase functionalized carbon nanotubes.