Electrochemical Aptasensors Based on Target-Induced Aptamer Displacement

9 Electrochemical Aptasensors Based on Target-Induced Aptamer Displacement 

This type of biosensor took advantage of the strong affinity of the aptamer for its specific analyte and used a competition scheme as the detection methodology [6]. 

This approach has been adopted for the development of biosensors for the detection of different targets and some examples will be presented here. 

Faradic impedance spectroscopy (FIS) was the electrochemical technique used in an aptasensor for the detection of lysozyme [48]. The duplex formed by the lysozyme aptamer and a partial 

VW Tlirombin-Binding A] lamer W A ptamer-CompIcmcntary DN A io Thrombin 

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Electrochemical aptasensors based on target-induced aptamer displacement... 

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