Target DNA recognition using electrochemical impedance spectroscopy

Electrochemical impedance spectroscopy was used to differentiate between different target DNA sequences without the use of a redox label or application of large bias voltages. This method relies on the formation of a mixed self-assembled monolayer (SAMs) composed of single-stranded DNA and a diluent...

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Bibliographic Details
Main Authors: Michaels, P., Ciampi, Simone, Yean, C., Gooding, J.
Format: Conference Paper
Published: 2010
Online Access:http://hdl.handle.net/20.500.11937/12630
Description
Summary:Electrochemical impedance spectroscopy was used to differentiate between different target DNA sequences without the use of a redox label or application of large bias voltages. This method relies on the formation of a mixed self-assembled monolayer (SAMs) composed of single-stranded DNA and a diluent, mercaptoethanol. Recognition of the DNA analytes was achieved through the significant increase in conductance for the double stranded DNA, as compared to single-stranded DNA. Non-complementary and single base-pair mismatches were also able to be differentiated. © 2010 IEEE.