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Electrochemical DNA sensors and aptasensors based on electropolymerized materials and polyelectrolyte complexes
Authors
Evtugyn G.
Hianik T.
Publication date
1 January 2016
Publisher
Abstract
© 2015 Elsevier B.V. DNA sensors based on oligonucleotides and aptamers immobilized using electropolymerization and layer-by-layer assembling are reviewed. The conditions of electropolymerization and the role of electrosynthesized layers are considered for polyaniline, polypyrrole, polythiophene, polyphenazines and their derivatives with particular attention to immobilization of bioreceptors and signal detection principles. The performance of DNA sensors for hybridization detection and for the determination of low-molecular intercalators and DNA damaging factors is reviewed. Besides, the composition of polyelectrolyte complexes utilizing DNA receptors are considered depending on the analyte nature and functions of polyionic components and auxiliary reagents used for surface layer coatings
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Last time updated on 07/05/2019