Abstract
π-conducting materials such as chiral polythiophenes exhibit excellent electrochemical stability in doped and undoped states on electrode surfaces (chiral electrodes), which help tune their physical and electronic properties for a wide range of uses. To overcome the limitations of traditional surface immobilization methods, an alternative pathway for the detection of organic and bioorganic targets using chiral electrodes has been developed. Moreover, chiral electrodes have the ability to carry functionalities, which helps the immobilization and recognition of bioorganic molecules. In this review, we describe the use of polythiophenes for the design of chiral electrodes and their applications as electrochemical biosensors.
Highlights
Abstract: π-conducting materials such as chiral polythiophenes exhibit excellent electrochemical stability in doped and undoped states on electrode surfaces, which help tune their physical and electronic properties for a wide range of uses
100 cyclic voltammetry (CV) scans confirming the excellent stability of the chiral electrode, which is the key step in the successful detection of organic and bioorganic molecules
Chirality has been introduced on conducting polythiophene backbones by electropolymerization of chiral precursors
Summary
Π-conducting materials have emerged as excellent tools for detection of organic and bioorganic molecules, due to their stability and reversible electroactive responses [1,2,3,4]. Several chiral-polypyrrole modified electrodes have prepared by electropolymerization either of chiral pyrrole monomers [21,22,23] or pyrrole derivatives in the presence of Electrochem 2021, 2, 677–688. Similar strategies have been employed for the preparation of high hibit excellent stability at both states, reversible electrochemical responses, chiral-polyaniline modified electrodes [28,29,30]. Polythiophenes are one important class of conjugated conducting materials that exhibit Chiral electrodes based on polythiophenes be prepared by electropoly excellent stability at both states, reversible electrochemical can responses, high conductivity and their precursors is well established tionthe ofchemistry (i) eitherofthiophene monomers bearing [31,32,33,34]. Tives their applications as electrochemical biosensors for the detection of b cules in the last decade
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