Improved Electroactivity of Redox Probes onto Electropolymerized Azidomethyl-PEDOT: Enabling Click Chemistry for Advanced (Bio)Sensorsстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 апреля 2021 г.
Аннотация:We report on improved electroactivity of redox probes onto chloromethyl- and azidomethyl-substituted poly(3,4-ethylenedioxythiophene) in terms of up to a 2000-fold increased electron transfer rate. Modification of screen-printed carbon with the polymers provides a reversible electrochemical behavior of both cationic and anionic redox couples. The consequent increase in voltammetric response toward [Fe(CN)6]3–/4– couple in a neutral medium stipulates 200 times enhanced sensitivity to its structural analog Prussian blue-based nanozymes “artificial peroxidase”. We believe, the combination of azide functionality enabling a versatile click chemistry with advanced electroactivity onto elaborated interfaces demonstrated in this paper is revolutionary for electrochemical (bio)sensing.