Quinone-Based Polymers for Label-Free and Reagentless Electrochemical Immunosensors: Application to Proteins, Antibodies and Pesticides Detection

Biosensors

Benoit Piro¹  Steeve Reisberg¹  Guillaume Anquetin¹  Huynh-Thien Duc² 

[1] Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France; E-Mails:;Université Paris XI, INSERM U-1014, Groupe Hospitalier Paul Brousse-94800 Villejuif, France; E-Mail:

关键词: conducting polymer;    square wave voltammetry;    impedance spectroscopy;    immunosensor;    proteins;    peptides;    pollutants;    electrochemical biosensor;    label-free detection;   

DOI  :  10.3390/bios3010058

来源: mdpi

【 摘 要 】

Polyquinone derivatives are widely recognized in the literature for their remarkable properties, their biocompatibility, simple synthesis, and easy bio-functionalization. We have shown that polyquinones present very stable electroactivity in neutral aqueous medium within the cathodic potential domain avoiding side oxidation of interfering species. Besides, they can act as immobilized redox transducers for probing biomolecular interactions in sensors. Our group has been working on devices based on such modified electrodes with a view to applications for proteins, antibodies and organic pollutants using a reagentless label-free electrochemical immunosensor format. Herein, these developments are briefly reviewed and put into perspective.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.