Aptamer conformational switch as sensitive electrochemical biosensor for potassium ion recognition

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Aptamer conformational switch as sensitive electrochemical biosensor for potassium ion recognition†

Abd-Elgawad Radi*^a and Ciara K. O'Sullivan*^ab

Author affiliations

* Corresponding authors

^a Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, Spain
E-mail: abd.radi@urv.net, ciara.osullivan@urv.net
Fax: +34 977 559667
Tel: +34 977 558740

^b Institució Catalan de Recerca I Estudis Avançats, Passeig Lluís Companys 23, Spain

Abstract

We report the first use of an electrochemical aptasensor for selective potassium recognition, based on a conformational change, affording an electric signal transduced electrochemically by square wave voltammetry or electrochemical impedance spectroscopy.

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Supplementary files

Materials, electrochemical measurements and procedures PDF (29K)

Article information

DOI: https://doi.org/10.1039/B606804A
Article type: Communication
Submitted: 15 May 2006
Accepted: 12 Jun 2006
First published: 06 Jul 2006

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Chem. Commun., 2006, 3432-3434

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