Graphene electrode platform for impedimetric aptasensing
Aceta, Yara (Universitat Autònoma de Barcelona. Departament de Química)
Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)

Date:	2017
Abstract:	In this study, we synthesized graphene oxide (GO) at different oxidation times (30, 60 and 120 min) using a modified Hummer's method and investigated their carbon-to-oxygen (C/O) ratios, the % C-C double bond, the diffraction pattern, their topography and their electrochemical behaviour both by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). All GOs synthesized were compared with a GO from commercial source. Graphite-epoxy composite (GEC) electrodes fabricated in our laboratory were modified with GO and electrochemically reduced graphene oxide (ERGO) in preliminary assays to elucidate its applicability for enhanced DNA aptamer biosensing applications.
Grants:	Ministerio de Economía y Competitividad CTQ2013-41577-P
Note:	Altres ajuts: Manel del Valle thanks the support from program ICREA Academia.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Graphene oxide ; Electrochemically reduced graphene oxide ; Impedance ; Biosensing ; Aptasensor ; Thrombin
Published in:	Electrochimica acta, Vol. 229 (March 2017) , p. 458-466, ISSN 1873-3859

DOI: 10.1016/j.electacta.2017.01.113

Preprint 32 p, 1.7 MB

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