|
|||||
|
|
Structural characteristics and cyclic voltammetric behaviour of Sonogel-Carbon tyrosinase biosensors. A detailed comparative study of three immobilization matrixes |
|
| Authors: | Mohammed ElKaoutit Ignacio Naranjo-Rodríguez Khalid Riffi Temsamani Manuel Domínguez José Luis Hidalgo-Hidalgo-de-Cisneros |
| Affiliation: | (1) Departamento de Química Analítica, Facultad de Ciencias, Universidad de Cádiz, Polígono Rio San Pedro, s/n, Apdo. 40, 11510 Puerto Real, Cadiz, Spain;(2) Departement de Chimie, Equipe de Recherche Electrochimie et Systèmes Interfaciaux, Faculté des Siences de Tétouan, Université Abdelmalek Essaadi, B.P. 2121, M’Hannech II, 93002, Morocco;(3) Departamento de Física de la Materia Condensada, Facultad de Ciencias, Universidad de Cádiz, Apdo. 40, 11510 Puerto Real, Cadiz, Spain |
| Abstract: | Structural characteristics an cyclic voltammetry of three amperommetric biosensors based on immobilization of tyrosinase on a Sonogel-Carbon electrode for detection of phenols are described. Cyclic voltammetry was applied to study the electrochemical behaviour of the electrode and the electrochemical reaction on the electrode surface. Scanning electron microscopy, X-ray energy dispersive spectroscopy and atomic force microscopy were used for the structure characterization of the electrode surface, enzyme film and polymers coatings. The influence of additive-protective polymers, such as polyethylene glycol and perfluorinated-Nafion ion-exchanger on the surface of the biosensor were explored. |
| Keywords: | Biosensor Sonogel-Carbon Tyrosinase Catechol Cyclic voltammetry Scanning electron microscopy Atomic force microscopy X-ray energy dispersive spectroscopy |
| 本文献已被 SpringerLink 等数据库收录！ | |