Amperometric Polyphenol Biosensor Based on Tyrosinase Immobilization on CoAl Layered Double Hydroxide Thins Films
SOUSSOU, A.
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
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Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
SOUSSOU, A.
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
< Réduire
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Langue
en
Article de revue
Ce document a été publié dans
Procedia Engineering. 2016, vol. 168, p. 1131-1134
Elsevier
Résumé en anglais
An amperometric biosensor based on tyrosinase immobilized on the sensor surface has been used for the detection of polyphenols extracted from green tea. The immobilization was ensured by the crosslinking method on thins ...Lire la suite >
An amperometric biosensor based on tyrosinase immobilized on the sensor surface has been used for the detection of polyphenols extracted from green tea. The immobilization was ensured by the crosslinking method on thins films of CoAlSO 4 layered double hydroxide recovering screen-printed gold electrodes. Electrochemical measurements show that this biosensor is able to detect tea polyphenols by following the reduction of compounds enzymatically generated. Its response is linear in the concentration range of [0-2,4 µM] with high sensitivity and stability, since it retains 90% of its original response after 20 days.< Réduire
Mots clés en anglais
amperometric biosensor
layered double hydroxide
tyrosinase
atomic force microscopy
Origine
Importé de halUnités de recherche