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]
< Reduce
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Language
en
Article de revue
This item was published in
Procedia Engineering. 2016, vol. 168, p. 1131-1134
Elsevier
English Abstract
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 ...Read more >
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.Read less <
English Keywords
amperometric biosensor
layered double hydroxide
tyrosinase
atomic force microscopy
Origin
Hal imported