Efficient Immobilization of Tyrosinase Enzyme on Layered Double Hydroxide Hybrid Nanomaterials for Electrochemical Detection of Polyphenols
SOUSSOU, Asma
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire de Microélectronique et Instrumentations [Monastir]
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Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire de Microélectronique et Instrumentations [Monastir]
SOUSSOU, Asma
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire de Microélectronique et Instrumentations [Monastir]
< Reduce
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut National de Recherche et d'Analyse Physico-Chimique [INRAP]
Laboratoire de Microélectronique et Instrumentations [Monastir]
Language
en
Article de revue
This item was published in
IEEE Sensors Journal. 2017, vol. 17, n° 4, p. 4340-4348
Institute of Electrical and Electronics Engineers
English Abstract
Gold screen-printed electrodes coated with thin films of layered double hydroxides containing cobalt and aluminium (Co 1.57 Al(OH) x SO 4 , shortened as CoAl) have been investigated for the design of an electrochemical ...Read more >
Gold screen-printed electrodes coated with thin films of layered double hydroxides containing cobalt and aluminium (Co 1.57 Al(OH) x SO 4 , shortened as CoAl) have been investigated for the design of an electrochemical tyrosinase-based biosensor used for the detection of a complex mixture of polyphenols extracted from green tea. Physicochemical analyses show that the resulted biosensor exhibits very attractive characteristics: a high sensitivity, a large dynamic range (up to 1000 ng.mL −1), and very low limits of detection (0.33 pg.mL −1 and 0.03 pg.mL −1 for oxidation and reduction, respectively).Read less <
English Keywords
Atomic force microscopy AFM
Electrochemical biosensors
Layered double hydroxide LDH
Polyphenols
Tyrosinase
Origin
Hal imported