Hydrocalumite Thin Films for Polyphenol Biosensor Elaboration
SOUSSOU, A.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire de Microélectronique et Instrumentations [Monastir]
Nanobioengineering Group [Sidi-Thabet]
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Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire de Microélectronique et Instrumentations [Monastir]
Nanobioengineering Group [Sidi-Thabet]
SOUSSOU, A.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire de Microélectronique et Instrumentations [Monastir]
Nanobioengineering Group [Sidi-Thabet]
< Reduce
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Laboratoire de Microélectronique et Instrumentations [Monastir]
Nanobioengineering Group [Sidi-Thabet]
Language
en
Article de revue
This item was published in
IEEE Transactions on NanoBioscience. 2017-12-08, vol. 16, n° 8, p. 650 - 655
Institute of Electrical and Electronics Engineers
English Abstract
—Hybrid thin films based on Hydrocalu-mite (Ca 2 AlCl layered double hydroxide LDH) and tyrosinaseenzyme have been used for the elaboration of a high sensitive amperometric biosensor detecting polyphenols extracted from ...Read more >
—Hybrid thin films based on Hydrocalu-mite (Ca 2 AlCl layered double hydroxide LDH) and tyrosinaseenzyme have been used for the elaboration of a high sensitive amperometric biosensor detecting polyphenols extracted from green tea. Structural properties of LDH nanomaterials were characterized by X-ray powder diffraction and Infra-Red spectroscopy, confirming its crystalline phase and chemical composition. Ca 2 AlCl-LDHs-thin films were deposited by spin-coating, and studied by atomic force microscopy to obtain information about the surface morphology of this host matrix before and after enzyme's immobilization. Electrochemical study using cyclic voltammetry and chronoamperometry shows good performances of the built-in biosensor with a high sensitivity for polyphenols concentrations ranging from 24 pM to 2.4 µM and a limit of detection of 1.2 pM. Index Terms—Amperometric biosensor, layered double hydroxide, tyrosinase, hybrid nanomaterial, atomic force microscopy.Read less <
English Keywords
tyrosinase
hybrid nanomaterial
layered double hydroxide
Amperometric biosensor
atomic force microscopy
Origin
Hal imported