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Lipase Immobilized within Novel Silica-based Hybrid Foams: Synthesis, Characterizations and Catalytic Properties

Published online by Cambridge University Press:  01 February 2011

Nicolas Brun
Affiliation:
[email protected], Centre de Recherche Paul Pascal, Pessac, France
Annick Babeau
Affiliation:
[email protected], Centre de Recherche Paul Pascal, Pessac, France
Victor Oestreicher
Affiliation:
[email protected], Centre de Recherche Paul Pascal, Pessac, France
Hervé Deleuze
Affiliation:
[email protected], Institut des Sciences Moléculaires, Talence, France
Clément Sanchez
Affiliation:
[email protected], Laboratoire de Chimie de la Matière Condensée de Paris, Paris, France
Rénal Backov
Affiliation:
[email protected], Centre de Recherche Paul Pascal, Pessac, France
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Abstract

The covalent immobilization of crude lipases within silica-based macroporous frameworks have been performed by combining sol-gel process, concentrated direct emulsion, lyotropic mesophase and post-synthesis functionalizations. The as-synthesized open cell hybrid monoliths exhibit high macroscopic porosity, around 90 %, providing interconnected scaffold while reducing the diffusion low kinetic issue. The entrapment of enzymes in such foams deals with a high stability over esterification and transesterification batch process catalysis.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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