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Catalase encapsulated in mesoporous silica and its performance

Paper ID Volume ID Publish Year Pages File Format Full-Text
4265 218 2009 7 PDF Available
Title
Catalase encapsulated in mesoporous silica and its performance
Abstract

Catalase was confined in a nanospace of about 7 nm in diameter in mesoporous silica (FSM; folded-sheet mesoporous material), forming a catalase-FSM conjugate. That the enzyme was encapsulated in the pores of mesoporous materials was proven by the direct visualization technique. The catalase-FSM showed not only an activity similar to that of the native catalase in the decomposition of H2O2 but also much higher stability: specifically, the catalase immobilized in FSM still retained its original activity after being applied 50 times to the decomposition, whereas the native lost its activity after 20 times recycling. Furthermore, the catalase-FSM showed catalase activity even in an organic media in which the native catalase had almost no catalytic activity.

Keywords
Catalase; Mesoporous silica
First Page Preview
Catalase encapsulated in mesoporous silica and its performance
Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 44, Issues 2–3, 15 May 2009, Pages 167–173
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering