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Immobilization of enzyme biocatalyst on natural halloysite nanotubes

Paper ID Volume ID Publish Year Pages File Format Full-Text
50822 46817 2010 5 PDF Available
Title
Immobilization of enzyme biocatalyst on natural halloysite nanotubes
Abstract

In this study, we use natural halloysite nanotubes as novel support materials to immobilize enzymes. Two typical industrial enzymes (α-amylase and urease) with different sizes were immobilized in channels of the nanotubes through simple physical adsorption. After 60 min heating, both immobilized enzymes retained more than 80% activity. Stored for 15 days, the immobilized enzymes still showed more than 90% activity. More than 55% initial activity of the enzyme was retained after 7 cycles. The immobilized enzymes exhibited thermal stability, good storage stability and reusability, which indicate that halloysite is a promising support material for enzyme immobilization.

Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights►Using natural halloysite nanotube as novel support materials for immobilization of enzymes. ►Two typical enzymes were immobilized on the nanotubes through simple physical adsorption. ►Immobilized enzymes retain a high fraction of their native activity. ►Low cost, the improved stability and reusability render halloysite potential support materials.

Keywords
Halloysite nanotube; Biocatalyst; Immobilized enzyme; Enzyme activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 4, 15 December 2010, Pages 259–263
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us