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Synthesis of enzymatically-gellable carboxymethylcellulose for biomedical applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
22150 43257 2007 4 PDF Available
Title
Synthesis of enzymatically-gellable carboxymethylcellulose for biomedical applications
Abstract

We synthesized a carboxymethylcellulose with phenol moieties by covalently incorporating tyramine into carboxymethylcellulose using aqueous-phase carbodiimide activation chemistry. The resulting hydrogel was obtained from an aqueous solution of the conjugate via the horseradish peroxidase-catalyzed oxidation reaction of phenols by consuming H2O2, where the gelation speed depended on the concentrations of enzyme and H2O2. The viability of the mammalian cells enclosed within the hydrogel prepared from 1.5% (w/v) conjugate solution containing 5 units/ml horseradish peroxidase and 1 mM H2O2, was 80% after 24 h. These results demonstrate that this carboxymethylcellulose with phenol moieties has potential for biomedical applications including tissue-engineering.

Keywords
carboxymethylcellulose; peroxidase; biomaterial; gelation; tyramine
First Page Preview
Synthesis of enzymatically-gellable carboxymethylcellulose for biomedical applications
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 104, Issue 1, July 2007, Pages 30–33
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering