Studies of Fe3O4-chitosan nanoparticles prepared by co-precipitation under the magnetic field for lipase immobilization

被引：127

作者：

Liu, Yong ^{[1
]}

Jia, Shaoyi ^{[1
]}

Wu, Qian ^{[1
]}

Ran, Jingyu ^{[1
]}

Zhang, Wei ^{[1
]}

Wu, Songhai ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 08期

关键词：

Lipase; Fe3O4-chitosan nanoparticles; Co-precipitation; Magnetic field; Immobilization; IRON-OXIDE NANOPARTICLES; CANDIDA-RUGOSA LIPASE; BIOMEDICAL APPLICATIONS; PERFORMANCE; BIODIESEL; GROWTH; OIL;

D O I：

10.1016/j.catcom.2010.12.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple method was introduced to prepare magnetic Fe3O4-chitosan nanoparticles by co-precipitation with 0.45 T static magnetic field via glutaraldehyde cross-linking reaction, and the nanoparticles were used to immobilize lipase. The influence of magnetic field on the properties of magnetic nanoparticles was studied by SEM, XRD and VSM. The results showed that no obvious difference of the nanoparticles structure was found, while the morphology varied from random sphere-like to rod-like and magnetic character was significantly changed. Furthermore, the lipase immobilized with nanoparticles prepared under the magnetic field enhanced the activity, operational and storage stability compared with the control sample. Crown Copyright (c) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：717 / 720

页数：4

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