Preparation and application of polymer-grafted magnetic nanoparticles for lipase immobilization

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	Preparation and application of polymer-grafted magnetic nanoparticles for lipase immobilization
	Xia CG(夏春谷)
刊名	Journal of Magnetism and Magnetic Materials
	2008
卷号	320 页码:2350-2355
关键词	Fe3O4 nanoparticle Polymerization Functionalized Immobilized lipase
ISSN号	0304-8853
通讯作者	李彦峰
中文摘要	Functionalized superparamagnetic particles were prepared by graft polymerization of glycidyl methacrylate and methacryloxyethyl trimethyl ammonium chloride onto the surface of modified-Fe3O4 nanoparticles. The resultant particles were characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and vibrating sample magnetometry. The results indicate that the polymer chains had been effectively grafted onto the surface of Fe3O4 nanoparticles. The functionalized particles remained dispersive and superparamagnetic. Lipase was immobilized on the magnetic particles under mild conditions by electrostatic adsorption and covalent binding with the activity recovery up to 70.4%. The immobilized lipase had better thermal stability compared to free lipase.
学科主题	物理化学
收录类别	SCI
资助信息	the State Key Laboratory for Oxo Synthesis and Selective Oxidation Open Foundation (OSSO0602)
语种	英语
WOS记录号	WOS:000257205900011
公开日期	2012-11-09
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/1876]
专题	兰州化学物理研究所_OSSO国家重点实验室
推荐引用方式 GB/T 7714	Xia CG. Preparation and application of polymer-grafted magnetic nanoparticles for lipase immobilization[J]. Journal of Magnetism and Magnetic Materials,2008,320:2350-2355.
APA	夏春谷.(2008).Preparation and application of polymer-grafted magnetic nanoparticles for lipase immobilization.Journal of Magnetism and Magnetic Materials,320,2350-2355.
MLA	夏春谷."Preparation and application of polymer-grafted magnetic nanoparticles for lipase immobilization".Journal of Magnetism and Magnetic Materials 320(2008):2350-2355.