Enhancing the Catalytic Activity of Peroxidase by Adsorption onto Fe3O4 Magnetic Nanoparticle/Multiwalled Carbon Nanotube Composite Surfaces

doi:10.3866/PKU.WHXB20110939

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	Enhancing the Catalytic Activity of Peroxidase by Adsorption onto Fe3O4 Magnetic Nanoparticle/Multiwalled Carbon Nanotube Composite Surfaces
	Gao Yun-Yan 1; Li Hai-Xia 1; Ou Zhi-Ze 1; Hao Ping 1; Li Yi 2; Yang Guo-Qiang 3
刊名	ACTA PHYSICO-CHIMICA SINICA
	2011-10-01
卷号	27 期号:10 页码:2469-2477
关键词	Carbon Nanotube Magnetic Nanoparticle Peroxidase Nanocomposite Superparamagnetic Property
ISSN号	1000-6818
DOI	10.3866/PKU.WHXB20110939
英文摘要	Fe3O4 magnetic nanoparticles were prepared by co-precipitation and supported on the surface of aminopyridine-grafted multiwalled carbon nanotubes (MWCNT-AP), affording a superparamagnetic Fe3O4/MWCNT-AP composite with good dispersity. The Fe3O4/MWCNT-AP composites were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and hysteresis curve measurements. Transmission electron microscopy (TEM) experimental results suggest that the Fe3O4 nanoparticles are mainly adsorbed on the tips of the MWCNT-AP. UV-Vis absorption and fluorescence results demonstrate that horseradish peroxidase (HRP) can be physically adsorbed onto the surfaces of the Fe3O4/MWCNT-AP composite. Under acidic conditions (pH 4.0), the maximum reaction rate (v(max)) value of the HRP increases 3-fold after interaction with Fe3O4/MWCNT-AP.
语种	英语
出版者	PEKING UNIV PRESS
WOS记录号	WOS:000295380300032
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/72713]
专题	中国科学院化学研究所
通讯作者	Gao Yun-Yan
作者单位	1.Northwestern Polytech Univ, Sch Sci, Minist Educ, Key Lab Space Appl Phys & Chem, Xian 710072, Peoples R China 2.Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Gao Yun-Yan,Li Hai-Xia,Ou Zhi-Ze,et al. Enhancing the Catalytic Activity of Peroxidase by Adsorption onto Fe3O4 Magnetic Nanoparticle/Multiwalled Carbon Nanotube Composite Surfaces[J]. ACTA PHYSICO-CHIMICA SINICA,2011,27(10):2469-2477.
APA	Gao Yun-Yan,Li Hai-Xia,Ou Zhi-Ze,Hao Ping,Li Yi,&Yang Guo-Qiang.(2011).Enhancing the Catalytic Activity of Peroxidase by Adsorption onto Fe3O4 Magnetic Nanoparticle/Multiwalled Carbon Nanotube Composite Surfaces.ACTA PHYSICO-CHIMICA SINICA,27(10),2469-2477.
MLA	Gao Yun-Yan,et al."Enhancing the Catalytic Activity of Peroxidase by Adsorption onto Fe3O4 Magnetic Nanoparticle/Multiwalled Carbon Nanotube Composite Surfaces".ACTA PHYSICO-CHIMICA SINICA 27.10(2011):2469-2477.