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Magnetic and inductive heating properties of Fe3O4/polyethylene glycol composite nanoparticles with core-shell structure

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单位： [1]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China [2]Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China [3]China Japan Friendship Hosp, Inst Clin Med Sci, Beijing 100029, Peoples R China [4]Tsinghua Univ, Sch Med, Beijing 100084, Peoples R China

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关键词： Nanostructures Nanofabrications Scanning and transmission electron microscopy X-ray diffraction Magnetic measurements

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The magnetite (Fe3O4) nanoparticles were prepared by coprecipitation of Fe3+ and Fe2+ using ammonium hydroxide (NH4OH) as a precipitating agent. The Fe3O4/polyethylene glycol (PEG) magnetic composite nanoparticles with a core-shell structure with a diameter of 10-40 nm were prepared by two step additions of the primary and the secondary surfactants, respectively. The inductive heat property of Fe3O4/PEG composite nanoparticles in an alternating current (AC) magnetic field was investigated. The potential of Fe3O4/PEG nanoparticles was evaluated for localized hyperthermia treatment of cancers. The saturation magnetization, Ms, and coercivity, Hc, are 67.06 emu g(-1) and 7 Oe for Fe3O4 nanoparticles and 64.11 emu g(-1) and 14 Oe for Fe3O4/PEG composite nanoparticles, respectively. Exposed in the AC magnetic field for 100 s, the temperatures of physiological saline suspensions containing Fe3O4 nanoparticles or Fe3O4/PEG composite nanoparticles are 89.2 degrees C and 72.2 degrees C, respectively. The Fe3O4/PEG composite nanoparticles will be useful as good thermoseeds for localized hyperthermia treatment of cancers. (C) 2010 Elsevier BM. All rights reserved.

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出版当年[2009]版：

大类 | 3 区工程技术

小类 | 2 区冶金工程 3 区材料科学：综合 4 区物理化学

最新[2025]版：

大类 | 2 区材料科学

小类 | 2 区冶金工程 3 区材料科学：综合

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出版当年[2008]版：

Q1 METALLURGY & METALLURGICAL ENGINEERING Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Q3 CHEMISTRY, PHYSICAL

最新[2023]版：

Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 METALLURGY & METALLURGICAL ENGINEERING Q2 CHEMISTRY, PHYSICAL

影响因子： 最新[2023版] 5.8 最新五年平均[2021-2025] 5.3 出版当年[2008版] 1.51 出版当年五年平均[2004-2008] 1.61 出版前一年[2007版] 1.455 出版后一年[2009版] 2.135

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第一作者单位： [1]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

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