Preparation and Characterization of Fe3O4/Ethiodized‐oil Magnetic Fluids Used in Arterial Embolization Hyperthermia |
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| Authors: | Zhi Luo Yiming Wang Ruoyu Hong Hongzhong Li |
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| Affiliation: | 1. College of Chemistry, Chemical Engineering and Materials Science & Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, SIP, Suzhou, Jiangsu 215123, China;2. College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China;3. State Key Laboratory of Multi‐phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Fe3O4 nanoparticles (NPs) were prepared by the co‐precipitation of Fe3+ and Fe2+ with ammonium hydroxide, and were modified by four different surfactants. The modified Fe3O4 NPs were characterized by Fourier transform infrared spectroscopy, X‐ray powder diffraction, transmission electron microscopy and vibrating sample magnetometer. Then, the modified Fe3O4 NPs were dispersed in ethiodized‐oil by mechanical agitation and ultrasonic vibration to obtain stable Fe3O4/ethiodized‐oil magnetic fluids (MFs). The magnetic properties and rheological properties of the MFs were measured using a Gouy magnetic balance and a rotational rheometer, respectively. The saturation magnetization of the Fe3O4 modified by oleic acid was 52.1 emu/g. Furthermore, the result showed that the inductive heating effect of oleic acid stabilized Fe3O4/ethiodized‐oil MF was remarkable and it only took 650 s for the temperature rising from 25°C to 65°C. The specific absorption rate of the MF was 50.16 W/(g of Fe). It had a potential application in arterial embolization hyperthermia. |
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| Keywords: | ethiodized‐oil Fe3O4 magnetic properties rehology arterial embolization hyperthermia |
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