Heating Ability of γ-Fe2O3@ZnO/Al Nanocomposite for Magnetic Hyperthermia Applications

Author:

Madkhali Nawal1,Algessair Saja1,Lemine O. M.1,Alanzi Ali Z.2,Ihzaz N.3,EL Mir L.4

Affiliation:

1. Department of Physics, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMISU), Riyadh, 11623, Saudi Arabia

2. King Abdulaziz City for Science and Technology, Riyadh, 11442, Saudi Arabia

3. Laboratory of Physico-Chemistry of Materials, Department of Physics, Faculty of Sciences, P.O.B 56500, Monastir, Tunisia

4. Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhysMNE), Faculty of Sciences of Gabes, University of Gabes, 6072, Gabes, Tunisia

Abstract

The development of nanocomposite for magnetic fluid hyperthermia applications is in high demand and has captivated the interest of researchers in recent years. Herein, we report the synthesis by sol–gel method, heating ability, and the characterization of γ-Fe2O3@ZnO/Al nanocomposite with several techniques, including X-ray diffraction, Fourier transformer Infrared, Transmission electron microscopy, energy dispersive spectroscopy and vibrating sample magnetometer. X-ray diffraction and Rietveld analysis showed the formation of the nanocomposite with the presence of maghemite (γ-Fe2O3) and ZnO. The nanocomposite exhibits high crystallinity, small sizes, and superparamagnetic behavior. Langevin’s paramagnetism theory and the law of approach to saturation have been used to confirm superparamagnetism and to calculate the effective anisotropy constant, respectively. Heating ability was investigated as a function of concentration and field amplitude in an alternating magnetic field. We found that the nanocomposite rapidly reached the hyperthermia temperature (42 °C) under an alternating magnetic field in 160 s, and it could rise to 66 °C in 900 s with a specific absorption rate equal to 119 W · g−1 and intrinsic loss power equal to 1.95 nHm2 kg−1. The high crystallinity and intrinsic loss power values appear to be in the range of the reported commercial ferrofluids (0.20–3.10 nHm2 kg−1), strongly suggesting that the synthesized nanocomposite is a promising candidate for the application of photo/magnetic fluid hyperthermia.

Publisher

American Scientific Publishers

Subject

General Materials Science

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3