在磁性超热症中,醇功能化磁性生物炭 (PFMB) 的结构,磁性和加热能力
O M Lemine1, M Bououdina2, Turki Altoub1
1Department of Physics, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMISU) Riyadh 11623 Saudi Arabia mamamin@imamu.edu.sa.
RSC advances
|August 8, 2025
概括
醇功能化磁性生物炭 (PFMB) 纳米复合材料显示,对磁性高热的加热效率有所提高. 这些稳定的材料显示出体外癌症治疗应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
背景情况:
- 磁纳米粒子对于有针对性的疗法至关重要,比如磁性高温症.
- 基于生物炭的磁性纳米复合材料提供了一个有前途的平台,因为它们的稳定性和可调节性质.
- 表面功能化是提高体稳定性和加热效率的关键.
研究的目的:
- 为了合成和表征醇功能化磁性生物炭 (PFMB) 纳米复合材料.
- 为了评估它们在磁性高热应用中的性能.
- 评估pyrrole功能化对稳定性和加热效率的影响.
主要方法:
- 在生物炭矩阵中嵌入Fe3O4纳米粒子的热水合成.
- 使用pyrrole进行表面功能化.
- 使用XRD,FTIR,SEM/EDAX进行结构和形态表征.
- 磁性属性的分析.
- 在交替磁场 (AMF) 下进行磁热过热实验.
主要成果:
- 成功合成了PFMB纳米复合材料,其中嵌入了Fe3O4纳米粒子和pyrrole涂层.
- 鉴定证实了磁石阶段和成功的功能化.
- 与光磁生物炭 (MB) 相比,PFMB表现出超偏磁性,具有降低的和磁化.
- 与MB (12.3431.80 W g-1) 相比,PFMB (24.2753.77 W g-1) 的样本吸收率 (SAR) 显著提高.
- 对于PFMB (0.70 nH m2 kg−1) 的高内在损耗功率 (ILP) 值.
- 在更高的频率 (332 kHz, 469 kHz) 上,高效地加热到治疗温度 (42 °C).
结论:
- PFMB纳米复合材料显示出优越的加热效率和稳定性用于磁性高热.
- 醇功能化增强了体外应用的性能.
- 作为高热症癌症治疗的有效和稳定的药物,PFMB显示出潜力.
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