磁芯外纳米颗粒用于高温症:基于双相滞后模型的肝脏组织中的软硬芯外磁性材料的数值研究
M Moshtagh1, M Servatkhah1,2, S Hosseini2
1Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran.
Biochemistry and biophysics reports
|July 18, 2025
概括
核心外磁性纳米颗粒显示出局部高温症癌症治疗的希望. 使用双相滞后模型的数值模拟揭示了最佳的纳米粒子组成,以有效地分配热量和破坏肝脏组织中的瘤.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 计算物理 计算物理
背景情况:
- 局部高温症是一种有前途的癌症治疗方式.
- 磁纳米粒子提供有针对性的加热能力.
- 精确的热建模对于优化高温疗效至关重要.
研究的目的:
- 通过使用核心外磁纳米粒子在肝脏组织中的局部高热量进行数值研究.
- 在交流磁场下模拟热分布和瘤破坏.
- 将双相滞后 (DPL) 模型的预测精度与其他热模型进行比较.
主要方法:
- 使用核心外磁性纳米粒子 (Zn0.4Co0.6Fe2O4 @Zn0.4 Mn0.6 Fe2 O4) 进行过热模拟.
- 采用双相滞后 (DPL) 模型来模拟随时间的温度分布.
- 将DPL模型的预测与Pennes生物热和单相滞后 (SPL) 模型进行了比较.
- 在肝脏组织中进行2D温度分布模拟.
主要成果:
- DPL模型预测的最高温度低于Pennes和SPL模型.
- Zn0.4Co0.6Fe2O4 @Zn0.4 Mn0.6 Fe2 O4纳米粒子产生了最高的温度.
- 温度分布呈现出高斯式的,辐射对称的图案,在瘤中心最大.
- 优化的纳米粒子组合显示了增强的磁性和功率消耗.
结论:
- 核心外磁性纳米粒子,特别是Zn0.4Co0.6Fe2O4 @Zn0.4 Mn0.6 Fe2 O4,对于向性高温是有效的.
- 该DPL模型提供了宝贵的洞察力纳米粒子诱导高温期间的热力学.
- 这些发现支持开发基于磁纳米粒子的先进癌症疗法.
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