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铁合成使用生物基盐凝方法用于生物医学应用

Patrícia Gomes¹, Bárbara Costa¹, João P F Carvalho¹

¹i3N and Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal.

Molecules (Basel, Switzerland)

|December 9, 2023

概括

研究人员使用子水开发了新的铁纳米颗粒,用于磁性高温治疗癌症. 优化的颗粒显示出作为一种安全有效的治疗方法的承诺,最大限度地减少与传统癌症治疗相关的副作用.

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:

癌症仍然是全球主要的死亡原因.
传统的癌症疗法,如化疗和放射治疗,具有显著的局限性和不良影响.
磁性高温症 (MH) 是一种有前途的替代或补充癌症治疗方法.

研究的目的:

合成和表征铁酸盐 (CoFe2O4) 纳米粒子,以在磁性高温治疗癌症中潜在应用.
评估合成纳米粒子的结构性,磁性和热性质.
评估细胞毒性作用和生物医学可行性的特定吸收率 (SAR).

主要方法:

铁酸盐纳米颗粒是使用生物性sol-gel方法合成的,该方法包括子水 (PCW) 粉末.
合成的粉末经历了从500°C到1100°C的热处理.
鉴定包括热,结构 (X射线衍射,拉曼光谱),磁和细胞毒性分析.

主要成果:

在1100°C处理的样品证实了CoFe2O4的纯相,和磁化值为84emu/g,平均粒径为542nm.
这样优化的样本显示了3.91W/g的特定吸收率 (SAR).
这些纳米颗粒在高达5毫克/毫升的度下表现出非细胞毒性,这表明它们具有良好的生物相容性.

结论:

合成的铁纳米颗粒,特别是那些在1100°C处理的纳米颗粒,非常适合用于磁性高温治疗癌症.
生物合成方法提供了一种创新的和潜在的环保方法来生产MH剂.
这些发现突显了这些纳米粒子作为癌症治疗的安全有效治疗剂的潜力.

关键词:

癌症癌症癌症癌症癌症科巴尔特铁酸盐的铁是什么意思磁热过热是一种磁性过热.磁性纳米粒子是一种磁性纳米粒子.sol

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