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铁酸盐用于生物医学应用.

João P F Carvalho1, Tânia Vieira2, Jorge Carvalho Silva2

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

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|May 27, 2023
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概括

使用子水的铁酸盐 (KFeO2) 颗粒的绿色合成显示了生物医学应用的潜力. 虽然生物相容,但热处理是必要的,以优化磁性特性和降低细胞毒性,用于诸如磁热过热等应用.

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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
  • 绿色化学 绿色化学

背景情况:

  • 由于其用于诊断,药物输送和高温的磁性特性,费里特在生物医学中非常有价值.
  • 开发新的费里特合成路径对于推进生物医学应用至关重要.

研究的目的:

  • 用绿色蛋白质sol-gel方法与子水合成KFeO2颗粒.
  • 为了研究热处理对KFeO2粒子特性的影响,用于生物医学.

主要方法:

  • 使用子水粉末作为前体进行蛋白质sol-gel合成.
  • 热处理范围从350°C到1300°C.
  • 结构,形态,生物相容性和磁性表征.

主要成果:

  • 观察到KFeO2相形成和二次相,受热处理温度的影响.
  • 通过扫描电子显微镜观察到的微米粒.
  • 和磁化范围在15.5至24.1emu/g之间.
  • 细胞毒性仅在350°C观察到;更高的温度显示生物相容性.
  • 特定的吸收率很低 (1.55-5.76 W/g).

结论:

  • 绿色合成方法通过热处理产生了具有可调节性质的KFeO2颗粒.
  • 优化热处理是必要的,以管理相位纯度和增强生物医学应用的磁性.
  • 需要进一步的研究,以提高有效的磁性高热治疗的特定吸收率.