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穆萨阿库米纳塔作为电穿孔模型

Daniella L L S Andrade1, Guilherme B Pintarelli2, Juliana V Rosa1

  • 1Institute of Biomedical Engineering, Department of Electrical and Electronics Engineering, Federal University of Santa Catarina, Florianópolis, SC, Brazil.

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概括

卡文迪什香组织为电穿孔 (EP) 研究提供了土豆幽灵的快速,可靠的替代方案. 这种Musa acuminata模型迅速评估电场分布,有助于癌症治疗的开发.

关键词:
卡文迪什香 (Cavendish banana) 是一种香.数学建模的数学建模非线性现象是一种非线性现象.关于PEF的处理方法模仿组织的幻影.

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科学领域:

  • 生物物理学的生物物理.
  • 生物材料是一种生物材料.
  • 医疗工程 医疗工程

背景情况:

  • 电化学疗法 (ECT) 和不可逆向电穿孔 (IRE) 是基于电场的癌症疗法.
  • 准确的组织导电性建模对于治疗规划和硬件开发至关重要.
  • 在电穿孔 (EP) 过程中,Solanum tuberosum (土豆) 幽灵被用来模仿组织的电特性.

研究的目的:

  • 开发和验证Musa acuminata (Cavendish香) 导电性模型,作为EP研究中马幻象的快速替代品.
  • 调查EP期间香组织中的频率响应,导电性变化和电场分布.
  • 优化用于描述生物组织中EP的数学模型.

主要方法:

  • 阻抗光谱分析以确定香组织的介电参数.
  • 酶染色以可视化和评估电孔区域.
  • 优化适应的Gompertz,平滑的Heaviside和sigmoid/物流函数以模拟EP.
  • 香组织与土豆组织的电导和导电率的比较.

主要成果:

  • 香组织表现出与土豆相似的介电参数,电导率为0.035 S/m,相对导电率为4.1×10^4.4.
  • 优化的EP模型显示了高的确定系数 (R2>99.5%),而Sigmoid和Heaviside函数准确地描述电流.
  • 在EP后3.5小时内,可以观察到香的电孔区域,在450V/cm时有显著的染色.

结论:

  • Musa acuminata (Cavendish香) 作为可靠的,快速起作用的幻影用于电穿孔研究,比马节省了大量时间.
  • 开发的香导电模型适用于处理规划,硬件开发和EP培训.
  • 香幽灵支持动物研究中的3Rs原则 (取代,减少,改进),并为EP研究提供了可行的替代方案.