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具有生物操作温度范围的生物相容低压电热驱动器.

Adéla Slavíková1, Benjamin C Baker1, Marcos Villeda-Hernandez1

  • 1School of Chemistry, University of Bristol, Bristol, BS8 1TS UK.

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研究人员开发了一种生物相容的低压电热驱动器Bio35. 这种人造肌肉在温和的温度下运行,并且对医疗应用有希望,需要精确的肌肉运动.

关键词:
执行器 执行器 执行器聚合物 聚合物 聚合物

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科学领域:

  • 生物材料科学 生物材料科学
  • 软机器人软机器人 软机器人软机器人
  • 生物医学工程 生物医学工程

背景情况:

  • 肌肉损失影响运动和生理功能,增加对人工肌肉解决方案的需求.
  • 现有的软执行器在生物相容性方面面临挑战,特别是在热传递和细胞毒性方面.
  • 开发安全有效的人工肌肉对于各种生物医学应用至关重要.

研究的目的:

  • 为人工肌肉应用开发一种生物相容的低压电热驱动器.
  • 解决当前软执行器在传热和非细胞毒性方面的局限性.
  • 在功能系统中展示开发的执行器的潜力.

主要方法:

  • 合成 Bio35 采用一式无溶剂方法,使用 Epikote 828,聚乙烯基醇 (PPG) bis (2-amino-propyl-ether) 和 1,4-diamino-diphenyl-sulfone (DDS) 进行合成.
  • 描述了执行器的电热性能,在3.6V和38.9°C工作.
  • 通过100多个启动周期 (200分钟) 评估化学稳定性,并进行生物相容性和非细胞毒性初步生物测试.

主要成果:

  • 生物35在100个周期 (200分钟) 上表现出稳定的执行性能,表明其化学稳定性很高.
  • 执行器在轻度高热温度 (38.9°C) 和低电压 (3.6V) 下工作.
  • 最初的生物测试证实Bio35是生物相容和非细胞毒性.

结论:

  • 生物35代表了一个有前途的生物相容电热驱动器,用于人工肌肉应用.
  • 开发的执行器显示出在医疗设备中使用的潜力,例如抓器和状门.
  • 进一步的发展可能会导致对尿失禁等需要精确调动的疾病的治疗.