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用于3D生物打印的颗粒型双相合体水凝.

Kaivalya A Deo1, Aparna Murali1, James J Tronolone1

  • 1Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX, 77843, USA.

Advanced healthcare materials
|May 15, 2024
PubMed
概括

一种新的双相生物墨水通过保护微粒内的细胞,同时保持打印保真度来增强3D生物打印. 这一创新提高了细胞活力,并使复杂的组织工程应用成为可能.

关键词:
在3D生物打印中使用3D生物打印药物输送是药物输送的过程.颗粒状的合体水凝.水凝微粒的微粒.这是一个纳米复合材料.

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科学领域:

  • 生物材料科学 生物材料科学
  • 组织工程是组织工程.
  • 生物打印技术的技术

背景情况:

  • 颗粒状水凝对3D生物打印有希望,提供细胞保护.
  • 实现高印刷准确性需要微粒干扰,这可能会损害细胞活力.
  • 现有的方法难以平衡细胞保护和可打印性.

研究的目的:

  • 为3D生物打印引入一种新型的双相颗粒型合体生物墨水.
  • 为了同时优化细胞活力和打印保真度.
  • 展示工程复杂组织和疾病模型的潜力.

主要方法:

  • 在凝甲基 (GelMA) - - 纳米酸盐的体网络中,开发了一种由细胞载荷的聚乙烯糖醇 (PEG) 水凝微粒组成的双相生物墨水.
  • 描述生物墨水的质性质,印刷保真性和结构稳定性.
  • 纳入不同类型的细胞 (β岛细胞和内皮细胞) 来证明组织工程能力.

主要成果:

  • 双相生物墨水表现出卓越的质特性,印刷保真性和结构稳定性.
  • 成功设计具有多种细胞类型和异质微环境的复杂组织.
  • 已证明能够诱导细胞模式,增强血管化和直接细胞功能.

结论:

  • 开发的双相生物墨水有效地克服了3D生物打印中细胞活力和打印保真度之间的权衡.
  • 这项技术对先进的组织工程,疾病建模和再生医学具有重大潜力.
  • 这种方法可以精确控制工程组织组织中的细胞组织和功能.