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Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
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在PISA中,可以打印可 perfusable 微毛细血管.

Aaron Priester1, Jimmy Yeng1, Yuwei Zhang2

  • 1Department of Materials Science and Engineering, Missouri University of Science and Technology, 1400 North Bishop Avenue, Rolla, MO 65409, USA. convertinea@mst.edu.

Biomaterials science
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PubMed
概括
此摘要是机器生成的。

本研究介绍了一种简化的PISA打印方法,使用多CTA支架制造复杂的3D结构. 该技术能够精确控制纳米尺度的特征,并为先进的微型制造创造强大的,可溶解的网络.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 微型制造业的微型制造

背景情况:

  • 聚合诱导自组装 (PISA) 打印整合了可逆添加碎片链转移 (RAFT) 聚合和数字光投影 (DLP) 光材.
  • 现有的方法通常需要复杂的合成和净化步骤来创建3D聚合物结构.

研究的目的:

  • 为PISA打印开发一个简化的,单式,无净化合成多链转移剂 (多CTA) 支架.
  • 为了证明精确控制纳米尺度形态和选择性分布行为在印刷结构.
  • 以展示使用这种增强的PISA打印方法制造功能性微型设备.

主要方法:

  • 使用单合成为多CTA支架,消除了净化步骤.
  • 通过将RAFT聚合与DLP光刻印刷相结合,采用PISA打印.
  • 调整溶剂-树脂化学和聚合物组成,以控制材料特性和打印结果.

主要成果:

  • 成功合成了多个CTA支架,在打印过程中形成自发的,强大的物理网络.
  • 通过调整材料参数来实现对纳米尺度形态和选择性分布行为的精确控制.
  • 制造的可 perfusable 微血管网络和开放通道聚甲基 (PDMS) 微流体设备,在脚手架溶解后具有稳定的微通道.

结论:

  • 简化的PISA打印方法提高了微型制造的可访问性,灵活性和功能.
  • 这种可适应的平台适用于快速原型和先进的组织工程应用.
  • 开发的方法提供了一个有效的途径,可以创建复杂的,高分辨率的3D聚合物结构,没有永久的交叉链接.