没有溶剂的聚烯酸-生物陶复合材料的融电写
M L Eames1, A Weekes2, T Ayyachi1
1Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, Australia; School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia.
Biomaterials
|December 29, 2025
概括
这项研究开发了使用电写 (MEW) 的新型聚烯酸 (PCL) /生物陶复合材料支架. 用添加的生物玻璃/PCL支架有效地支持骨质细胞生长,显示出用于骨组织工程的增强细胞活性.
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.
- 材料化学 材料化学
背景情况:
- 在重建性外科手术中对合成骨移植材料的需求不断增加.
- 当前合成骨移植替代品的局限性.
研究的目的:
- 开发和描述用于骨组织工程的新型聚烯酸 (PCL) /生物陶复合材料支架.
- 评估添加生物玻璃 (MoBG) /PCL支架在支持骨质细胞生长中的有效性.
主要方法:
- 使用冷混合和电写 (MEW) 制造PCL/生物陶复合材料支架.
- 将45S5生物玻璃或添加生物玻璃 (MoBG) 纳入PCL,度为25 wt%.
- 评估脚手架的机械性能和与骨质细胞培养物的生物相容性.
主要成果:
- 低温混合使生物陶在没有溶剂的PCL中均分散.
- MEW加工产生了复合式支架,其弹性模量增加,破裂时延伸减少.
- 在7天后,MoBG/PCL支架显示出对骨质细胞生长的优越支持,其证据是代谢活动和DNA度增加.
结论:
- PCL/生物陶复合材料的电写是一种可行的制造方法.
- 用添加生物玻璃/PCL复合结构的支架显示了先进的骨组织工程应用的巨大潜力.
- 这些新的支架为开发有效的合成骨移植材料提供了有希望的途径.
更多相关视频
09:22Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
Published on: August 28, 2015
19.6K
12:28Melt Electrospinning Writing of Three-dimensional Poly(ε-caprolactone) Scaffolds with Controllable Morphologies for Tissue Engineering Applications
Published on: December 23, 2017
15.7K
相关概念视频
Cationic Chain-Growth Polymerization: Mechanism
The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...
Classification and Mechanical Properties of Synthetic Polymers
Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...
