坚固的聚氨水凝具有多个键互锁双连续相结构,由现场水诱导的微相分离制备
Ruyue Wang1, Ting Xu1, Yuxuan Yang2
1Engineering Research Center of Energy Storage Materials and Devices Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China.
Advanced materials (Deerfield Beach, Fla.)
|December 23, 2024
概括
研究人员开发出坚固的聚氨基水凝,灵感来自自组装聚合物. 这些先进的水凝模仿自然组织的强度,为组织修复和预防提供有前途的生物医学应用.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 组织工程是组织工程.
背景情况:
- 具有与承载组织相匹配的机械性能的水凝对于体内应用至关重要.
- 开发强大的水凝需要策略来增强其机械强度和生物相容性.
研究的目的:
- 设计基于聚氨的坚固水凝,具有双连续相位结构.
- 为了实现适合承载生物医学应用的机械性能,例如预防.
主要方法:
- 使用水诱导的微相分离策略与混合的水友性聚乙烯基醇基聚氨 (PEG-PU) 和性聚乙烯基 (PCL-PU) 基聚氨 (PCL-PU).
- 嵌入的伊米达索利丁尿素促进PEG-PU和PCL-PU之间的多重键,促进同质微相分离和双连续网络形成.
主要成果:
- 开发的水凝具有卓越的机械性能:破裂强度为12.9 MPa,破裂能量为2435 J m-2和性为48.2 MJ m-3.
- 在腹壁缺陷模型中,水凝贴片有效地防止了的形成.
- 与商用聚烯网相比,已证明组织粘附性降低,炎症反应降低,血管新生增强.
结论:
- 开发的基于聚氨的坚固水凝具有卓越的机械强度和生物医疗应用的生物相容性.
- 使用溶剂诱导的微相分离和结合的策略为设计先进的凝材料提供了一个有前途的途径.
- 这些发现为开发下一代用于组织修复和再生的生物材料提供了宝贵的见解.
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