控制用于增强PLA/ZnO生物复合材料性能的等离子功能填充剂:过量的l-乳酸的影响和生物医学影响
Daniel A L V Cunha1, Felippe M Marega1, Leonardo A Pinto1
1Graduate Program in Materials Science and Engineering, Federal University of Sao Carlos, Sao Carlos, 13565-905, Brazil.
ACS applied materials & interfaces
|March 12, 2025
概括
血处理生物复合物的过量功能化剂可能会损害细胞生长. 清除残留的乳酸 (LA) 对于成功的组织工程应用至关重要,确保更好的生物反应和细胞增殖.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 表面化学 表面化学
背景情况:
- 陶颗粒的等离子表面处理是组织工程中开发生物复合材料的关键.
- 粒子表面上的功能组增强粘附性,生物相容性和反应性,同时减轻聚合物降解.
- 过多的功能化剂会导致细胞毒性,抑制细胞生长,阻碍组织再生.
研究的目的:
- 调查血表面处理中多余的乳酸 (LA) 对聚乳酸 (PLA) 和氧化 (ZnO) 生物复合物的影响.
- 评估不同 LA 度对热,,生物和可湿性特性的影响.
- 确定是否有必要去除多余的功能化剂,以便在组织工程中获得最佳的生物复合材料性能.
主要方法:
- 用不同度的l-乳酸 (LA) 处理ZnO颗粒的等离子表面处理.
- 制造含有处理颗粒的PLA/ZnO生物复合材料.
- 生物复合物的特性,包括热性,性,湿性和体外生物反应 (细胞增殖) 的表征.
主要成果:
- 塑表面处理有效地减少了化加工过程中ZnO催化PLA的降解,而不管LA过量.
- 在生物复合材料的风湿性,热性和可湿性特性中观察到的变化很小.
- 观察到残留LA对细胞增殖和生物反应的显著负面影响,突显了其去除的重要性.
结论:
- 表面处理成功地减轻了降解,但过量的LA残留物对生物应用有害.
- 优化过多的功能化剂的去除对于开发用于组织工程的有效生物复合材料至关重要.
- 仔细控制功能化剂度和后处理处理对于生物复合材料设计至关重要.
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