凝-藻酸盐水凝与酸和二甲基粉交叉连接,作为潜在的生物墨水
Joanna Skopinska-Wisniewska1, Marta Tuszynska1,2, Łukasz Kaźmierski2
1Chair of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7 Street, 87-100 Torun, Poland.
Polymers
|September 28, 2024
概括
这项研究通过结合基酸盐和凝来优化组织工程的水凝特性. 降低化度提高了生物相容性和交联效率,而二甲基粉提高了3D应用的弹性和可打印性.
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.
- 在3D生物打印中使用3D生物打印
背景情况:
- 水凝是组织工程和3D打印的关键生物材料,因为它们具有可调的物理化学和机械特性.
- 交叉连接的方法和药物对于为特定的生物医学应用量身定制水凝特性至关重要.
- 酸和凝混合物具有作为多功能水凝支架的潜力.
研究的目的:
- 确定用于组织工程和3D打印的藻酸盐-凝水凝的最佳组成和交叉链路策略.
- 评估不同化 (CaCl2) 度和化学交叉链接剂 (二氧化酸 - SQ,二甲基粉 - DAS) 对水凝性能的影响.
主要方法:
- 用于制备和描述与CaCl2离子交叉连接的甲基酸盐-凝水凝,与SQ或DAS交叉连接.
- 评估机械性能 (拉力强度,扬模块,破裂时的延长),膨胀程度,热稳定性 (FTIR,热分析) 和形态 (SEM).
- 对潜在的3D生物打印应用的水凝毒性和可打印性进行评估.
主要成果:
- 使用2%的酸和6%的凝混合物,可以达到最佳的水凝性能.
- 将CaCl2度降至1%提高了生物相容性和交联效率,提高了拉伸强度和弹性,同时降低了毒性.
- 1% DAS 的化学交联进一步提高了弹性和可打印性,使 1% DAS 和 1% CaCl2 的交联水凝成为最有前途的候选人.
结论:
- 一种6%的凝-2%的藻酸盐水凝与1%的CaCl2和1%的DAS交叉连接,证明了组织工程的最佳性能.
- 这种配方具有出色的生物相容性,机械完整性和可打印性,使其适用于先进的3D打印应用.
- 这项研究为开发用于再生医学的先进水凝生物材料提供了强有力的战略.
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