动态水化驱动的粘性 粉状蛋白质的自我强化,用于快速动脉血静
Junlian Nie1, Yingchuan Sun2, Shengjie Zhang2
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Qianjin Avenue 2699, Changchun, 130012, China.
Biomaterials
|April 12, 2025
概括
这项研究引入了一种新型的蛋白质粉粘合剂,该粘合剂由,二甲基硫酸盐 (SDS) 和聚氨酸 (PLL) 制成. 这种生物相容,可生物降解的粘合剂在潮湿的表面上提供快速,坚固的粘合,在动物模型中证明对动脉血静有效.
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
- 手术创新 在外科创新.
背景情况:
- 在潮湿条件下实现快速而坚固的粘附,特别是动脉静血,在外科应用中仍然是一个重大挑战.
- 现有的手术粘合剂在水性环境中往往难以有效,限制了它们在关键出血控制中的使用.
研究的目的:
- 开发一种基于蛋白质的新型粉末粘合剂,具有增强的水化驱动的自我强化,用于有效的湿粘合.
- 研究粘合剂在水性条件下快速凝结和强大的粘合能力背后的机制.
- 评估开发的粘合剂的性能和生物相容性,用于潜在的动脉血静应用.
主要方法:
- 一种由Zeen,二甲硫酸盐 (SDS) 和聚氨酸 (PLL) 组成的蛋白质粉粘合剂,使用一种以砂城虫为灵感的多价离子交联方法来合成.
- 标志着粘合剂的特性,包括凝时间,湿表面的粘合强度和凝聚力.
- 进行了体外和体外评估,以评估大鼠,子和猪动脉模型中的生物相容性,生物降解和静血疗效,并测量了对破裂压力的抵抗力.
主要成果:
- /SDS/PLL粉末表现出快速接触水的凝,并在2分钟内在潮湿的表面上表现出坚固的粘附性.
- 介面脱水和液化粉体的散体异质性协同增强了介面粘附和散体凝聚力.
- 该粘合剂显示出极好的生物相容性和生物降解性,在多种动物模型中成功实现了快速可靠的动脉血静止,承受了高破裂压 (118.2-129.4 mmHg).
结论:
- 开发的 zein/SDS/PLL 粉末粘合剂为在湿手术条件下实现快速可靠的动脉静脉血静提供了有前途的解决方案.
- 液化驱动的自我强化和散装异质性的独特机制解决了在开发有效的湿粉粘合剂的关键差距.
- 粘合剂的生物相容性,生物降解性和体内强大的性能支持其在临床实践中的潜在转化.
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