一种响应pH值的多功能氨酸-醇水凝,具有固有的抗菌和抗氧化活性
Weiyang Wang1, Akou May Tehoungue1, Zilong Gao1
1Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China. zyssri@just.edu.cn.
Journal of materials chemistry. B
|March 5, 2026
概括
一种新的氨酸-醇水凝 (S8P2) 显示出快速凝,良好的机械强度和pH响应. 这种多功能生物材料为生物医学用途提供广泛的抗菌和抗氧化特性.
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
- 生物医学工程 生物医学工程
背景情况:
- 自然材料衍生的水凝为生物医学应用提供可调节的特性.
- 素是一种天然的丝蛋白质,具有生物活性,但需要修改以提高功能.
- 响应pH的材料对于控制的生物相互作用和药物输送至关重要.
研究的目的:
- 合成和表征一种具有增强生物活性和pH响应性的新型素-醇水凝 (S8P2).
- 评估S8P2水凝的物理化学,机械和生物特性.
- 探索S8P2水凝在生物医学应用中的潜力,如伤口包裹和组织工程.
主要方法:
- 从纤维素缺乏的丝虫子中分离出的素.
- 素与醇的交叉连接形成S8P2水凝.
- 水凝性质的表征:凝时间,微观结构,透明度,机械强度,胀,降解,抗菌活性,抗氧化活性,细胞相容性和血液溶解.
主要成果:
- 该S8P2水凝表现出快速凝,微孔结构 (15微米孔径,65%的孔径) 和高透明度 (~65%).
- 它表现出显著的pH响应性胀和降解,优良的机械性能 (15kPa压缩模量,弹性恢复),以及广泛的抗菌活性.
- 水凝显示出增强的抗氧化活性,与L929纤维细胞的良好细胞兼容性,高细胞粘附性和最小的血液溶解 (<5%).
结论:
- 合成的S8P2水凝是一种强大的多功能生物材料,具有理想的物理化学和生物特性.
- 它的pH响应性,抗菌功效,抗氧化活性和生物相容性使其适用于先进的生物医学应用.
- S8P2水凝为伤口,组织工程支架和可控药物输送系统提供了一个有前途的候选人.
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