基于硫的抗微生物块共聚物:对生物活性和抗生素协同作用的疏水性影响
Sidra Kanwal1, Otto Staudhammer1, Umer Bin Abdul Aziz1
1Freie Universität Berlin, Institute of Pharmacy, Berlin, Germany.
Macromolecular rapid communications
|October 1, 2025
概括
基于硫的阻断共聚物 (BCP) 显示出强大的抗菌活性和低细胞毒性. 定制聚合物结构优化了这种平衡,提高了传统抗生素的疗效.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- 抗菌聚合物 (AMP) 对于对抗细菌感染至关重要.
- 基于硫的AMP提供了高效率和低毒性的有希望的平衡.
- 目前的研究重点是随机的共聚合物,使得基于硫的区块共聚合物 (BCP) 的结构-性质关系未得到充分探索.
研究的目的:
- 研究基于硫的新型BCP中的结构-属性关系.
- 开发BCP,将一个活性硫块与一个细胞相容的聚乙醇甲基酸盐 (PPEGMA) 块结合起来.
- 通过改变聚合物疏水性来优化抗菌活性和细胞毒性之间的平衡.
主要方法:
- 合成的基于硫的BCP,具有不同比例的 (bz) 和甲基 (me) 疏水侧组.
- 评估了对大肠杆菌和黄金杆菌的抗菌活性.
- 评估细胞活力以确定细胞毒性.
- 研究了与常规抗生素 (青素G,西普罗夫洛克萨) 的协同作用.
主要成果:
- 含有>30mol%基的BCP表现出最高的抗菌活性.
- 含有≤30mol%基的BCP显示出优异的细胞活力.
- 30mol%的基含量提供了抗微生物疗效和细胞相容性之间的最佳平衡.
- 当将BCP与青素G和西普罗夫洛克萨结合使用时,观察到协同效应,降低所需度.
结论:
- 基于硫的BCP通过调整疏水族群比率来提供可调节的抗微生物特性.
- 30mol%的基含量代表了平衡抗微生物活性和细胞相容性的最佳设计.
- 这些BCP显示出作为增强现有抗生素有效性的平台的潜力,提供了针对细菌病原体的新策略.
关键词:
抗生素 抗生素是一种抗生素.抗微生物聚合物的抗菌聚合物.区块共聚合物 区块共聚合物这就是西普罗夫洛克萨辛 (Ciprofloxacin).青素 G 青素 G 是一种青素.硫酸盐的硫酸盐是什么有协同作用的相互作用.更多相关视频
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