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对于生物膜破坏的pH响应聚合物凝

Haritha Asokan-Sheeja¹, Debdatta Das¹, Jenny N Nguyen¹

¹Department of Chemistry & Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States.

ACS applied bio materials

|July 7, 2025

概括

新的pH响应型水凝在慢性感染中有效准并破坏细菌生物膜. 这些对酸敏感的聚合物材料在酸性生物膜环境中释放抗菌,以加强处理.

科学领域:

生物材料科学生物材料科学
传染性疾病传染性疾病
药物运输药物运输药物运输

背景情况:

细菌生物膜是弹性结构,阻碍慢性感染治疗.
由细菌代谢引起的生物膜酸性进一步阻碍了抗微生物药物的有效性.
需要新的战略来准生物膜,特别是在它们的酸性微环境中.

研究的目的:

开发酸反应的双网水凝,用于有针对性的生物膜消灭.
在这些水凝中封装抗微生物,以提高有效性.
研究生物膜处理的pH触发释放机制.

主要方法:

使用自组装纳米纤维和4臂PEG聚合物制造双网络水凝.
加入一种非天然的离子氨基酸以提高pH响应度.
在水凝矩阵内封装抗微生物.
在酸性条件下评估水凝分解和抗微生物释放.

主要成果:

基聚合物水凝在弱酸性条件下表现出对pH反应的分解.
酸化导致水凝毛孔大小增加,并触发了封装的抗微生物的释放.
开发的水凝系统显示出有针对性的传递和破坏生物膜的潜力.

结论:

响应酸的聚合物水凝为对抗生物膜相关感染提供了一个有前途的平台.
由pH触发的释放机制增强了针对性地将抗微生物药物输送到酸性生物膜部位.
这种创新方法可能会导致更有效,更安全的慢性感染治疗方法.

关键词:

自动组装自动组装抗菌膜活动的抗菌膜活性.非天然的氨基酸.响应pH的水凝对pH有反应酸聚合物合物

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