研究基于多多巴胺的复合涂料的抗菌作用
Rahila Batul1,2, Mrinal Bhave1, Aimin Yu1
1Department of Chemistry and Biotechnology, School of Science, Computing & Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
Molecules (Basel, Switzerland)
|June 10, 2023
概括
聚多巴胺涂层与银纳米粒子和 gentamicin 用两种方法进行了准备. 在现场加载方法表明,抗微生物药物的释放速度较慢,持续,为抗菌提供了优越的长期有效性.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 纳米技术纳米技术
背景情况:
- 抗微生物耐药性需要新的涂层策略.
- 聚多巴胺 (PDA) 为功能性涂料提供了一个多功能平台.
- 结合银纳米粒子 (Ag NPs) 和 gentamicin 增强了抗微生物药物的有效性.
研究的目的:
- 为了比较两种不同的方法来制备基于多多巴胺的抗菌涂层.
- 为了评估银纳米粒子和 gentamicin 的加载和释放动力学.
- 评估开发的涂料的长期抗菌性能和协同活性.
主要方法:
- 使用了两种制备方法:现场加载 (Ag@Gen/PDA) 和物理吸附 (Ag/Gen@PDA).
- 在玻璃幻灯片上使用聚多巴胺聚合物和随后的抗菌剂结合制备了涂层.
- 在30天内监测了负载和释放概况,并对* Staphylococcus aureus*和* Escherichia coli*进行了抗菌活性测试.
主要成果:
- 在现场加载方法 (Ag@Gen/PDA) 的结果是,与物理吸附 (Ag/Gen@PDA) 相比,Ag NPs (46%与92%相比) 和 gentamicin 的释放速度明显较慢.
- 对于Ag@Gen/PDA (~0.006微克/毫升),每天的 جنتamicin释放量比Ag/Gen@PDA (~0.02微克/毫升) 低.
- 两种涂层类型都表现出协同抗微生物活性,防止细菌殖民.
结论:
- 在现场加载方法提供了更受控制和持续释放的抗微生物药物,从而提高了长期疗效.
- 含有Ag NPs和 gentamicin的聚多巴胺基涂层对常见的细菌病原体有效.
- 这项研究强调了制备方法在优化抗微生物涂层性能方面的重要性.
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