使用Catechol和Zwitterion功能化的共聚物来防止牙细菌粘附
Ashlin Sathyan1, Irene Kurtz2, Prerana Rathore2
1Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States.
ACS applied bio materials
|June 29, 2023
概括
合成了Zwitterionic共聚合物,以创建抗污染牙涂层. 这些功能性涂层粘附于酸,并在模拟的口腔环境中显著减少细菌的附着.
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
- 表面科学是一门学科.
背景情况:
- 牙材料需要强大的防性质,以防止细菌粘附和生物膜形成.
- 酸是牙面膜的关键组成部分,在涂层粘附性和生物污染抵抗性方面具有具有挑战性的表面.
- 在先进的口腔护理应用中,开发具有量身定制的粘合剂和防特性的功能性涂层至关重要.
研究的目的:
- 在酸上合成zwitterionic共聚物用于防涂层.
- 为了研究共聚合物组成 (甲基甲基酸盐与甲基酸基酸的比率) 对涂层性能的影响.
- 在模拟的口腔条件下评估这些涂料的粘合和抗生素污染性能.
主要方法:
- 合成甲基可醇甲基烯酸盐 (Cat-MA) 和甲基可醇基乙醇基可林 (MPC) 共聚物.
- 使用圆测量,接触角光度测量和X射线光电子谱学的表征.
- 在实验室中评估细菌粘附 (大肠杆菌,口腔链球菌) 和在模拟口腔条件下 (吞,口水) 的性能.
主要成果:
- 在酸上成功形成了大约10纳米厚的性共聚合物涂层.
- 合成的共聚合物表现出对酸表面的粘附性.
- 观察到,格拉姆阴性 (大肠杆菌) 和格拉姆阳性 (S. oralis) 细菌的附着显著减少.
- 在体外试验证实,即使在模拟机械和化学挑战之后,S. oralis粘附率也会降低.
结论:
- 具有可调节的catechol-to-zwitterion比率的zwitterionic共聚物为设计有效的抗牙涂层提供了一个有希望的策略.
- 这些功能性涂层对氧酸盐具有很好的粘附性,并且在口腔环境中对细菌殖民具有强大的抵抗力.
- 这些发现为口腔护理应用先进生物材料的合理设计提供了宝贵的见解.
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