含有稳定的N-哈拉胺分子的抗菌半孔颗粒
Yuqing Shi1, Haidong Xu1, Yijing He1
1The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai200234, P. R. China.
ACS omega
|June 26, 2023
概括
新的颗粒有效杀死细菌,可以重复使用,为水消毒提供了有希望的解决方案. 这些可再生的抗微生物材料显示出对常见病原体的高疗效.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 纳米技术 纳米技术
背景情况:
- 开发有效和可持续的抗微生物药物对公共卫生和环境安全至关重要.
- 现有的水消毒方法经常面临有效性,再生和长期稳定性的挑战.
研究的目的:
- 合成高效率和可再生的抗微生物颗粒.
- 评估合成颗粒的抗菌性能和可重复使用性,用于水消毒应用.
主要方法:
- 通过oxa-Michael的添加,制备聚乙烯醇 (PVA) 和甲二烯胺 (MBA) 修饰的半孔颗粒 (PVA-MBA@SiO2).
- 在酸盐颗粒上 (PVA-MBA-Cl@SiO2) 植入N-哈拉胺功能组.
- 表面积 (BET) 和含量 (Cl+%) 的表征.
- 对黄金葡萄球菌和大肠杆菌O157:H7.7.的抗菌检测
主要成果:
- 优化的制剂产生了PVA-MBA@SiO2颗粒,BET表面积约为380 m2/g.
- 在PVA-MBA-Cl@SiO2颗粒中,Cl+%达到约3.80%.
- 抗菌性二氧化颗粒显示,在10分钟内,黄金葡萄球菌和大肠杆菌O157:H7的6日志失活.
- 这些颗粒具有出色的可再生性和长期稳定性.
结论:
- 合成的N-胺移植的颗粒是高效和可再生的抗菌剂.
- 这些颗粒因其有效性和可重复使用性而显示出可持续的水消毒应用的巨大潜力.
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