用Zn修饰的粘土嵌入蒂摩尔或卡瓦克罗尔的分析和抗菌特性
Loris Pinto1, Federico Baruzzi1, Roberto Terzano2
1Institute of Sciences of Food Production (CNR-ISPA), Via G. Amendola 122/O, 70126 Bari, Italy.
Molecules (Basel, Switzerland)
|August 10, 2024
概括
含有卡瓦克罗尔和蒂摩尔的改性粘土显示出增强的抗菌活性. 这些混合材料提供持续释放,在活性包装等应用中对细菌菌株有效.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 食品科学 食品科学 食品科学
背景情况:
- 卡瓦克罗和蒂摩尔是天然的宽谱抗菌剂.
- 通过封装可以提高它们的波动性和性能.
- 改性粘土为增强抗微生物药物输送提供了一个有希望的基质.
研究的目的:
- 开发和描述含有卡瓦克罗尔和蒂摩尔的改性粘土的协同作用系统.
- 评估这些混合材料的抗菌性能和释放动力学.
- 探索它们在控制微生物病原体和腐烂细菌方面的潜在应用.
主要方法:
- 用离子对蒙莫里隆石 (MMT) 和石 (ZEO) 的修改.
- 将卡瓦克罗尔或蒂摩尔加载到改性粘土中 (ZnMMT,ZnZEO).
- 使用FT-IR,XPS,XRD,TGA和GC-MS进行表征.
- 针对细菌菌株的抗微生物测定和释放特征的评估.
主要成果:
- 成功地将卡瓦克罗尔/蒂摩尔装入高百分比 (26-33% w/w) 的 ZnMMT 和 ZnZEO 中.
- 卡瓦克罗尔和蒂摩尔的抗菌活性在混合材料中得到保留.
- 与ZnZEO杂交物相比,ZnMMT杂交物表现出明显更高的抗菌活性.
- 在较低度 (3.12 mg/mL) 时,ZnMMT复合物显示出自由卡瓦克罗尔/蒂摩尔不活跃的抑制区.
结论:
- 基于改性粘土的混合材料有效地提供具有增强抗菌特性的卡瓦克罗尔和蒂摩尔.
- ZnMMT复合材料在持续的抗微生物活性方面表现出卓越的性能.
- 这些材料适用于需要长期控制微生物病原体和腐烂细菌的应用,包括活性包装,生物材料和医疗器械.
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